Sensitivity analysis on resource access control in mobile networks

Huan Chen; Chih-Chuan Cheng; Mei-Hsiu Chi; Hsi-Hsun Yeh

doi:10.1117/12.580057

25 October 2004 Sensitivity analysis on resource access control in mobile networks

Huan Chen, Chih-Chuan Cheng, Mei-Hsiu Chi, Hsi-Hsun Yeh

Proceedings Volume 5601, Internet Multimedia Management Systems V; (2004) https://doi.org/10.1117/12.580057
Event: Optics East, 2004, Philadelphia, Pennsylvania, United States

Abstract

In recent years, there has been tremendous interests and progresses in the field of wireless communications. Call admission control (CAC) is the key component to maximize the system utilization under certain QoS constraints such as call blocking rates. Among the CACs, Markov decision process (MDP) approach is a popular method to optimize certern objectives of interest. However, the computation complexity for deriving optimal policies make this approach less accessible to those with large problem size. In this paper, we will address this issue of how the optimal solutions fluctuate as the traffic condition changed using sensitivity analysis technique, in order to cut down unnecessary computing time if optimal policy did not change as the traffic conditions vary. First of all, the LP problem is solved by simplex method to examine the best policy when the optimal solution is found, then the sensitivity analysis technique is used by adding perturbation on traffic parameters to indicate the range to which optimal bases are invariant. The analytical results for computation complexity reduction is shown to analyze the performance under various traffic conditions.

Citation Download Citation

Huan Chen, Chih-Chuan Cheng, Mei-Hsiu Chi, and Hsi-Hsun Yeh "Sensitivity analysis on resource access control in mobile networks", Proc. SPIE 5601, Internet Multimedia Management Systems V, (25 October 2004); https://doi.org/10.1117/12.580057

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KEYWORDS

Computer programming

Computing systems

Control systems

Computer simulations

Systems modeling

Holmium

Optimization (mathematics)

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