Title :
Performance Analysis of Multi-branch Dual-hop Non-regenerative Fixed Gain Relay Systems in Nakagami-m Channels
Author :
Huynh, Hieu Q. ; Husain, Syed Imtiaz ; Yuan, Jinhong ; Suzuki, Hajime ; Taubman, D.S.
Author_Institution :
Univ. of New South Wales, Sydney, NSW
Abstract :
In this paper, we analyze the performance of a multi-branch dual-hop fixed gain relay system with maximal ratio combiner (MRC) at the destination operating over independent Nakagami-m fading channels. We first derive the probability density function (PDF) of the signal to noise ratio (SNR) of the relay branch, from which the exact closed form expressions for the moments of MRC´s output SNR are obtained. The average end-to-end SNR and the outage probability of the considered system is evaluated using moments based approach. Furthermore, assuming the independence among the relay branches, we also derive the closed form moment generating function (MGF) of the end-to-end SNR. The average bit error probability for several modulation schemes is numerically evaluated. Simulation results are pre.sented to verify the analytical results.
Keywords :
Nakagami channels; probability; radio repeaters; Nakagami-m channels; fading channels; maximal ratio combiner; moment generating function; multibranch dual hop nonregenerative fixed gain relay systems; outage probability; probability density function; Analytical models; Australia; Error probability; Fading; Performance analysis; Performance gain; Probability density function; Rayleigh channels; Relays; Signal to noise ratio; Dual-hop relay systems; Nakagami-m fading; average bit error probability; fixed gain; maximal ratio combining; outage probability;
Conference_Titel :
Communications Theory Workshop, 2009. AusCTW 2009. Australian
Conference_Location :
Sydney, NSW
Print_ISBN :
978-1-4244-3356-8
Electronic_ISBN :
978-1-4244-3357-5
DOI :
10.1109/AUSCTW.2009.4805603
