TUTCRIS - Tampereen teknillinen yliopisto

TUTCRIS

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

Tutkimustuotosvertaisarvioitu

Yksityiskohdat

AlkuperäiskieliEnglanti
Otsikko2012 IEEE 8th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob 2012
Sivut496-501
Sivumäärä6
DOI - pysyväislinkit
TilaJulkaistu - 2012
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
Tapahtuma2012 IEEE 8th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob 2012 - Barcelona, Espanja
Kesto: 8 lokakuuta 201210 lokakuuta 2012

Conference

Conference2012 IEEE 8th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob 2012
MaaEspanja
KaupunkiBarcelona
Ajanjakso8/10/1210/10/12

Tiivistelmä

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.