Optimal call Admission Control for an IEEE802.16 Wireless Metropolitan

Sondes Khemiri (1) , Khaled Boussetta , Nadjib Achir , Guy Pujolle (1)

1 Phare

This paper focus on optimal Call Admission Control (CAC) policy for an IEEE 802.16 Wireless MAN. This policy has two objectives: (i) statistically guarantee the QoS of UGS, rtPS and nrtPS connections, (ii) maximize the average revenue of the wireless link. To find such optimal policy, we model our CAC agent as a Constrained Semi-Markov Decision Process (CSMDP). To the best of our knowledge, the only algorithm able to compute the optimal control policy of a CSMDP is based on the Linear Programming (L.P.) approach. Unfortunately, a realistic CAC problem with a large states space is intractable with the L.P. algorithm. Our work presents two contributions. First, the proposition of an optimal CAC for Triple-Play services support over a 802.16 WMAN. Second, the presentation of an alternative iterative algorithm that can be used to overcome the difficulties faced by the L.P. approach.

Domaines: Informatique [cs]

Sondes Khemiri, Khaled Boussetta, Nadjib Achir, Guy Pujolle. Optimal call Admission Control for an IEEE802.16 Wireless Metropolitan. International Conference on Network Control and Optimization, Jun 2007, Avignon, France. pp.105-114, ⟨10.1007/978-3-540-72709-5_11⟩. ⟨hal-01334741⟩