Title :
Best relay selection for underlay cognitive relaying networks over Weibull fading channels
Author :
Samarasekera, A. Chaminda J. ; Dac-Binh Ha ; Huu Khuong Nguyen
Author_Institution :
Blekinge Inst. of Technol., Karlskrona, Sweden
Abstract :
In this paper, the performance of underlay cognitive dual-hop decode-and-forward (DF) multi-relay networks with best relay selection (BRS) over independent identically distributed (i.i.d.) Weibull fading channels is evaluated. The maximum transmit power of the secondary network is governed by the maximum interference power that the primary networks´ receiver can tolerate. Specifically the closed-form outage probability (OP) with interference power constraints from the primary network is derived, using the statistical characteristics of the end-to-end signal-to-noise ratio (SNR). The analytical results have been verified by Monte-Carlo simulations.
Keywords :
Monte Carlo methods; Weibull distribution; cognitive radio; decode and forward communication; fading channels; probability; radiofrequency interference; relay networks (telecommunication); BRS; Monte Carlo simulations; SNR; Weibull fading channels; best relay selection; interference power constraints; outage probability; signal-to-noise ratio; underlay cognitive dual-hop decode-and-forward multirelay networks; Diversity reception; Interference; Signal to noise ratio; Weibull fading channels; Best relay selection; Cognitive relay networks; Cooperative spectrum sharing systems; Weibull fading channels;
Conference_Titel :
Computing, Management and Telecommunications (ComManTel), 2014 International Conference on
Conference_Location :
Da Nang
Print_ISBN :
978-1-4799-2904-7
DOI :
10.1109/ComManTel.2014.6825569
