NDLI: A "Relay Node Division Duplex" Relaying Approach for MIMO Relay Networks

Content Provider	IEEE Xplore Digital Library
Author	Hui Shi Asai, T. Yoshino, H.
Copyright Year	2006
Description	Author affiliation: Wireless Lab., NTT DoCoMo, Inc., Yokosuka (Hui Shi; Asai, T.; Yoshino, H.)
Abstract	Recent advances in information theory have shown that the use of multiple nodes to simultaneously relay messages can further improve the capacity of source-to-destination communication. This has spurred interest in relay networks as a promising coverage extension technique. Many papers have explored the half duplex approach. This approach however limits the capacity since two time slots are required to send each message from source to destination node. To achieve higher capacity, we introduce the "relay node division duplex (RNDD)" approach, in which multiple relay nodes are divided into two groups that alternatively receive and transmit messages: while one group is receiving messages from the source node, the other is transmitting messages to the destination node. A difficulty of applying RNDD is that when the interference between the two relay groups is severe, the capacity will be greatly degraded. Therefore, we also propose a relay scheme that cancels the interference between relay groups by generating replicas of the interference from previously received signals at the destination node. Numerical results confirm that our method outperforms the conventional schemes that use the half duplex approach
Sponsorship	IEEE COM
Starting Page	1
Ending Page	5
File Size	400633
Page Count	5
File Format	PDF
ISBN	1424403294
DOI	10.1109/PIMRC.2006.254153
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-09-11
Publisher Place	Finland
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Relays MIMO Degradation Interference cancellation Base stations Wireless networks Land mobile radio Mobile communication Laboratories Information theory
Content Type	Text
Resource Type	Article

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