摘要
目前随着硬件和编码技术的提升,逐渐成熟的多载波技术在通信过程中得到广泛的推广和应用。为了在较严重的多径衰落条件下获取更高的频谱利用效率,采用静态多抽头信道建模的方式对无线信号传播进行模拟。以信道冲击响应数据的误码率作为分析基础,设计了一种引进正交频分复用及多天线技术概念进行改良的多载波MFSK编码方案,并验证了在多径衰落条件下的频谱使用效率及误码率,从而证明了该方案在提高频谱效率方面的可行性。
In order to achieve high spectrum efficiency in the condition of serious multipath fading,a new multicarrier M-ary frequency shift keying（MFSK） channel coding scheme based on orthogonal frequency division multiplexing（OFDM） and single-input multiple-output（SIMO） technologies for wireless broadband communications is proposed.This paper gives the analysis based on BER and channel spectrum efficiency performance of 3-tap-delay-line wireless signal channel simulation model for several modified schemes.The data comparisons indicate that the new coding scheme is feasible and effective.
出处
《通信技术》
2011年第2期6-9,共4页
Communications Technology
关键词
多抽头信道模型
瑞利型多径衰落
频谱效率
multitap channel model
rayleigh multipath fading
spectrum efficiency
