Optimum pilot symbol assisted modulation

被引：23

作者：

Chen, Yunfei ^{[1
]}

Beaulieu, Norman C.

机构：

[1] Univ Warwick, Sch Engn, Coventry CV4 7AL, W Midlands, England

[2] Univ Alberta, Dept Elect & Comp Engn, Edmonton, AB T6G 2V4, Canada

来源：

IEEE TRANSACTIONS ON COMMUNICATIONS | 2007年 / 55卷 / 08期

关键词：

fading channels; optimum detection; pilot symbol assisted modulation (PSAM);

D O I：

10.1109/TCOMM.2007.902553

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Optimum detectors for pilot symbol assisted modulation (PSAM) signals in Rayleigh and Rician fading channels are derived. Conventional PSAM as used on Rayleigh fading channels is also employed on Rician fading channels. It is shown that the conventional PSAM receiver is optimal for binary phase shift keying in Rayleigh fading but suboptimal for Rician fading and suboptimal for 16-ary quadrature amplitude modulation in Rayleigh fading. The optimum PSAM signal detector uses knowledge of the specular component and also jointly processes the pilot symbols and the data symbol. The performance of the optimum detector is analyzed and compaied with that of the conventional detector. It is concluded that substantial gains can be achieved by exploiting knowledge of the specular component while joint processing of the data symbol with the pilot symbols may offer small benefits.

引用

页码：1536 / 1546

页数：11

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