Joint Network-Channel Coding For Two Single-Relay Channels
In large-scale wireless network,two users exchange information with two parallel relay.Considering the time-division channel without straight link,we present a joint network-channel coding method for this model,where convolutional coding is used at all nodes and network coding is used at two relay nodes.The network-channel coding of two relay nodes form a distributed turbo coding at two users simultaneously which can be iteratively decoded after the local information is separated.Moreover,according to different working environment,we propose two reference systems,making comparison simultaneously.Simulation results confirm the system with network-channel coding gets better PER performance compared to two reference systems,where network coding and channel coding are designed respectively.