Multiuser diversity in delay-limited cellular wideband systems

被引：2

作者：

Caire, Giuseppe ^{[1
]}

Muller, Ralf ^{[2
]}

Knopp, Raymond ^{[3
]}

机构：

[1] Univ Southern Calif, Los Angeles, CA 90089 USA

[2] Norwegian Univ Sci & Technol, Trondheim, Norway

[3] Eurecom Inst, Sophia Antipolis, France

来源：

2006 INTERNATIONAL ZURICH SEMINAR ON COMMUNICATIONS: ACCESS - TRANSMISSION - NETWORKING, PROCEEDINGS | 2006年

关键词：

D O I：

10.1109/IZS.2006.1649109

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

We consider the uplink and the downlink of a multhiser wireless system with one base station and K user terminals. Each user is affected by a propagation path loss, fixed in time, and by a slowly time-varying frequency-selective fading channel, modeled as M parallel block-fading channels. We investigate "multiuser diversity", i.e., the gain achieved by a multiuser system over a single-user system. In particular, we compare "delay-limited" systems with "delay-tolerant" systems based on Proportional Fair Scheduling. Our analysis allows us to quantify the loss incurred by a strict delay constraint in a cellular environment, for given M, K and channel statistics.

引用

页码：178 / +

页数：2