Performance Analysis of Cooperative Diversity on the Usage of Opportunistic Relay
Taewook Kim, Hyung-Yun Kong · 한국인터넷방송통신학회 논문지 · 2014
Abstract The data forwarding transmission is an important function of the relay in cooperative communication in wireless communication systems. However, additional relay cause the waste of power consumption and cost. Therefore, in this paper, we consider how to use the user mobile devices in stead of relays to deal with this problem. In this paper, we proposed the protocol that divide each relay into two states of idle and non-idle. The receiver has two functions of base station and user mobile device. In this case, it is possible that no additional cost, and improve the spectral efficiency and network capacity. We verified BER performance for the proposed protocol over Rayleigh fading through Monte-Carlo simulation. Key Words : Cooperative Communication, Relay Using Scheme, Decode and Forward, Maximum Ratio Combining * 준회원, 울산대학교 전기공학부 ** 정회원, 울산대학교 전기전자정보시스템공학부(교신저자)접수일자 2014년 5월 7일, 수정완료 2014년 6월 7일 게재확정일자 2014년 6월 13일Received: 7 May, 2014 / Revised: 7 June, 2014 Accepted: 13 June, 2014