Distributed Space-Time Block Coded OFDM with Subcarrier Grouping

被引：0
|
作者：
Vien, Nam H. [1 ]
Nguyen, Ha H. [1 ]
Tho Le-Ngoc [2 ]
机构：
[1] Univ Saskatchewan, Dept Elect & Comp Engn, 57 Campus Dr, Saskatoon, SK S7N 5A9, Canada
[2] McGill Univ, Dept Elect & Comp Sci, Montreal, PQ H3A 2A7, Canada
来源：
68TH IEEE VEHICULAR TECHNOLOGY CONFERENCE, FALL 2008 | 2008年
关键词：
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
It has been shown that relaying systems can offer spatial and multipath diversity in amplify-and-forward (AF) relay-assisted transmission over frequency-selective fading channels when trellis coded modulation (TCM) is applied as an outer code. However, the price for such advantages is the high decoding complexity. To overcome this disadvantage, the technique of subcarrier grouping is applied for orthogonal frequency division multiplexing (OFDM)-based relaying systems. If there exists a strong line-of-sight path in the relay-to-destination link, it is shown that the system can achieve both maximal spatial and multipath diversity gains. When all the underlying channels are frequency-selective, simulation results indicate that the full spatial and multipath diversity gains can also be realized.
引用
收藏
页码：946 / 950
页数：5
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