Title :
Outage probability for four relay selection in wireless relay networks
Author :
Manna, M.A. ; Chen, G. ; Chambers, J.A.
Author_Institution :
Adv. Signal Process. Group, Loughborough Univ., Loughborough, UK
Abstract :
In this paper we evaluate the outage probability in cooperative networks using the channel conditions in order to select the best four relays from a set of N relays and then the chosen relays are used for cooperation between the source and the destination. Expressions for outage probability are derived for a frequency flat Rayleigh-fading environment by using theoretic analysis of the probability function (PDF) and the cumulative density function (CDF) of the received signal-to-noise ratio (SNR). Simulation studies show the outage probability for different numbers of available relays N and the impact on system performance for different numbers of available relays N and the resultant diversity of the proposed modified quasi-orthogonal scheme.
Keywords :
Rayleigh channels; cooperative communication; probability; radio networks; channel conditions; cooperative networks; cumulative density function; frequency flat Rayleigh fading environment; outage probability; probability function; quasi orthogonal scheme; relay selection; signal to noise ratio; wireless relay networks; Diversity methods; Protocols; Rayleigh channels; Relays; Signal to noise ratio; Wireless communication;
Conference_Titel :
Software, Telecommunications and Computer Networks (SoftCOM), 2012 20th International Conference on
Conference_Location :
Split
Print_ISBN :
978-1-4673-2710-7
