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  • Publikationen 2019

Publikationen 2019

seit Januar 2019

(1) SPICE-based SET Pulse Width Model
M. Andjelkovic, M. Krstic, R. Kraemer
Proc. 31. ITG/GI/GMM-Workshop Testmethoden und Zuverlässigkeit von Schaltungen und Systemen (TuZ 2019), 25 (2019)
(REDOX)
In this paper, a SET pulse width model derived from SPICE simulations is presented. The model expresses the SET pulse width in terms of particle’s LET, target inverter’s drive strength and supply voltage. A bias-dependent current source was employed to model the SET current pulse, thus providing better accuracy compared to similar approaches based on the widely used double-exponential current source. Evaluation was done for standard inverters in IHP’s 130 nm CMOS process. The average relative error of the proposed model with respect to the results from SPICE simulations is below 10 % for analyzed cases.

(2) A Methodology for Characterization and Mitigation of SET Effects in Combinational Logic
M. Andjelkovic, M. Krstic, R. Kraemer
Proc. 24th IEEE European Test Symposium: PhD Forum (ETS 2019), (2019)
(REDOX)

(3) Characterization and Modeling of SET Generation Effects in CMOS Standard Logic Cells
M. Andjelkovic, Y. Li, Z. Stamenkovic, M. Krstic, R. Kraemer
Proc. 25th IEEE International Symposium on On-Line Testing and Robust System Design (IOLTS 2019), 212 (2019)
(REDOX)

(4) An Integrated Radar Tile for Digital Beamforming X-/Ka-Band Synthetic Aperture Radar Instruments
E. Arnieri, L. Boccia, G. Amendola, S. Glisic, C. Mao, S. Gao, T. Rommel, P. Penkala, M. Krstic, U. Yodprasit, A. Ho, O. Schrape, M. Younis
IEEE Transactions on Microwave Theory and Techniques 67(3), 1197 (2019)
DOI: 10.1109/TMTT.2018.2889038, (Different)

(5) Highly Integrated Dual-Band Dual-Polarized Antenna Tile for SAR Applications
E. Arnieri, L. Boccia, G. Amendola, S. Glisic, C. Mao, S. Gao, T. Rommel, P. Penkala, M. Krstic, U. Yodprasit, O. Schrape, M. Younis
Proc. 13th European Conference on Antennas and Propagation (EuCAP 2019), (2019)
(Different)

(6) A Radiation Tolerant 10/100 Ethernet Transceiver for Space Applications
A. Breitenreiter, J. Lopez, P. Reviriego, M. Krstic, Ú. Gutierro, M. Sánchez-Renedo, D. González
Proc. 25th IEEE International Symposium on On-Line Testing and Robust System Design (IOLTS 2019), 220 (2019)
(SEPHY)

(7) Selective Fault Tolerance by Counting Gates with Controlling Value
A. Breitenreiter, St. Weidling, O. Schrape, St. Zeidler, P. Reviriego, M. Krstic
Proc. 25th IEEE International Symposium on On-Line Testing and Robust System Design (IOLTS 2019), 15 (2019)
(SEPHY)

(8) Real-World Deployments of Sensor Networks: Practical Lessons for Researchers
M. Brzozowski, M. Frohberg, P. Langendörfer
Computer Communications 145, 326 (2019)
(DIAMANT)
In this paper, we share lessons learned from our previous installations of wireless sensor networks, and hope these lessons will help other reserach groups to install real-world applications more efficiently.
We rediscovered the well known KISS principle (Keep it Simple Stupid), which holds true especially for real-world deployments of sensor networks, especially that as researchers we tend to prefer more complex and sophisticated ideas.
Second, we underestimated practical issues in outdoor installations, and it led to unexpected and time-consuming problems. For instance, we did not notice that the selected voltage regulator works reliably only in temperatures above zero degree Celsius, leading to packet losses and a long debugging process.
Third, apart from extensive software tests before deployment, our protocols and applications include also self-healing instructions. They detect software bugs on run-time and restart motes if needed.
With all these three major steps, we were able to run real-world sensor networks for several years without major problems. 

