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http://dx.doi.org/10.7840/kics.2012.37C.8.645

Symbol Error Probability of a Physical Layer Network Coded System in Nakagami Fading Channels  

Do, Phu Thinh (경희대학교 전자.전파공학과 디지털통신연구실)
Wang, Jin-Soo (경희대학교 전자.전파공학과 디지털통신연구실)
Park, Jin-Bae (경희대학교 전자.전파공학과 디지털통신연구실)
Kim, Yun-Hee (경희대학교 전자.전파공학과 디지털통신연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.37, no.8C, 2012 , pp. 645-654 More about this Journal
Abstract
In this paper, we consider a two-way relay (TWR) system, where two user nodes exchange their information within two transmission phases, by the help of a relay node adopting physical layer network coding. In the system, two users transmit their binary phase shift keying symbols simultaneously in the first phase, and the relay node decodes the XORed version of two user data and broadcasts it back to two users in the second phase. The performance of the system is analyzed in terms of the average end-to-end symbol error probability in Nakagami-m fading channels, for which a tight upper bound is derived in a closed form to provide an accurate and handy estimate on the performance. The results show that our upper bounds are almost indistinguishable from simulation results for various channel and system configurations. In addition, the optimal relay location and power allocation for various conditions can be obtained quickly with our analysis.
Keywords
양방향 릴레이;물리계층 네트워크 부호화;나카가미 페이딩;심볼 오류율;감마 확률변수;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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