Uplink Performance of Conventional and Massive MIMO Cellular Systems with Delayed CSIT

被引：0

作者：

Papazafeiropoulos, Anastasios K. ^{[1
]}

Hien Quoc Ngo ^{[2
]}

Matthaiou, Michail ^{[3
,4
]}

Ratnarajah, Tharmalingam ^{[5
]}

机构：

[1] Imperial Coll London, Commun & Signal Proc Grp, London, England

[2] Linkoping Univ, ISY, Dept Elect Engn, Linkoping, Sweden

[3] Queens Univ Belfast, Sch Elect Elect Engn & Comp Sci, Belfast, Antrim, North Ireland

[4] Chalmers Univ Technol, Dept Signals & Syst, Gothenburg, Sweden

[5] Univ Edinburgh, Inst Digital Commun IDCoM, Edinburgh, Midlothian, Scotland

来源：

2014 IEEE 25TH ANNUAL INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR, AND MOBILE RADIO COMMUNICATION (PIMRC) | 2014年

关键词：

WIRELESS;

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：

This work studies the uplink of a cellular network with zero-forcing (ZF) receivers under imperfect channel state information at the base station. More specifically, apart from the pilot contamination, we investigate the effect of time variation of the channel due to the relative users' movement with regard to the base station. Our contributions include analytical expressions for the sum-rate with finite number of BS antennas, and also the asymptotic limits with infinite power and number of BS antennas, respectively. The numerical results provide interesting insights on how the user mobility degrades the system performance which extends previous results in the literature.

引用

页码：601 / 606

页数：6

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