KSII Transactions on Internet and Information Systems (TIIS)

  • 제6권3호
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  • Pages.855-868
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  • 2012
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  • 1976-7277(pISSN)
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  • 1976-7277(eISSN)
한국인터넷정보학회 (Korean Society for Internet Information)
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Capacity Bound for Discrete Memoryless User-Relaying Channel

  • Moon, Ki-Ryang (College of Information and Communications, Korea University) ;
  • Yoo, Do-Sik (School of Electronic and Electrical Engineering, Hongik University) ;
  • Oh, Seong-Jun (College of Information and Communications, Korea University)
  • 투고 : 2011.10.19
  • 심사 : 2012.02.13
  • 발행 : 2012.03.30
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초록

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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참고문헌

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