Reverse-link Macrodiversity in CDMA Distributed Antenna Systems with Imperfect Channel Estimation

被引：0
|
作者：
Chen, Peng [1 ]
Fu, Jing-Xing [1 ]
Kim, Young-Hak [2 ]
Park, Yun-Sang [2 ]
机构：
[1] Beijing Samsung Telecom R&D Ctr, Wireless Adv Res Grp, Beijing, Peoples R China
[2] Samsung Elect Corp, Wibro Technol Labs, Suwon, South Korea
来源：
2006 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE (WCNC 2006), VOLS 1-4 | 2006年
关键词：
distributed antenna system; reverse-link; imperfect channel estimation; macrodiversity; multi-path fading;
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
The performance of reverse-link macrodiversity in CDMA distributed antenna (DA) systems with imperfect channel estimation is analyzed by taking the effect of multi-path fading environment into account. A detailed multi-access model with MRC-based multi-path microdiversity and multi-antenna macrodiversity is presented and exact reverse-link E-b/I-0 expression is derived. The investigation shows that when multi-path fading and channel estimation errors occur, for the reverse-link of CDMA DA systems, the E-b/I-0 performance degrades and the macrodiversity gains diminish more rapidly in comparison with the results obtained based on the ideal assumption. Furthermore, it is shown that, on the reverse-link, the conventional solution recommended in most of previous studies that the number of remote antennas per "virtual cell" set to four is no longer cost-effective in such an imperfect environment.
引用
收藏
页码：1899 / 1903
页数：5
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