| The next generation communication system should focus on the greater capacity, the higher transmission efficiency and the more reliable transmission quality and performance. Based on improving the systm capability and declining its BER, the cooperation communication technology solves the problem about the Small volume mobile terminals successfully.Then as another important breakthrough in the communication network research field, the basic idea of the network coding technology is, in the communication network, allowing network nodes processing received messages, then forwarding. Not as the traditional communication network system, the intermediate nodes only simply duplicate and forward. According to some certain decoding algorithm, destination nodes translate source information and improve the whole network receiving rate by processing additional information.In order to improve the system performance, this paper mainly discusses how to using the network coding technology in the cooperation communication system. Firstly introduce three diversity technologies used in the wireless communication system, namely space diversity, time diversity, frequency diversity, and describe this three technologies'principle and realization condition. According to this content, the wireless network cooperation communication technology is presented. Through simulating this three cooperation communication mode, this paper analyzes the network performance improvement. Then represent the basic network encoding idea, focusing on the linear network coding and random network coding, and analyze the system performance improvemnt by applying the network coding to the cooperative diversity system. On this basis, emphatically introduce the linear network coding application in the cooperation communication. Simultaneously put forward the experimentation model and give the corresponding theoretical analysis.According to the research results, finally this paper establishes a new cooperation communication system, namely the network coding cooperation communication system based on the convolution code, and through two aspects—the theoretical analysis and experimental simulation, we analyze this system advantages, showing the enormous advantages about network coding using in the cooperation communication. |
