Elements of information theory
Elements of information theory
Wireless integrated network sensors
Communications of the ACM
Simultaneous optimization for concave costs: single sink aggregation or single source buy-at-bulk
SODA '03 Proceedings of the fourteenth annual ACM-SIAM symposium on Discrete algorithms
Polynomial time approximation schemes for Euclidean TSP and other geometric problems
FOCS '96 Proceedings of the 37th Annual Symposium on Foundations of Computer Science
The impact of spatial correlation on routing with compression in wireless sensor networks
Proceedings of the 3rd international symposium on Information processing in sensor networks
Scale-free aggregation in sensor networks
Theoretical Computer Science - Algorithmic aspects of wireless sensor networks
Network correlated data gathering with explicit communication: NP-completeness and algorithms
IEEE/ACM Transactions on Networking (TON)
ACM Transactions on Sensor Networks (TOSN)
IPSN'03 Proceedings of the 2nd international conference on Information processing in sensor networks
The rate loss in the Wyner-Ziv problem
IEEE Transactions on Information Theory - Part 2
Multiterminal source coding with high resolution
IEEE Transactions on Information Theory
Networked Slepian-Wolf: theory, algorithms, and scaling laws
IEEE Transactions on Information Theory
ReCoDa: reliable forwarding of correlated data in sensor networks with low latency
IWCMC '07 Proceedings of the 2007 international conference on Wireless communications and mobile computing
Stochastic binary sensor networks for noisy environments
International Journal of Sensor Networks
Exploiting data correlation for multi-scale processing in sensor networks
Proceedings of the 2nd international conference on Scalable information systems
Amplify and forward for correlated data gathering over hierarchical sensor networks
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Secure clustering and symmetric key establishment in heterogeneous wireless sensor networks
EURASIP Journal on Wireless Communications and Networking - Special issue on security and resilience for smart devices and applications
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Sensor networks measuring correlated data are considered, where the task is to gather data from the network nodes to a sink. A specific scenario is addressed, where data at nodes are lossy coded with high-resolution, and the information measured by the nodes has to be reconstructed at the sink within both certain total and individual distortion bounds. The first problem considered is to find the optimal transmission structure and the rate-distortion allocations at the various spatially located nodes, such as to minimize the total power consumption cost of the network, by assuming fixed nodes positions. The optimal transmission structure is the shortest path tree and the problems of rate and distortion allocation separate in the high-resolution case, namely, first the distortion allocation is found as a function of the transmission structure, and second, for a given distortion allocation, the rate allocation is computed. The second problem addressed is the case when the node positions can be chosen, by finding the optimal node placement for two different targets of interest, namely total power minimization and network lifetime maximization. Finally, node placement solution that provides tradeoff between the two metrics is proposed.