NDLI: Space-time focusing transmission in ultra-wideband cooperative relay networks

Content Provider	IEEE Xplore Digital Library
Author	Yafei Tian Chenyang Yang
Copyright Year	2009
Description	Author affiliation: School of Electronics and Information Engineering, Beihang University, 37 Xueyuan Road, Haidian District, Beijing, China 100191 (Yafei Tian; Chenyang Yang)
Abstract	Space-time focusing transmission is a generalized form of beamforming in ultra-wideband (UWB) systems by exploiting the unique feature of UWB signals. It can obtain energy gain and can reduce interference to coexisting users, thus can extend the distance and increase the capacity of UWB communications. Cooperative relay can further extend the coverage of UWB systems. In this paper, we first propose ZF and MMSE prefiltering algorithms for space-time focusing transmission, and then propose a space-time focusing based cooperative relay scheme. The throughputs of broadcast mode and multiple access mode in the relay networks are derived, while their dependency on various system parameters is obtained. Numerical results show how many cooperative nodes are necessary to maximize the network throughput, and when the proposed prefiltering algorithms perform well.
Starting Page	353
Ending Page	358
File Size	265606
Page Count	6
File Format	PDF
ISBN	9781424429301
DOI	10.1109/ICUWB.2009.5288693
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-09
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Array signal processing Transmitting antennas Ultra wideband communication Interference Throughput Power system relaying Relays Delay Ultra wideband technology Power engineering and energy
Content Type	Text
Resource Type	Article

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