A Novel Retransmission Strategy without Additional Overhead in Relay Cooperative Network
A new retransmission strategy in relay cooperative network is proposed in this paper. The strategy removes the additional resource consumption completely of the conventional retransmission, thus is termed “Retransmission with No Additional Overhead (RNAO). According to RNAO, who initiates and when to start the retransmission are both decided adaptively on the channel quality indicator. RNAO consumes no additional overhead for that the retransmitted packet can be transmitted with a new packet simultaneously by hierarchical modulation, and the strategy’s adaptive processing can guarantee that the new packet is sent without delay and its received quality also is not affected. Compared with the conventional strategy termed “Retransmission with Additional Overhead (RAO) here, both analysis and simulation results show that RNAO can effectively lower the outage probability in actual observational signal-to-noise- ratio (SNR) regions, and the performance of throughput is improved significantly in all SNR regions.
Shao Lan Wang Wenbo Long Hang Peng Yuexing
Wireless Signal Processing and Network Lab Key Laboratory of Universal Wireless Communication, Ministry of Education Beijing University of Posts and Telecommunications, Beijing China
国际会议
北京
英文
522-526
2009-10-27（万方平台首次上网日期，不代表论文的发表时间）