Capacity bound for discrete memoryless user-relaying channel

Ki Ryang Moon; Do Sik Yoo; Seong Jun Oh

doi:10.3837/tiis.2012.03.005

Capacity bound for discrete memoryless user-relaying channel

Ki Ryang Moon, Do Sik Yoo, Seong Jun Oh

Graduate School of Information Study

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Pages (from-to)	855-868
Number of pages	14
Journal	KSII Transactions on Internet and Information Systems
Volume	6
Issue number	3
DOIs	https://doi.org/10.3837/tiis.2012.03.005
Publication status	Published - 2012 Mar

Keywords

CSI
Channel capacity
Channel state information
Cognitive radio
Relay channel
User-relay

ASJC Scopus subject areas

Information Systems
Computer Networks and Communications

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