无线衰减信道中一种新的编码方式的应用  

The application of a new coding scheme in wireless fading channels

作　　者：刘雪飞[1] 庞伟正[1] 邹喻[1] 刘小平[1] 

机构地区：[1]哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨150001

出　　处：《应用科技》2007年第8期14-17,共4页Applied Science and Technology

摘　　要：针对用户或移动台高速移动时,信道性能很难达到预想的性能及稳定性问题,提出了一种新的在无线衰减信道下的无比率编码的编码模式.仿真验证表明,当在发射机发射过程中信道状态信息不可用时,此编码方式则显示出了很好的稳定性和可靠性.实践证明,此无比率编码方式对克服传输损耗和提高码率方面都很有效.Wireless communication has seen the tremendous progress in technology in the last few years. When the users are moving at high speeds, the channel behaviors cannot reach the prescribed performance and stability. Here a new coding mode is proposed for wireless fading channels based on rateless coding. The simulation indicates that, when the state information of channels is not available, this coding mode displays good stability and reliability. This paper concludes that the rateless coding mode is effective in withstanding the transmission loss and in raising the coding rate.

关 键 词：无线衰减信道 无比率编码 定比率编码 多人多出系统 Fountain编码 

分 类 号：TN911.2[电子电信—通信与信息系统]