(9) 100 Gbit/s End-to-End Communication: Adding Flexibility with Protocol Templates
S. Büchner, A. Hasani, J. Nolte, L. Lopacinski, R. Kraemer
Proc. 43rd IEEE Conference on Local Computer Networks (LCN 2018), 263 (2019)
DOI: 10.1109/LCN.2018.8638078, (DFG-SPP1655)

(10) 5G-PICTURE: A Programmable Multi-Tenant 5G Compute-RAN-Transport Infrastructure
D. Camps-Mur, K. Katsalis, I. Freire, J. Gutiérrez Teran, N. Makris, S. Pontarelli, R. Schmidt
Proc. 28th European Conference on Networks and Communications (EuCNC 2019), (2019)
(5G-PICTURE)

(11) 5G-XHaul: A Novel Wireless-Optical SDN Transport Network to Support Joint 5G Backhaul and Fronthaul Services
D. Camps-Mur, J. Gutierrez Teran, E. Grass, A. Tzanakaki, P. Flegkas, K. Choumas, D. Giatsios, A.F. Beldachi, T. Diallo, J. Zou, P. Legg, J. Bartelt, J.K. Chaudhary, A. Betzler, J.J. Aleixendri, R. Gonzalez, D. Simeonidou
IEEE Communications Magazine, GCN (Global Communications Newsletters) 57(7), 99 (2019)
DOI: 10.1109/MCOM.2019.1800836, (5G-XHaul)

(12) Self-Adaptive Cross-Layer Fault Tolerance in Multiprocessor Systems
J.-C. Chen, M. Krstic
Proc. 24th IEEE European Test Symposium: PhD Forum (ETS 2019), (2019)
(RESCUE)

(13) PICO: A Platform Independent Communications Middleware for Heterogeneous Devices in Smart Grids
J. Chen, E. Canete, D. Garrido, M. Diaz, K. Piotrowski
Computer Standards and Interfaces 65, 1 (2019)
DOI: 10.1016/j.csi.2019.01.005, (e-balance)
This paper presents a data-centric middleware responsible for real-time communication and data storage in smart grids. The middleware offers a high level programming model that provides ways of storing/getting information from/to the grid and encrypts messages thus providing a secure message exchange. The design has taken into account the heterogeneity of devices, software platforms and stakeholders involved in this kind of scenario. A modular vision is followed in such a way that middleware components can be easily adapted to different platforms and a simple data interface is provided by means of REST (Representational State Transfer) web services and a high level asynchronous API. The middleware is currently being used in the context of a European project (e-balance) where soft real-time requirements, security and low capacity devices are some of the requirements in an example Cyber-physical System (CPS). The demonstration scenarios are detailed in this paper together with the validation tests that show that the use of this programming abstraction is feasible.

(14) Design of Robust Quantizers for Low-Bit Analog-to-Digital Converters for Gaussian Source
M.R. Dincic, Z.H. Peric, D.B. Denic, Z. Stamenkovic
Journal of Circuits, Systems, and Computers (JCSC) 28(1), 1940002 (2019)
DOI: 10.1142/S0218126619400024
This paper considers the design of robust logarithmic µ-law companding quantizers for the use in analog-to-digital converters in communication system receivers. The quantizers are designed for signals with the Gaussian distribution, since signals at the receivers of communication systems can be very well modeled by this type of distribution. Furthermore, linearization of the logarithmic µ-law companding function is performed to simplify hardware implementation of the quantizers. In order to reduce energy consumption, low-resolution quantizers are considered (up to 5 bits per sample). The main advantage of these quantizers is high robustness - they can provide approximately constant SNR in a wide range of signal power (this is very important since the signal power at receivers can vary in wide range, due to fading and other transmission effects). Using the logarithmic µ-law companding quantizers there is no need for using AGC (automatic gain control), which reduces the implementation complexity and increases the speed of the analog-to-digital converters (ADC) due to the absence of AGC delay. Numerical results show that the proposed model achieves good performances, better than a uniform quantizer, especially in a wide range of signal power. The proposed low-bit ADCs can be used in MIMO and 5G massive MIMO systems, where due to very high operating frequencies and a large number of receiving channels (and consequently a large number of ADCs), the reduction of ADC complexity and energy consumption becomes a significant goal.

