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Power allocation in multi-node cooperative network in Rician fading channels

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Details

Original languageEnglish
Title of host publication2012 IEEE 8th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob 2012
Pages496-501
Number of pages6
DOIs
Publication statusPublished - 2012
Publication typeA4 Article in a conference publication
Event2012 IEEE 8th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob 2012 - Barcelona, Spain
Duration: 8 Oct 201210 Oct 2012

Conference

Conference2012 IEEE 8th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob 2012
CountrySpain
CityBarcelona
Period8/10/1210/10/12

Abstract

Cooperative communications have been recommended to exploit the inherent spatial diversity gains in multiuser wireless systems without the need of multiple transceivers at each node. This is achieved when wireless nodes help to each other to send multiple independent transmission paths to the destination. The advantage of cooperation can be exploited significantly by allocating the power of the system optimally. Thus, in this paper we first derive the approximate symbol error rate (SER) for multi-node cooperative networks employing decode-and-forward (DF) protocol with a maximum ratio combining (MRC) at the receiving terminals in Racian fading channels. Using the approximated SER expression, optimal power allocation (OPA) scheme under different line-of-sight (LOS) scenarios is investigated. Numerical and simulation results are presented to illustrate the performance improvement due to OPA of the cooperative networks.

Keywords

  • Cooperative, decode-and-forward, multi-node, optimal power allocation, Rician fading, SER analysis