Great expectations: The value of spatial diversity in wireless networks

被引：159

作者：

Diggavi, SN ^{[1
]}

Al-Dhahir, N ^{[1
]}

Stamoulis, A ^{[1
]}

Calderbank, AR ^{[1
]}

机构：

[1] AT&T Labs Res, Shannon Lab, Florham Pk, NJ 07932 USA

来源：

PROCEEDINGS OF THE IEEE | 2004年 / 92卷 / 02期

关键词：

Ad hoc networks; channel estimation; diversity; fading channels; hybrid networks; information theory for wireless communications; multiple-antenna communications; multiuser diversity; real-time applications; resource allocation; scheduling; signal processing for communications; space-time coding (STC); transport protocols; wireless networks;

D O I：

10.1109/JPROC.2003.821914

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：

In this paper the effect of spatial diversity on the throughput and reliability of wireless networks is examined. Spatial diversity is realized through multiple independently fading transmit/receive antenna paths in single-user communication and through independently fading links in multiuser communication. Adopting spatial diversity as a central theme, we start by studying its information-theoretic foundations, then we illustrate its benefits across the physical (signal transmission/coding and receiver signal processing) and networking (resource allocation, routing, and applications) layers. Throughout the paper we discuss engineering intuition and tradeoffs, emphasizing the strong interactions between the various network functionalities.

引用

页码：219 / 270

页数：52

共 290 条

[1] Power-conscious design of wireless circuits and systems [J].