(15) Resilience more than the Sum of Security and Dependability: Cognition is what makes the Difference
Z. Dyka, E. Vogel, I. Kabin, M. Aftowicz, D. Klann, P. Langendörfer
Proc. 8th Mediterranean Conference on Embedded Computing (MECO 2019), 23 (2019)
DOI: 10.1109/MECO.2019.8760139, (Total Resilience)

(16) Secret Key Generation Based on Channel State Information in a mmWave Communication System
N. Felkaroski, M. Petri
Proc. 12th International Conference on Systems, Communications and Coding (SCC 2019), 285 (2019)
DOI: 10.30420/454862049, (fast secure)

(17) Next-Cell Prediction Based on User’s Long-Term Cell Sequence History and Current-Cell Trajectory
M. Goodarzi, V. Sark, N. Maletic, J. Gutierrez Teran, E. Grass
Proc. 22nd Conference on Innovation in Clouds, Internet and Networks (ICIN 2019), 257 (2019)
DOI: 10.1109/ICIN.2019.8685910, (5G-XHaul)

(18) RESCUE EDA Toolset for Interdependent Aspects of Reliability, Security and Quality in Nanoelectronic Systems Design
C.C. Gürsoy, G. Medeiros, J.-C. Chen, N. George, J.E. Rodriguez Condia, T. Lange, A. Damljanovic, A. Balakrishnan, R. Segabinazzi Ferreira, X. Lai, S. Masoumian, D. Petryk, T. Koylu, F. da Silva, A. Bagbaba, S. Hamdioui, M. Taouil, M. Krstic, P. Langendörfer, Z. Dyka, M. Huebner, J. Nolte, H.T. Vierhaus, M. Sonza Reorda, G. Squillero, L. Sterpone, J. Raik, D. Alexandrescu, M. Glorieux, G. Selimis, G.J. Schrijen, A. Klotz, C. Sauer, M. Jenihhin
Proc. Design, Automation and Test in Europe (DATE 2019), (2019)
(RESCUE)

(19) A Modified Shuffling Method to Split the Critical Path Delay in Layered Decoding of QC-LDPC Codes
A. Hasani, L. Lopacinski, S. Büchner, J. Nolte, R. Kraemer
Proc. 30th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2019), (2019)
(DFG-SPP1655)

(20) An Unnoticed Property in QC-LDPC Codes to Find the Message from the Codeword in Non-Systematic Codes
A. Hasani, L. Lopacinski, S. Büchner, J. Nolte, R. Kraemer
Proc. 28th European Conference on Networks and Communications (EuCNC 2019), 6 (2019)
DOI: 10.1109/EuCNC.2019.8801957, (DFG-SPP1655)

(21) An Integrated VCO With Frequency Tripler in SiGe BiCMOS with a 1-dB Bandwidth from 22GHz to 32GHz for Multiband 5G Wireless Networks
F. Herzel, G. Panic, J. Borngräber, D. Kissinger
Proc. 12th German Microwave Conference (GeMIC 2019), 99 (2019)
DOI: 10.23919/GEMIC.2019.8698128, (fast spot)

(22) Performance Assessment for OAM Antenna Arrays
A. Ilic, N. Vojnovic, S. Savic, N. Maletic, E. Grass, M. Ilic
Proc. 9th IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC 2019), 171 (2019)
(PPP Serbien 2018)

