open access

https://hdl.handle.net/2115/49039

Optimum transmit beamforming in an interactive wireless relay system with network coding

英語

2010-09

IEEE

2010 IEEE 21st International Symposium on Personal Indoor and Mobile Radio Communications (PIMRC)

2093-2098

Wireless relay is an essential technology to achieve a flexible network for ubiquitous communication. To improve throughput performance in the network, network coding (NC) has been proposed for a two-user relay node. NC is a concept encoding both users' data into one packet and multicasting it simultaneously. However, if the relay node has two or more antenna elements, antenna pattern control is additionally required to send the packet efficiently to both users. In this paper, we formulate several transmit-beamforming techniques in the interactive wireless relay system and compare the performance with each other and with non-NC systems. Numerical analysis has shown that the method maximizing the total capacity in NC provides the best performance.

会議発表論文

Accepted Manuscript

© 2010 IEEE. Reprinted, with permission, from Sakiko Matsuya, Julian Webber, Toshihiko Nishimura, Takeo Ohgane, and Yasutaka Ogawa, Optimum Transmit Beamforming in an InteractiveWireless Relay System with Network Coding, 2010 IEEE 21st International Symposium on Personal Indoor and Mobile Radio Communications (PIMRC), Sep. 2010. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of Hokkaido University products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.