一种基于NC-MIF在双向中继系统中进行转发的方法

A Novel Forward Scheme of NC-MIF Protocols in Two-way Relay Channel

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。

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.