(23) Horizontal DPA Attacks against ECC: Impact of Implemented Field Multiplication Formula
I. Kabin, Z. Dyka, D. Klann, P. Langendörfer
Proc. 14th IEEE International Conference on Design & Technology of Integrated Systems in Nanoscale Era (DTIS 2019), (2019)
DOI: 10.1109/DTIS.2019.8735011, (Total Resilience)
Due to the nature of applications such as critical infrastructure and the Internet of Things etc. side channel analysis attacks are becoming a serious threat. Side channel analysis attacks take advantage from the fact that the behavior of crypto implementations can be observed and provides hints that simplify revealing keys. A new type of SCA are so called horizontal SCAs. Well known randomization based countermeasures are effective means against vertical DPA attacks but they are not effective against horizontal DPA attacks. In this paper we investigate how the formula used to implement the multiplication of GF(2n)-elements influences the results of horizontal DPA attacks against a Montgomery kP-implementation. We implemented 5 designs with different partial multipliers, i.e. based on different multiplication formulae. We used two different technologies, i.e. a 130 and a 250 nm technology, to simulate power traces for our analysis. We show that the implemented multiplication formula influences the success of horizontal attacks significantly, but we also learned that its impact differs from technology to technology. Our analysis also reveals that this kind of randomization as a single countermeasure is not sufficient to protect cryptographic designs against horizontal DPA attacks.

(24) Horizontal Attacks Using AI: Comparison with Traditional Analysis Methods
I. Kabin, M. Aftowicz, Y. Varabei, D. Klann, Z. Dyka, P. Langendörfer
Proc. 10th IFIP International Conference on New Technologies, Mobility & Security (NTMS 2019), (2019)
DOI: 10.1109/NTMS.2019.8763777, (Total Resilience)

(25) On the Complexity of Attacking Commercial Authentication Products
I. Kabin, Z. Dyka, D. Klann, P. Langendörfer
Proc. 10th IFIP International Conference on New Technologies, Mobility & Security (NTMS 2019), (2019)
DOI: 10.1109/NTMS.2019.8763782, (Total Resilience)

(26) A Scalable 79-GHz Radar Platform Based on Single-Channel Transceivers
M. Kucharski, A. Ergintav, W.A. Ahmad, M. Krstic, H.J. Ng, D. Kissinger
IEEE Transactions on Microwave Theory and Techniques 67(9), 3882 (2019)
DOI: 10.1109/TMTT.2019.2914104, (EMPHASE)
This paper presents a scalable E-band radar platform based on single-channel fully integrated transceivers (TRX) manufactured using 130-nm silicon–germanium (SiGe) BiCMOS technology. The TRX is suitable for flexible radar systems exploiting massive multiple-input-multiple-output (MIMO) techniques for multidimensional sensing. A fully integrated fractional-N phase-locked loop (PLL) comprising a 39.5-GHz voltage-controlled oscillator is used to generate wideband frequency-modulated continuous-wave (FMCW) chirp for E-band radar front ends. The TRX is equipped with a vector modulator (VM) for high-speed carrier modulation and beam-forming techniques. A single TRX achieves 19.2-dBm maximum output power and 27.5-dB total conversion gain with input-referred 1-dB compression point of −10 dBm. It consumes 220 mA from 3.3-V supply and occupies 3.96 mm2 silicon area. A two-channel radar platform based on full-custom TRXs and PLL was fabricated to demonstrate high-precision and high-resolution FMCW sensing. The radar enables up to 10-GHz frequency ramp generation in 74–84-GHz range, which results in 1.5-cm spatial resolution. Due to high output power, thus high signal-to-noise ratio (SNR), a ranging precision of 7.5 µm for a target at 2 m was achieved. The proposed architecture supports scalable multichannel applications for automotive FMCW using a single local oscillator (LO).

