Abstract
By viewing the coherent wireless sensor network (WSN) setup as a distributed space-time multi-input single-output (MISO) system, we minimize average transmit-power when sensors communicate with a fusion center (FC) using adaptive modulation and coding over a wireless fading channel. To this end, we derive optimal distributed beamforming and resource allocation strategies when the full (F-) channel state information at the transmitters (CSIT) is available, or, each sensor has F-CSIT of its own link with the FC but only quantized CSIT of other sensors through finite-rate feedback. Numerical results are presented to evaluate the power savings of the novel strategies.
Original language | English (US) |
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Title of host publication | Conference Record of the 40th Asilomar Conference on Signals, Systems and Computers, ACSSC '06 |
Pages | 1516-1520 |
Number of pages | 5 |
DOIs | |
State | Published - Dec 1 2006 |
Event | 40th Asilomar Conference on Signals, Systems, and Computers, ACSSC '06 - Pacific Grove, CA, United States Duration: Oct 29 2006 → Nov 1 2006 |
Other
Other | 40th Asilomar Conference on Signals, Systems, and Computers, ACSSC '06 |
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Country | United States |
City | Pacific Grove, CA |
Period | 10/29/06 → 11/1/06 |