摘要
为了使无线通信系统中数据的传输快速可靠,需要采用自动重发请求(ARQ)和前向纠错码(FEC)相结合的混合自动重发请求(HARQ)技术。针对星座映射中比特符号产生可靠性差异,提出一种自适应星座重组的新型HARQ方案。仿真结果表明,该新型HARQ方案具有降低系统误码率和时延,提高系统性能的优点。
The reliability of data transmission in wirless communication system is improved using HARQ scheme with Automatic Repest Request（ARQ） and Forward Error Correction（FEC）. Because of the differences of bit reliabilities with in a symbol,this paper presents a novel HARQ scheme with adaptive constellation rearrangement. Simullations show that the proposed scheme reduces the bit error rate and the transmission delay and improves the performance of the system.
出处
《现代电子技术》
2007年第19期57-59,68,共4页
Modern Electronics Technique
基金
中兴通讯股份有限公司基金项目(No.050501D2)
合肥市科技局基金项目(No.040505D2)
