Scalable feedback control for distributed beamforming in sensor networks

R Mudumbai; J Hespanha; U Madhow; G Barriac

doi:10.1109/ISIT.2005.1523309

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Conference proceeding

Scalable feedback control for distributed beamforming in sensor networks

R Mudumbai, J Hespanha, U Madhow and G Barriac

Proceedings. International Symposium on Information Theory, 2005. ISIT 2005, Vol.2005, pp.137-141

2005

DOI: 10.1109/ISIT.2005.1523309

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Abstract

Recent work has shown that large gains in communication capacity are achievable by distributed beamforming in sensor networks. The principal challenge in realizing these gains in practice, is in synchronizing the carrier signal of individual sensors in such a way that they combine coherently at the intended receiver. In this paper, we provide a scalable mechanism for achieving phase synchronization in completely distributed fashion, based only on feedback regarding the power of the net received signal. Insight into the workings of the protocol is obtained from a simple theoretical model that provides accurate performance estimates

Array signal processing

Biosensors

Capacitive sensors

Diversity methods

Feedback control

Frequency synchronization

Intelligent networks

Master-slave

Protocols

Timing

Details

Title: Subtitle: Scalable feedback control for distributed beamforming in sensor networks
Creators: R Mudumbai - University of California, Santa Barbara
J Hespanha - University of California, Santa Barbara
U Madhow - University of California, Santa Barbara
G Barriac - University of California, Santa Barbara
Resource Type: Conference proceeding
Publication Details: Proceedings. International Symposium on Information Theory, 2005. ISIT 2005, Vol.2005, pp.137-141
Publisher: IEEE
DOI: 10.1109/ISIT.2005.1523309
ISSN: 2157-8095
eISSN: 2157-8117
Language: English
Date published: 2005
Academic Unit: Electrical and Computer Engineering
Record Identifier: 9984197215202771

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