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Achievable Degree of Freedom on K-User Y Channels with Heterogeneous Messages

Authors
Lee, KwangwonLee, NamyoonLee, Inkyu
Issue Date
2월-2013
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Keywords
Degree of freedom; Y channels
Citation
IEEE COMMUNICATIONS LETTERS, v.17, no.2, pp.333 - 336
Indexed
SCIE
SCOPUS
Journal Title
IEEE COMMUNICATIONS LETTERS
Volume
17
Number
2
Start Page
333
End Page
336
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/104158
DOI
10.1109/LCOMM.2012.120612.122344
ISSN
1089-7798
Abstract
In this letter, we introduce a new system model for a multi-way communication where multiple users exchange information with each other by sharing an intermediate relay with multiple antennas. Particularly, we focus on the system where each user intends to send multiple unicast messages for dedicated users and a single multicast message for a group of users. We refer to this system as a K-user MIMO Y channel with heterogenous messages. For this channel, we propose a new cooperative beamforming method and study an achievable degree of freedom (DOF) using this scheme.
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공과대학 (전기전자공학부)
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