An algorithm for wireless relay placement

Author

Cannons, Jillian ; Milstein, Laurence B. ; Zeger, Kenneth

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of California, La Jolla, CA, USA

Volume

8

Issue

11

fYear

2009

fDate

11/1/2009 12:00:00 AM

Firstpage

5564

Lastpage

5574

Abstract

An algorithm is given for placing relays at spatial positions to improve the reliability of communicated data in a sensor network. The network consists of many power-limited sensors, a small set of relays, and a receiver. For each sensor, the receiver receives a direct signal as well as an indirect signal from one of the available relays. The relays rebroadcast the transmissions in order to achieve diversity at the receiver. Both amplify-and-forward and decode-and-forward relay networks are considered. Channels are modeled with Rayleigh fading, path loss, and additive white Gaussian noise. Performance analysis and numerical results are given.

Keywords

Rayleigh channels; telecommunication network reliability; wireless sensor networks; Rayleigh fading; additive white Gaussian noise; amplify-and-forward relay networks; communicated data reliability; decode-and-forward relay networks; path loss; power-limited sensors; spatial positions; wireless relay placement; wireless sensor networks; Additive white noise; Decoding; Fading; Interference; Performance analysis; Rayleigh channels; Receivers; Relays; Telecommunication network reliability; Wireless sensor networks; Sensor network, cooperative communication, relay placement.;

fLanguage

English

Journal_Title

Wireless Communications, IEEE Transactions on

Publisher

ieee

ISSN

1536-1276

Type

jour

DOI

10.1109/TWC.2009.081036

Filename

5336783