A new dual M-ary orthogonal modulation scheme

被引：0
|
作者：
Wei, SQ [1 ]
Cheng, YP [1 ]
Wang, JL [1 ]
机构：
[1] PLAUST, Inst Commun Engn, Nanjing 210007, Peoples R China
来源：
2004 7TH INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING PROCEEDINGS, VOLS 1-3 | 2004年
关键词：
signal detection; quasi-orthogonal sequence; Hadamarad matrix; Maximum-Likelihood (ML) criterion;
D O I：
暂无
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
A new modulation scheme called Dual M-ary Orthogonal Modulation (DMOM) is proposed in this paper By simultaneously sending one orthogonal sequence through the in-phase branch and the quadrature branch, respectively, this scheme can double the bandwidth efficiency of M-ary orthogonal modulation for a given sequence length M meanwhile keeps a constant envelope. A ML-based noncoherent detection algorithm and its simplified version are also presented for the demodulation. Finally, the BER performance and computation cost of DMOM are compared with those of the existed QOM.
引用
收藏
页码：1890 / 1893
页数：4
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