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

页码：1899 / 1903

页数：5

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