(27) Soft Error Detection and Correction Architecture for Asynchronous Bundled Data Designs
F.A. Kuentzer, M. Krstic
Proc. 25th IEEE International Symposium on Asynchronous Circuits and Systems (ASYNC 2019), (2019)
(ENROL)

(28) Delay Lines Test Method for the Blade Template
F.A. Kuentzer, L. Juracy, M. Moreira, A. Amory
Proc. 25th IEEE International Symposium on Asynchronous Circuits and Systems (ASYNC 2019), (2019)

(29) The Impact of Diverse Execution Strategies on Incremental Code Updates for Wireless Sensor Networks
K. Lehniger, S. Weidling
Proc. 8th International Conference on Sensor Networks (SENSORNETS 2019), (2019)
DOI: 10.5220/0007383400300039, (DIAMANT)

(30) Modular Data Link Layer Processing for THz Communication
L. Lopacinski, M.H. Eissa, G. Panic, A. Hasani, R. Kraemer
Proc. 22nd International Symposium on Design and Diagnostics of Electronic Circuits and Systems (DDECS 2019), (2019)
DOI: 10.1109/DDECS.2019.8724657, (fast spot)

(31) Modular Data Link Layer Processing for THz Communication
L. Lopacinski, M.H. Eissa, G. Panic, A. Hasani, R. Kraemer
Proc. 22nd International Symposium on Design and Diagnostics of Electronic Circuits and Systems (DDECS 2019), (2019)
DOI: 10.1109/DDECS.2019.8724657, (DFG-SPP1655)

(32) Data Link Layer Processor for 100 Gbps Terahertz Wireless Communications in 28 nm CMOS Technology
L. Lopacinski, M. Marinkovic, G. Panic, M.H. Eissa, A. Hasani, K. KrishneGowda, R. Kraemer
IEEE Access 7, 44489 (2019)
DOI: 10.1109/ACCESS.2019.2907156, (fast spot)
In this paper, we show our 165 Gbps data link layer processor for wireless communication in the terahertz band. The design utilizes interleaved Reed-Solomon codes with dedicated link adaptation, fragmentation, aggregation, and hybrid-automatic-repeat-request. The main advantage is the low chip area required to fabricate the processor, which is at least 2 times lower than the area of low-density parity-check decoders. Surprisingly, our solution loses only ~1 dB gain when compared to high-speed low-density parity-check decoders. Moreover, with only 2.38 pJ/bit of energy consumption at 0.8V, one of the best results in the class of comparable implementations has been achieved. Alongside, we show our vision of a complete 100 Gbps wireless transceiver, including radio frequency frontend and baseband processing. For the baseband realization, we propose parallel sequence spread spectrum and channel combining at the baseband level. Challenges to high-speed wireless transmission at the terahertz band are addressed as well. To the authors’ best knowledge, it is one of the first data link layer implementations that deal with a data rate of ≥100 Gbps.

(33) Data Link Layer Processor for 100 Gbps Terahertz Wireless Communications in 28 nm CMOS Technology
L. Lopacinski, M. Marinkovic, G. Panic, M.H. Eissa, A. Hasani, K. KrishneGowda, R. Kraemer
IEEE Access 7, 44489 (2019)
DOI: 10.1109/ACCESS.2019.2907156, (DFG-SPP1655)
In this paper, we show our 165 Gbps data link layer processor for wireless communication in the terahertz band. The design utilizes interleaved Reed-Solomon codes with dedicated link adaptation, fragmentation, aggregation, and hybrid-automatic-repeat-request. The main advantage is the low chip area required to fabricate the processor, which is at least 2 times lower than the area of low-density parity-check decoders. Surprisingly, our solution loses only ~1 dB gain when compared to high-speed low-density parity-check decoders. Moreover, with only 2.38 pJ/bit of energy consumption at 0.8V, one of the best results in the class of comparable implementations has been achieved. Alongside, we show our vision of a complete 100 Gbps wireless transceiver, including radio frequency frontend and baseband processing. For the baseband realization, we propose parallel sequence spread spectrum and channel combining at the baseband level. Challenges to high-speed wireless transmission at the terahertz band are addressed as well. To the authors’ best knowledge, it is one of the first data link layer implementations that deal with a data rate of ≥100 Gbps.

