Power efficiency of user cooperation in multihop wireless networks

Author

Catovic, Amer ; Tekinay, Sirin

Author_Institution

Qualcomm Inc., San Diego, CA, USA

Volume

9

Issue

12

fYear

2005

Firstpage

1034

Lastpage

1036

Abstract

In this paper we analyze the power efficiency of a user cooperation scheme for multihop wireless networks. In this scheme, the signals are jointly transmitted by two mobile terminals (MTs), emulating transmit macro diversity. We derive the optimal transmit power assignments for the two transmitting MTs and quantify the power efficiency of the scheme. The results indicate that macro diversity by way of user cooperation can substantially reduce the total consumed power in multihop wireless networks for wide range of topologies of MTs and their distances.

Keywords

cellular radio; diversity reception; power consumption; radio networks; signal processing; telecommunication network topology; telecommunication terminals; macro diversity transmission; mobile terminal; multihop wireless network; network topology; power consumption; power efficiency; signal transmission; user cooperation scheme; Cellular networks; Diversity reception; Downlink; Fading; Intelligent networks; Network topology; Power engineering computing; Spread spectrum communication; Transmitters; Wireless networks;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2005.1576579

Filename

1576579