关键词: 协作通信, 网络编码, 增量中继, 中断概率, 资源消耗

Abstract: The existing network coding applied to wireless communication system uses a fixed way to relay. Therefore, a new cooperation mechanism was proposed: Network CodingIncremental Relay (NC-IR). The relay node decided whether to forward according to the two users’ sending status of the direct passing path. That is, if both of the direct passing paths or neither of them were successful while sending users’ data, the relay node did not forward data, and if only one of the direct passing path were successful while sending users’ data, the relaying node forwarded the data by network coding. The simulation shows that this cooperation mechanism saves a lot of time slot, power and bandwidth resources without affecting the system performance.

Key words: Cooperative Communication, Network Coding, Incremental Relay, Outage Probability, Resource Consumption