Impact of correlation in node locations on the performance of distributed compression
WONS'09 Proceedings of the Sixth international conference on Wireless On-Demand Network Systems and Services
Efficiency analysis and derivation of enhanced deployment models for sensor networks
International Journal of Ad Hoc and Ubiquitous Computing
Compression in wireless sensor networks: A survey and comparative evaluation
ACM Transactions on Sensor Networks (TOSN)
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In this paper, we investigate the cross-layer design of medium access control (MAC) protocols and distributed source coding (DSC). We closely model the interaction between the source compression and the medium access control layer for sensor network applications and determine the parameters that are most relevant to both the layers. Specifically, we exploit the spatio-temporal redundancy in the measurements at the sensors and adjust the MAC parameters accordingly. We use short code block lengths, which are easily realizable on resource-constrained sensor nodes. Experimental results with real sensor nodes validate our approach. Whereas this approach yields high energysavings in sensor networks applications, it also preserves the accuracy of the data recovered at the sink nodes.