Title :
Optimal Call Admission Control Policy for the RCS Schemes in Wireless Networks
Author :
Ni, Wenlong ; Li, Wei ; Alam, Mansoor
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Univ. of Toledo, Toledo, OH
Abstract :
This paper investigates the optimal call admission control (CAC) policy for the reserved channel schemes (RCS) in a wireless network. Under the assumption that all calls arrival processes are Poisson processes, their service times are exponentially distributed, admitting each call would bring a reward and there are holding costs per unit time, we figure out the optimal policy of when to reject the calls in order to achieve the maximum reward. A discounted semi Markov decision process (SMDP) model is used to derive the optimal policy for maximum total expected discounted reward on each state. We verified that the optimal CAC policy is a control limit policy if the cost functions have some special properties.
Keywords :
Markov processes; decision theory; radio networks; telecommunication congestion control; wireless channels; Poisson processes; calls arrival processes; control limit policy; cost functions; discounted semi Markov decision process model; optimal call admission control policy; reserved channel schemes; wireless networks; Call admission control; Communications Society; Computer science; Cost function; History; Linear programming; Optimal control; State-space methods; Telecommunication control; Wireless networks;
Conference_Titel :
Communications, 2008. ICC '08. IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2075-9
Electronic_ISBN :
978-1-4244-2075-9
DOI :
10.1109/ICC.2008.536