Trellis Coded Modulation With Pseudo Distance in Overloaded MIMO OFDM With Sphere Decoding

被引：0

作者：

Shubhi, Ilmiawan ^{[1
]}

Sanada, Yukitoshi ^{[1
]}

机构：

[1] Keio Univ, Dept Elect & Elect Engn, Yokohama, Kanagawa 2238522, Japan

来源：

2013 INTERNATIONAL SYMPOSIUM ON INTELLIGENT SIGNAL PROCESSING AND COMMUNICATIONS SYSTEMS (ISPACS) | 2013年

关键词：

Overloaded MIMO; Trellis-Coded Modulation; Sphere Decoding; Pseudo Distance; CHANNEL;

D O I：

暂无

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：

Efficient detection schemes for an overloaded multiple-input multiple-output (MIMO) system has been investigated recently. In previous literature, it has been shown that trellis coded modulation (TCM) can enhance system capability to separate signal streams at detection process in MIMO systems. However, the computational complexity remains high as a maximum likelihood detection (MLD) algorithm is used in the scheme. Thus, a sphere decoding (SD) algorithm with a pseudo distance (PD) is proposed in this paper. It is shown that the proposed scheme can reduce the number of distance calculations by about 98% for the transmission of 3 signal streams. In addition, the proposed scheme improves the bit error performance by about 2dB at the bit error rate of 10(-2).

引用

页码：579 / 584

页数：6

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