NDLI: Multiuser Two Way Relaying Schemes in the Future Cellular Network

Content Provider	IEEE Xplore Digital Library
Author	Duckdong Hwang Suk-Gi Hong Tae-Jin Lee
Copyright Year	2002
Abstract	We propose a set of multiuser two-way relay beam-forming schemes in the cellular network. While the previous schemes are applicable only when there exist a single base station (BS) and a single relay station (RS) with the same number of antennas, multiple BSs or multiple RSs can exist in the proposed scheme without such restriction on the numbers of antennas. The degree of freedoms (DoF) achievable are analyzed and conditions to achieve these DoF values are presented. Both the decode-and-forward (DaF) protocol and amplify-and-forward (AaF) protocol are considered. It turns out that the channel alignment and the interference alignment in the multi-cell environment act the key roles in the development. We also provide an interference alignment scheme in the multi-cell environment that improves the achievable DoF values upon those of the previous schemes. The simulation results corroborate that the proposed beam-forming works as analyzed.
Starting Page	5200
Ending Page	5207
Page Count	8
File Size	369807
File Format	PDF
ISSN	15361276
Volume Number	12
Issue Number	10
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Protocols Vectors Interference Antennas Relays MIMO Decoding degree of freedom Two-way relaying cellular network multiple antennas multi-user
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Electrical and Electronic Engineering Computer Science Applications

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