Power allocation for virtual MISO cooperative communication in wireless sensor networks

Author

Wan, Haitao ; Diouris, Jean-François ; Andrieux, Guillaume

Author_Institution

IREENA, Ecole Polytech. de l´´Univ. de Nantes, Nantes, France

fYear

2010

fDate

27-28 Sept. 2010

Firstpage

69

Lastpage

72

Abstract

Energy efficiency is an important factor for the deployment of wireless sensor networks. Cooperative communication can help to reduce energy consumption for long distance data transmission. This paper examines the optimal power allocation scheme for cooperative communication using Alamouti code in wireless sensor networks. The proposed power allocation scheme minimizes the total transmit power of two cooperative transmit nodes for a given bit error rate (BER) performance. The optimal transmit power can be approximated in analytical way and matches well with the precise result.

Keywords

codes; error statistics; wireless sensor networks; Alamouti code; bit error rate; data transmission; energy consumption reduction; energy efficiency; optimal power allocation scheme; virtual MISO cooperative communication; wireless sensor networks; Approximation methods; Bit error rate; Equations; Fading; Mathematical model; Resource management; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Technology Conference (EuWIT), 2010 European

Conference_Location

Paris

ISSN

2153-3644

Print_ISBN

978-1-4244-7233-8

Type

conf

Filename

5615240