naa a22 4500 510797989 CHVBK 20180411083343.0 cr unu---uuuuu 180411e20130901xx s 000 0 eng 10.1007/s11277-013-1000-8 doi (NATIONALLICENCE)springer-10.1007/s11277-013-1000-8 Performance Analysis of Generic Amplify-and-Forward Cooperative Networks over Asymmetric Fading Channels [Elektronische Daten] [Mohammadali Mohammadi, Zahra Mobini, Mehrdad Ardebilipour, Behrad Mahboobi] In this paper, we analyze the performance of multi-hop multi-branch amplify-and-forward (AF) networks over generalized fading channels. Using the moment generating function (MGF)-based approach, we develop general expressions for the outage probability and symbol-error rate (SER) performance of the system with maximal ratio combining (MRC) receiver. The MGF-based approach relies on numerical integration. To gain insights into system performance, we therefore investigate the asymptotic outage and SER performance of the system with MRC and selection combining (SC) receiver at the destination. In particular, we develop the asymptotic statistics of the end-to-end signal-to-noise ratio (SNR) of an AF multi-hop link. We further derive the cumulative density function of the sum of the individual end-to-end SNRs, received from different diversity paths for MRC receiver. We also study the power allocation problem in a multi-hop multi-branch system with MRC receiver. In generalized Gamma fading environments, we seek to find the power allocation strategy that maximizes the SNR at the destination subject to a total power constraint. By means of simulations, we validate our theoretical developments and verify the efficiency of our proposed power allocation in improving the received SNR compared to a generic cooperative system with no power allocation. We also conclude that our asymptotic expressions for the outage probability and SER match the simulations very well in medium-to-high-SNR regime. Springer Science+Business Media New York, 2013 Amplify-and-forward nationallicence Generalized fading channel nationallicence Multi-hop multi-branch system nationallicence Outage probability nationallicence Power allocation nationallicence Symbol-error rate nationallicence Mohammadi Mohammadali Faculty of Electrical and Computer Engineering, K. N. Toosi University of Technology, Tehran, Iran aut Mobini Zahra Faculty of Electrical and Computer Engineering, K. N. Toosi University of Technology, Tehran, Iran aut Ardebilipour Mehrdad Faculty of Electrical and Computer Engineering, K. N. Toosi University of Technology, Tehran, Iran aut Mahboobi Behrad Faculty of Electrical and Computer Engineering, K. N. Toosi University of Technology, Tehran, Iran aut Wireless Personal Communications Springer US; http://www.springer-ny.com 72/1(2013-09-01), 49-70 0929-6212 72:1<49 2013 72 11277 https://doi.org/10.1007/s11277-013-1000-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-013-1000-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mohammadi Mohammadali Faculty of Electrical and Computer Engineering, K. N. Toosi University of Technology, Tehran, Iran aut NATIONALLICENCE 700 1- Mobini Zahra Faculty of Electrical and Computer Engineering, K. N. Toosi University of Technology, Tehran, Iran aut NATIONALLICENCE 700 1- Ardebilipour Mehrdad Faculty of Electrical and Computer Engineering, K. N. Toosi University of Technology, Tehran, Iran aut NATIONALLICENCE 700 1- Mahboobi Behrad Faculty of Electrical and Computer Engineering, K. N. Toosi University of Technology, Tehran, Iran aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 72/1(2013-09-01), 49-70 0929-6212 72:1<49 2013 72 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer