Cooperative Time-Reversal Communication is Order-Optimal for Data Aggregation in Wireless Sensor Networks

Data gathering is one of the most important services provided by wireless sensor networks (WSNs). The predominant traffic pattern in data gathering services is many-to-one communication. Hence, it is critical to understand the limitations of many-to-one information flows and devise efficient data ag...

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Bibliographic Details
Published in2006 IEEE International Symposium on Information Theory pp. 222 - 226
Main Authors Barton, R.J., Rong Zheng
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.07.2006
Subjects
Acoustic imaging
Computer networks
Computer science
cooperative timer-reversal communication
data aggregation
H infinity control
Pattern analysis
Protocols
Relays
Spread spectrum communication
Telecommunication traffic
wireless sensor network
Wireless sensor networks
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Summary:Data gathering is one of the most important services provided by wireless sensor networks (WSNs). The predominant traffic pattern in data gathering services is many-to-one communication. Hence, it is critical to understand the limitations of many-to-one information flows and devise efficient data aggregation protocols to support prolonged operations in WSNs. In this paper, we demonstrate that a data aggregation rate of p(logn/n) is optimal and that this rate can be achieved using a generalization of cooperative beam forming called cooperative time-reversal communication. In contrast, the non-cooperative multihop relay strategies widely adopted in the literature are shown to be suboptimal in both capacity and network lifetime
ISBN:142440505X
9781424405053
ISSN:2157-8095
2157-8117
DOI:10.1109/ISIT.2006.261837