(34) Experimental Evaluation of a 60 GHz Beamforming Solution with 32-Dipole Printed Array
N. Maletic, A. Malignaggi, B. Antonovici, J. Bozmarov, M. Elkhouly, J. Gutierrez Teran, V. Petrovic, E. Grass
Proc. 49th European Microwave Conference (EuMC 2019)
(5G-XHaul)
This paper presents a 60 GHz beamforming (BF) solution based on a 8-channel BF chip with an on-board dipole array antenna. A single BF chip has a Tx OP1dB of 1 dBm and an Rx IP1dB of -23 dBm per RF channel, occupying a silicon area of 27 mm2. The antenna array is based on eight in-line 4×1-dipole elements and it has a measured peak gain of 17 dBi across the 55-66 GHz band. The measurement results of the integrated solution show ±45° azimuth steering with an EIRP of 23 dBm.

(35) Wireless Communication Systems in the 240 GHz Band: Applications, Feasibility, and Challenges
N. Maletic, V. Sark, M.H. Eissa, J. Gutierrez Teran, E. Grass, O. Bouchet
Proc. 16th International Symposium on Wireless Communication Systems (ISWCS 2019), (2019)
(WORTECS)

(36) Sono-Teleconsulting (USTeleCon) – Update 2019
D. Nürnberg, A. Haddadi Esfahani, D. Boten, H. Lo, St. Ortmann
Ultraschall in der Medizin / European Journal of Ultrasound (UiM/EJU) 40(S01), S54 (2019)
(Digilog)

(37) Sono-Teleconsulting
St. Ortmann, A. Haddadi Esfahani, Ch. Wenger, V. Frauendorf, D. Nürnberg
Proc. 1. digilog-Kongress 2019, 114 (2019)
(Digilog)

(38) A SoC-based SDR Platform for Ultra-High Data Rate Broadband Communication, Radar and Localization Systems
M. Petri, M. Ehrig
Proc. 11th Wireless Days Conference (WD 2019), (2019)
DOI: 10.1109/WD.2019.8734240

(39) Achieving Millimeter Precision Distance Estimation using Two-Way Ranging in the 60 GHz Band
V. Sark, N. Maletic, M. Ehrig, J. Gutiérrez Teran, E. Grass
Proc. 28th European Conference on Networks and Communications (EuCNC 2019), 310 (2019)
DOI: 10.1109/EuCNC.2019.8801999, (WORTECS)

(40) Aspects on Timing Modeling of Radiation Hardness by Design Standard Cell-Based ∆TMR Flip-Flops
O. Schrape, A. Breitenreiter, St. Zeidler, M. Krstic
Proc. 22nd EUROMICRO Conference on Digital System Design and Software Engineering and Advanced Applications (Euromicro DSD & SEAA 2019), 639 (2019)

(41) Simulation-Based Verification of the Youngest-First Round-Robin Core Gating Pattern
A. Simevski, M. Krstic
Proc. 29th International Symposium on Power and Timing Modeling, Optimization and Simulation (PATMOS 2019), 162 (2019)

(42) Sequential Channel Equalization in Strong Line-of-Sight MIMO Communication
X. Song, D. Cvetkovski, W. Rave, E. Grass, G. Fettweis
IEEE Transactions on Wireless Communications 18(1), 340 (2019)
DOI: 10.1109/TWC.2018.2879661, (maximumMIMO)
In this paper, we show a novel algorithm for strong line-of-sight (LoS) multiple-input-multiple-output (MIMO) channel equalization. With optimally spaced antennas under specific arrangements, the LoS channels can be made spatially orthogonal. In practice, antenna displacements are expected. Conventional algorithms like zero-forcing (ZF) do not consider the special properties of the LoS MIMO channel and result in high complexity. We show that the LoS MIMO channel can be factorized into a product of three matrices. Thereby, the two diagonal matrices at the outer product positions are the most varying terms and should be compensated dynamically. Being a good tradeoff between complexity and robustness, the proposed sequential channel equalization is applied in a reverse order of the factorization. The algorithm can be applied to LoS MIMO systems with uniform linear or rectangular arrays, which are making use of digital or analog equalization. By considering the usage of the Winograd butterfly and Butler matrices, the number of multiplications in both digital and analog implementations of the proposed solution is increasing approximately linearly with respect to the number of antennas, while the complexity of the state-of-the-art designs grows quadratically. As found numerically and verified experimentally, the proposed method performs nearly as well as the ZF-based algorithms with near-optimal arrangements, while having significantly lower complexity.

