Distributed data storage mechanisms are inevitable in distributed networks in order to provide robustness and data security. Wireless sensor networks are distributed systems with very constrained resources. The constraints embrace the available energy, computation power and memory. This is why also distributed data storage mechanisms need to be small regarding memory and efficient concerning computation power and energy consumption.
Particular interest has to be put on the reduction of network traffic. Every additional bit that has to be transferred needs additional computation power and additional energy.
It would be part of the thesis to simulate and evaluate network traffic, distribution patterns and energy consumption of available distributed data storage approaches for wireless sensor networks. It is recommended to use the network simulator ns-2. The results should be discussed with emphasis on the expectable trade-off between distribution (robustness) and energy consumption (network traffic).