Turbo Network Coding for Ef.cient and Reliable Relay

摘要：

A turbo network coding based relay model and its decoding method are proposed for the quasi-static fading multiaccess up-link channel. In the model a relay assists two mobile nodes simultaneously by forwarding a network coded version of the two interleaved messages. Access Point (AP) performs joint channel and network decoding with signals received from two mobile nodes and the relay. Compared with existing schemes, the proposed turbo network coding scheme has two main contributions: (i) Only parity check bits of two messages are forwarded by relay and they are further XORed together to improve relay efficiency. (ii) The iterative decoding is used in joint network and channel decoding to salvage packets from erroneous signals in the absence of a priori knowledge. Simulation results indicate that the proposed scheme provides up to 1.8dB gain to the existing scheme in the case of mutual cooperation among mobile nodes.

作者: Suhua TANG Jun CHENG Chen SUN Ryutaro SUZUKI Sadao OBANA

作者单位: ATR Adaptive Communications Research Laboratories,Japan ATR Wave Engineering Laboratories,Japan

会议类型: 国际会议

会议名称: The 11th IEEE International Conference on Communications Systems(第11届电子和电气工程师协会国际通信系统会议)(IEEE ICCS 2008)

会议地点: 广州

会议语种:英文

在线出版日期: 2008-11-19（万方平台首次上网日期，不代表论文的发表时间）