(43) Silicon Systems for Wireless Communications - Design, Modeling, Verification, Implementation, Integration, and Test
Z. Stamenkovic
Proc. 42nd International Spring Seminar on Electronics Technology (ISSE 2019), 12 (2019)
(WBN)

(44) Hardware/Software Co-design of Wireless Communication Systems
Z. Stamenkovic, M. Stojcev, B. Dimitrijevic
Proc. 31st International Conference on Microelectronics (MIEL 2019), 45 (2019)

(45) Noise Performance of Orthogonal RF Beamforming for THz Radio Communications
K.K. Tiwari, E. Grass, R. Kraemer
Proc. IEEE Computing and Communication Workshop and Conference (CCWC 2019), 793 (2019)
DOI: 10.1109/CCWC.2019.8666546, (WORTECS)
Ultra wide-band terahertz (THz) radio links are envisaged for high throughput and low latency radio communication from server to virtual reality (VR) head mounted display (HMD). Orthogonal radio frequency (RF) beamforming is suitable for such extremely high frequency radio links owing to the propagation characteristics. For RF beam training, the transmit-receive (Tx-Rx) beam combination yielding maximum received signal strength indication (RSSI) is selected. For typical complex signals employed in IQ architecture receivers,  RSSI is Rayleigh distributed. Receiver noise can cause false beam selections manifesting in communication rate loss. In this paper, analytically derived closed-form expressions and preliminary Monte Carlo (MC) simulation results for such noise performance evaluation have been presented.

(46) Monopulse-Based THz Beam Tracking for Indoor Virtual Reality Applications
K.K. Tiwari, V. Sark, E. Grass, R. Kraemer
Proc. 24. ITG Fachtagung Mobilkommunikation - Technologien und Anwendungen (2019), 10 (2019)
(WORTECS)

(47) A Survey on Bluetooth Multi-Hop Networks
N. Todtenberg, R. Kraemer
Ad Hoc Networks 93, 101922 (2019)
DOI: 10.1016/j.adhoc.2019.101922
Bluetooth was firstly announced in 1998. Originally designed as cable replacement connecting devices in a point-to-point fashion its high penetration arouses interest in its ad-hoc networking potential. This ad-hoc networking potential of Bluetooth is advertised for years - but until recently no actual products were available and less than a handful of real Bluetooth multi-hop network deployments were reported. The turnaround was triggered by the release of the Bluetooth Low Energy Mesh Profile which is unquestionable a great achievement but not well suited for all use cases of multi-hop networks. This paper surveys the tremendous work done on Bluetooth multi-hop networks during the last 20 years. All aspects are discussed with demands for a real world Bluetooth multi-hop operation in mind. Relationships and side effects of different topics for a real world implementation are explained. This unique focus distinguishes this survey from existing ones. Furthermore, to the best of the authors’ knowledge this is the first survey consolidating the work on Bluetooth multi-hop networks for classic Bluetooth technology as well as for Bluetooth Low Energy. Another individual characteristic of this survey is a synopsis of real world Bluetooth multi-hop network deployment efforts. In fact, there are only four reports of a successful establishment of a Bluetooth multi-hop network with more than 30 nodes and only one of them was integrated in a real world application - namely a photovoltaic power plant.

