标题：DF-AF selection MIMO relaying with orthogonal space-time block codes in wireless networks
作者：Zhang, Tian ;Chen, Wei ;Zhang, Wei ;Cao, Zhigang
作者机构：[Zhang, Tian ] School of Information Science and Engineering, Shandong University, Jinan 250100, China;[Zhang, Wei ] School of Electrical Engineering 更多
会议名称：2013 IEEE/CIC International Conference on Communications in China, ICCC 2013
会议日期：12 August 2013 through 14 August 2013
来源：2013 IEEE/CIC International Conference on Communications in China, ICCC 2013
摘要：DF-AF selection MIMO relaying, where the relay equipped with multiple antennas can adaptively switch between decode-and-forward (DF) protocol and amplify-and-forward (AF) protocol according to its decoding state of the source message, is investigated in cooperative networks. We consider orthogonal space-time block coded transmission for a DF-AF selection MIMO relaying system in Rayleigh fading environment, and a closed-form expression of the outage probability valid at arbitrary SNR is derived. In addition, the diversity order is obtained based on the expression. We also obtain the closed-form expressions of the outage probability and the diversity order for AF MIMO relaying scheme and DF MIMO relaying scheme. Theoretical analysis which has been further verified through Monte-Carlo simulations demonstrates that DF-AF selection MIMO relaying has better outage performance than AF MIMO relaying and DF MIMO relaying. © 2013 IEEE.