Implementation and experimental results of a three-transmitter three-receiver OFDM/BLAST testbed

被引：15

作者：

Xiang, WD ^{[1
]}

Waters, D ^{[1
]}

Pratt, TG ^{[1
]}

Barry, J ^{[1
]}

Walkenhorst, B ^{[1
]}

机构：

[1] Georgia Inst Technol, Atlanta, GA 30332 USA

来源：

IEEE COMMUNICATIONS MAGAZINE | 2004年 / 42卷 / 12期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1109/MCOM.2004.1367560

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：

A three-transmitter three-receiver orthogonal frequency-division multiplexing Bell Laboratories layered space-time testbed is set up, which achieves a peak data rate of 281.25 Mb/s and a spectral efficiency of 14.4 b/Hz/s. The transmitter of the testbed consists of three signal generators transmitting three independent OFDM signals at 25 Msamples/s synchronously. Three synchronized receiving links are used, each of which includes an RF receiver, an analog-to-digital converter, a digital downconverter, and a PowerPC processor for baseband processing. The performance and complexity of three typical BLAST detection techniques (linear detection, ordered decision feedback detection, and partial decision detection) are evaluated and compared using the data from the experiments conducted in both line-of-sight and non-line-of-sight indoor environments.

引用

页码：88 / 95

页数：8

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