Cooperative Diversity through Network Coding in Satellite Communications
This paper proposes a novel network-coded cooperation scheme in mobile satellite communication system. The scenario under consideration is one which two partner-Terminal A and Terminal B- cooperate in transmitting information to a single destination; Each partner transmits both locally generated information and adaptive information that is formed based on the observed information from the other partner. A key observation is that when one partner knows the other partners local information, it can exploit that knowledge in the next transmission to improve the BER of the System. This leads to an encoding scheme in which each partner transmits the algebraic superposition of its local and the other information, and the superimposed codeword is interpreted differently at the two partners based on their different a priori knowledge. Decoding at the destination is then carried on by iterating between the codewords from the two partners. Theoretical analysis and experimental simulation show that cooperative scheme with network coding is better than conventional cooperative scheme.
network coding cooperative diversity system outage
Wei Sun Geng-xin Zhang
Institute of Communications Engineering PLA University of Science and Technology Nanjing, China
国际会议
海口
英文
28-32
2011-07-15（万方平台首次上网日期，不代表论文的发表时间）