Title :
Power efficiency of user cooperation in multihop wireless networks
Author :
Catovic, Amer ; Tekinay, Sirin
Author_Institution :
Qualcomm Inc., San Diego, CA, USA
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;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2005.1576579
