A Study on Complex Field Network Coding Scheme for Wireless Relay System 


Vol. 36,  No. 4, pp. 241-253, Apr.  2011


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  Abstract

In this paper, a CFNC (Complex Field Network Coding) scheme is presented, which focuses on improving transmission efficiency by reducing time slots that are needed to exchange data frames. Conventional CFNC scheme has the advantage of minimizing the number of time slots required for information exchanges. However, there exists serious performance deterioration because the transmit signals are interfered with each other. Moreover, when CFNC scheme is applied, the estimation and compensation performance of fine frequency offset severely deteriorates due to the multiple frequency offsets in received signal of relay node. In order to overcome these critical problems, we propose an improved CFNC scheme with modified maximum likelihood decision method which uses uplink transmit diversity. Also, we propose an enhanced fine frequency offset estimation method and a corresponding compensation method to deal with the multiple frequency offsets. Corresponding simulation results verify that the proposed methods are able to effectively solve the problems of CFNC scheme.

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  Cite this article

[IEEE Style]

W. Hwang, J. Jang, H. Choi, "A Study on Complex Field Network Coding Scheme for Wireless Relay System," The Journal of Korean Institute of Communications and Information Sciences, vol. 36, no. 4, pp. 241-253, 2011. DOI: .

[ACM Style]

Won-Jun Hwang, Jun-Hee Jang, and Hyung-Jin Choi. 2011. A Study on Complex Field Network Coding Scheme for Wireless Relay System. The Journal of Korean Institute of Communications and Information Sciences, 36, 4, (2011), 241-253. DOI: .

[KICS Style]

Won-Jun Hwang, Jun-Hee Jang, Hyung-Jin Choi, "A Study on Complex Field Network Coding Scheme for Wireless Relay System," The Journal of Korean Institute of Communications and Information Sciences, vol. 36, no. 4, pp. 241-253, 4. 2011.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880