CAJ | 학술논문

探讨在双向中继系统（TWRC）中使用一种新型的互信息方式进行转发的方法，该系统在一个中继端的帮助下，完成两个源端之间的信息传输。根据来自两个源端的估计信息，中继端通过计算互信息，再分别转发到两个源端。特别的是，在这种互信息协议（MIF）中提出基于网络编码的互信息（NC-MIF）协议。然后比较了 NC-MIF 协议与传统协议在源端接收到的信息的信噪比（SNR）下的 BER 特性，通过仿真发现该协议在衰落信道中的 BER 表现要优于其它协议。
탐토재쌍향중계계통（TWRC）중사용일충신형적호신식방식진행전발적방법，해계통재일개중계단적방조하，완성량개원단지간적신식전수。근거래자량개원단적고계신식，중계단통과계산호신식，재분별전발도량개원단。특별적시，재저충호신식협의（MIF）중제출기우망락편마적호신식（NC-MIF）협의。연후비교료 NC-MIF 협의여전통협의재원단접수도적신식적신조비（SNR）하적 BER 특성，통과방진발현해협의재쇠락신도중적 BER 표현요우우기타협의。
This paper investigates a noveI forward scheme of soft mutuaI information forwarding (MIF) protocoIs in a two-way re-Iay channeI (TWRC),where two sources exchange the information with the heIp of an intermediate reIay.The reIay caIcuIates the soft mutuaI information and broadcasts it to each sources based on the estimated signaIs from the two sources.In par-ticuIar,we propose a MIF protocoI caI ed NC-MIF based on the network code.This paper compare the BER between NC-MIF and traditionaI protocoI depending on the received SNR at the sources.