IEIE Transactions on Smart Processing and Computing
- Volume 2 Issue 2
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- Pages.67-76
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- 2013
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- 2287-5255(eISSN)
Outage Probability of Device-to-Device MIMO Relay Systems with Imperfect Channel Estimation
- Wei, Liang wu (School of Communication and Information Engineering, Nanjing University of Posts and Telecommunication) ;
- Shao, Shi Xiang (Jiangsu Key Laboratory of Radio Communication, Nanjing University of Posts and Telecommunication)
- Received : 2012.12.26
- Accepted : 2013.04.25
- Published : 2013.04.30
Abstract
Under an imperfect channel estimation, a Device-to-Device (D2D) communication framework based on MIMO relay technology is presented. The model consists of a D2D pair equipped with M antennas and a relay equipped with N antennas as well as a cellular user equipped with M antennas. The outage probability under different relaying protocols (i.e. AF and DF protocol) with and without considering a direct link was derived. The actual and theoretical outage probability of the five links under different antenna numbers was emulated. The number of user antennas and channel estimation error was analyzed carefully to determine their impact on the outage probability of a system. The simulation verified the theory analyses and the results showed that MIMO relaying improves the D2D communication system performance.