Abstract

Abstract In this paper, we proposed a method using the user mobile device to overcome the interference constraint without building a cooperative communication system. In addition, in order to mitigate interference, we apply the user mobile device selection method, and then exploit power allocation scheme in the user mobile device. The proposed protocol is analyzed in the Rayleigh fading environment, and the performance system is evaluated in terms of the bit error rate and the outage probability. The simulation results showed that when the proposed transmission algorithm is applied, the interference can be mitigated. Further, network overload problems can be solved in the weak channel interference. Therefore, we can increase the network capacity without additional relay. Key Words : Cooperative Communication, Relay Using Scheme, Decode and Forward, Maximum Ratio Combining, Interference Mitigation * 준회원, 울산대학교 전기공학부 ** 정회원, 울산대학교 전기전자정보시스템공학부(교신저자)접수일자 : 2014년 6월 5일, 수정완료 : 2014년 7월 2일게재확정일자 : 2014년 8월 8일Received: 5 June, 2014 / Revised: 2 July, 2014 Accepted: 8 August, 2014

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