A Mathematical Model for Asymmetrical/Heterogeneous Traffic Management in TD-CDMA System 


Vol. 30,  No. 4, pp. 259-270, Apr.  2005


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  Abstract

This paper proposes a mathematical model to analyze call-and packet-level performance of the TD-CDMA/TDD system which could serve a flexible radio resource management against multi-type heterogeneous and asymmetrical traffic conditions. On call-level analysis, the mathematical model based on queueing theory performs multi-dimensional operations using random vectors or matrices to consider multiple types of traffic and also deal with asymmetrical up- and down-direction transmissions separately. Employing the mathematical model, we obtain call blocking probability for each type of traffic and also the optimum switching-point with the smallest call blocking probability. And on packet-level analysis, employing a non-prioritized queueing scheme between circuit and packet calls, we solve 2-dimensional random vector problem composed of the queue length for packets and the number of circuit calls being served. Finally, packet-level performance is analyzed in terms of the packet loss probability and the buffer size required under mixed-traffic conditions of multiple types of circuit and packet calls.

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  Cite this article

[IEEE Style]

J. c. Shin, Y. Lee, J. h. Kim, H. s. Cho, "A Mathematical Model for Asymmetrical/Heterogeneous Traffic Management in TD-CDMA System," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 4, pp. 259-270, 2005. DOI: .

[ACM Style]

Jung chae Shin, Yutae Lee, Jeong ho Kim, and Ho shin Cho. 2005. A Mathematical Model for Asymmetrical/Heterogeneous Traffic Management in TD-CDMA System. The Journal of Korean Institute of Communications and Information Sciences, 30, 4, (2005), 259-270. DOI: .

[KICS Style]

Jung chae Shin, Yutae Lee, Jeong ho Kim, Ho shin Cho, "A Mathematical Model for Asymmetrical/Heterogeneous Traffic Management in TD-CDMA System," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 4, pp. 259-270, 4. 2005.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880