The impact of antenna diversity in packet data systems with scheduling

被引：10

作者：

Viswanathan, H

Venkatesan, S

机构：

[1] Bell Labs, Lucent Technol, Murray Hill, NJ 07974 USA

[2] Bell Labs, Lucent Technol, Holmdel, NJ 07733 USA

来源：

IEEE TRANSACTIONS ON COMMUNICATIONS | 2004年 / 52卷 / 04期

关键词：

multiuser diversity; packet data; scheduling; transmit diversity;

D O I：

10.1109/TCOMM.2004.826411

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：

It has been observed through simulations of some specific scheduling algorithms that multiuser diversity gains in packet data systems with channel-aware scheduling can be reduced in the presence of any form of link diversity, such as transmit antenna diversity or wideband multipath diversity. We establish that asymptotically, in the limit of large number of transmit antennas and users, the maximum throughput achieved by any optimal scheduling algorithm in the presence of transmit diversity under signal-to-noise-ratio-only feedback can be infinitely worse than that of a system with no diversity. Our results are general and are independent of any particular scheduling algorithm.

引用

页码：546 / 549

页数：4

共 10 条

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