On the Orthogonality of Signal Tones in SFH/MFSK Systems over Multipath Fading Channels

摘要：

In this paper, the effect of multipath fading on orthogonality of signal tones in slow frequency-hopping communication system using M-ary frequency-shift keying modulation with non-coherent demodulation (SFH/MFSK) is analyzed. A general expression of orthogonality loss factor Djnl is derived, which is determined not only by multipath delays, signal strength fading and synchronization time error, but also by phase variation caused by multipath delays. The results obtained here are also more general than that of traditional FH system which transmits only one symbol per hop. Numerical results demonstrate that the effects vary greatly with different phase variations.

关键词： orthogonality SFH/MFSK time synchronization multipath fading phase variation.

作者: Xiaoning Wang Pingzhi Fan Daiyuan Peng

作者单位: Provincial Key Lab of Information Coding andTransmission,Institute of Mobile Communications,Southwest Jiaotong University,Chengdu,610031,China

会议类型: 国际会议

会议名称: The IET 2nd International Conference on Wireless,Mobile & Multimedia Networks(第二届IET国际无线移动多媒体网络会议)

会议地点: 北京

会议语种:英文

在线出版日期: 2008-10-12（万方平台首次上网日期，不代表论文的发表时间）