(48) ParSec: Ein innovatives Funksystem für die Fertigungsautomation
L. Underberg, R. Kraemer, J. von Hoyningen-Huene, R. Kays
at - Automatisierungstechnik 67(1), 29 (2019)
DOI: 10.1515/auto-2018-0056, (ParSec)

(49) Intelligent Clustering as a Means to Improve K-Means Based Horizontal Attacks
Y. Varabei, I. Kabin, Z. Dyka, D. Klann, P. Langendörfer
Proc. 30th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2019) Workshop-W6: Machine Learning for Security and Cryptography, (2019)
(Total Resilience)

(50) A Programmable Error-Predictive In-Situ Delay Monitor for Adaptive Low Power and Error-Resilient Complex System-On-Chip
M. Veleski, R. Kraemer, M. Krstic
Proc. 9th Biannual European - Latin American Summer School on Design, Test and Reliability (BELAS 2019), (2019)

(51) Programmable In-Situ Delay Monitor for Energy-Efficient and Resilient Complex SoC
M. Veleski, R. Kraemer, M. Krstic
Proc. 24th IEEE European Test Symposium: PhD Forum (ETS 2019), (2019)

(52) Securing Over-the-Air Code Updates in Wireless Sensor Networks
Ch. Wittke, K. Lehniger, St. Weidling, M. Schölzel
Harnessing the Internet of Everything (IoE) for Accelerated Innovation Opportunities, 1st Edition, Editors: P.J.S. Cardoso, J. Monteiro, J. Semião, J.M.F. Rodrigues, Chapter 13. Securing Over-the-Air Code Updates in Wireless Sensor Networks, IGI Global, 302 (2019) 
DOI: 10.4018/978-1-5225-7332-6.ch013, (DIAMANT)
With the growing number of wireless devices in the IoT, maintenance and management of these devices becomes a key issue. In particular, the capability for wireless code updates is a must in order to fix security issues, software bugs, and extend firmware functionality in the field. Thereby, code update mechanisms in WSNs have to deal with limited resources. On top of that, the capability of wireless code updates also opens new security vulnerabilities. The chapter presents a general overview about various approaches for OTA code update techniques for WSNs. Distribution protocols as well as techniques for improving the reliability of these updates are presented, too. Based on this overview about existing OTA techniques their security flaws are presented along with some existing attacks and possible countermeasures. Therefore, a classification of security threats is presented and which of them can be used more easily with code update functionality. Finally the state of the art countermeasures are presented and compared if they secure the mentioned weakened security objectives.

(53) Horizontal DEMA Attack as the Criterion to Select the Best Suitable EM Probe
Ch. Wittke, I. Kabin, D. Klann, Z. Dyka, A. Datsuk, P. Langendörfer
über: http://eprint.iacr.org/
(Total Resilience)
Implementing cryptographic algorithms in a tamper resistant way is an extremely complex task as the algorithm used and the target platform have a significant impact on the potential leakage of the implementation. In addition the quality of the tools used for the attacks is of importance. In order to evaluate the resistance of a certain design against electromagnetic emanation attacks – as a highly relevant type of attacks – we discuss the quality of different electromagnetic (EM) probes as attack tools. In this paper we propose to use the results of horizontal attacks for comparison of measurement setup and for determining the best suitable instruments for measurements. We performed horizontal differential electromagnetic analysis (DEMA) attacks against our ECC design that is an im-plementation of the Montgomery kP algorithm for the NIST elliptic curve B-233. We experimented with 7 different EM probes under same conditions: attacked FPGA, design, inputs, measurement point and measurement equipment were the same, excepting EM probes. The used EM probe influences the success rate of performed attack significantly. We used this fact for the comparison of probes and for determining the best suitable one.

Das Gebäude und die Infrastruktur des IHP wurden finanziert vom Europäischen Fonds für regionale Entwicklung, von der Bundesregierung und vom Land Brandenburg.