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Capacity Bound for Discrete Memoryless User-Relaying Channel

Authors
Moon, Ki-RyangYoo, Do-SikOh, Seong-Jun
Issue Date
23-3월-2012
Publisher
KSII-KOR SOC INTERNET INFORMATION
Keywords
User-relay; relay channel; channel capacity; channel state information; CSI; Cognitive radio
Citation
KSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS, v.6, no.3, pp.855 - 868
Indexed
SCIE
SCOPUS
KCI
OTHER
Journal Title
KSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS
Volume
6
Number
3
Start Page
855
End Page
868
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/108966
DOI
10.3837/tiis.2012.03.005
ISSN
1976-7277
Abstract
In this paper, we consider the discrete memoryless user relaying channel (DMURC) in which a user-relay switches its operational mode symbol-by-symbol. In particular, we obtain upper and lower bounds on the channel capacity for the general DMURC and then show that these the upper and lower bounds coincide for degraded DMURC. It is also shown that the capacity of the degraded DMURC can be achieved using two separate codebooks corresponding to the two UR states. While the UR is assumed to switch states symbol-by-symbol, the results in this paper is the same as when the UR switches states packet-by-packet.
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