Markov CAC model in Wireless Mobile Networks Using AMC 


Vol. 31,  No. 4, pp. 270-277, Apr.  2006


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  Abstract

In the wireless adaptive modulation and coding(AMC) systems, the modulation type of user's connection can be changed dynamically. and the ongoing connection might fail due to the change of modulation. In this paper, we approach the AMC-induced CAC problem by focusing on the guaranteed connection. Three kinds of calls, new, handoff, and modulation-changed calls, are considered. We propose a modified guard channel CAC scheme that allows the modulation-changed and handoff calls to use the guard channel. Then we analyze a Markov model for the CAC scheme with long-term AMC in mind. According to the simulation results, the proposed approach reduces the call dropping probability for modulation-changed calls, which suggests the threshold of guard channels can be determined based on the proposed approach.

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  Cite this article

[IEEE Style]

E. Kwon, H. Park, J. Lee, "Markov CAC model in Wireless Mobile Networks Using AMC," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 4, pp. 270-277, 2006. DOI: .

[ACM Style]

Eunhyun Kwon, Hyosoon Park, and Jaiyong Lee. 2006. Markov CAC model in Wireless Mobile Networks Using AMC. The Journal of Korean Institute of Communications and Information Sciences, 31, 4, (2006), 270-277. DOI: .

[KICS Style]

Eunhyun Kwon, Hyosoon Park, Jaiyong Lee, "Markov CAC model in Wireless Mobile Networks Using AMC," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 4, pp. 270-277, 4. 2006.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880