NDLI: Low complexity per-antenna rate and power control approach for closed-loop V-BLAST

Content Provider	IEEE Xplore Digital Library
Author	Hairuo Zhuang Lin Dai Shidong Zhou Yan Yao
Copyright Year	1972
Abstract	Previous studies have shown that per-antenna rate and power control can greatly increase the data throughput of vertical Bell Labs layered space-time (V-BLAST), while an extra transmit antenna selection can provide additional diversity advantage. We combine the transmit antenna selection with power and rate control for each antenna. We derive a simple criterion for minimum bit-error rate (BER) or minimum total transmit power when the data throughput is constant over time. Zero-forcing and zero-forcing successive interference cancellation detections are considered. For practical implementation, we also present a fast algorithm that gives near-optimal performance with very low complexity. Simulation results show that the proposed closed-loop BLAST outperforms the open-loop V-BLAST significantly in terms of BER performance, especially when the antennas exhibit strong fading correlations.
Starting Page	1783
Ending Page	1787
Page Count	5
File Size	410443
File Format	PDF
ISSN	00906778
Volume Number	51
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power control Transmitting antennas Bit error rate Throughput MIMO Fading Information rates Interference cancellation Modulation coding Adaptive arrays
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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