Title :
Error Probability and Power Allocation Analysis of Cooperative Relay Networks over Nakagami-q (Hoyt) Fading Channels
Author :
Fikadu, Mulugeta K. ; Valkama, Mikko
Author_Institution :
Dept. of Electron. & Commun. Eng., Tampere Univ. of Technol., Tampere, Finland
Abstract :
In this paper, we first derive the approximate symbol-error-rate (SER) for multi-node dual-hop cooperative relay network employing decode-and-forward (DF) protocol with a maximum ratio combining (MRC) at the destination terminal over generalized Nakagami-q (Hoyt) fading channels at high signal to noise ratio (SNR) using the moment generating function (MGF) approach. Using this approximated SER expression, optimal power allocation (OPA) scheme under different Hoyt parameters (qij) is developed and investigated. Finally, simulation results are presented to illustrate the performance improvement and power savings due to OPA in the considered cooperative system.
Keywords :
Nakagami channels; cooperative communication; decode and forward communication; diversity reception; error statistics; protocols; relay networks (telecommunication); DF protocol; Hoyt fading channels; Hoyt parameters; MGF approach; MRC; OPA scheme; SER; approximated SER expression; cooperative relay networks; decode-and-forward protocol; destination terminal; error probability; generalized Nakagami-q fading channels; maximum ratio combining; moment generating function approach; multinode dual-hop cooperative relay network; optimal power allocation scheme; power savings; signal-to-noise ratio; symbol-error-rate; Approximation methods; Cooperative systems; Decoding; Fading; Relays; Resource management; Signal to noise ratio;
Conference_Titel :
Vehicular Technology Conference (VTC Fall), 2013 IEEE 78th
Conference_Location :
Las Vegas, NV
DOI :
10.1109/VTCFall.2013.6692194
