Title :
Shared Sensing and Communications in Sensor Networks : The Multihop Case
Author :
Vedantam, Satish ; Mitra, Urbashi ; Sabharwal, Ashutosh
Author_Institution :
Dept. of Electr. Eng., Southern California Univ., CA
Abstract :
A joint sensing/communication problem is considered for sensor networks. Herein, the channel(s) between a source and destination are the parameters to be sensed and communicated over the network. Lower bounds on the end-to-end distortion are developed for a multihop, linear network. Internode communication is assumed to be done via an encode-and-forward approach. For a many-to-one topology with two hops, data aggregation and time-division communication approaches are compared. Asymptotic in the SNR, it is shown that a time-division approach is superior
Keywords :
data communication; encoding; telecommunication network topology; wireless sensor networks; data aggregation; encode-and-forward approach; end-to-end distortion; internode communication; linear network; many-to-one topology; multihop case; sensor networks; shared sensing; time-division communication; Acoustic sensors; Bandwidth; Network topology; Parameter estimation; Protocols; Relays; Sensor fusion; Spread spectrum communication; Technological innovation; Underwater communication;
Conference_Titel :
Information Theory, 2006 IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
1-4244-0505-X
Electronic_ISBN :
1-4244-0504-1
DOI :
10.1109/ISIT.2006.261859
