Title :
Analysis of combined adaptive bandwidth allocation and admission control in wireless networks
Author :
Chou, Chun-Ting ; Shin, Kang G.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA
Abstract :
An analytical model is developed for cellular networks with a combined adaptive bandwidth allocation and traffic-restriction mechanism. Instead of focusing only on the bandwidth utilization and forced-termination probability, we derive two important quality-of-service (QoS) metrics, degradation ratio and upgrade/degrade frequency. We show numerically that these two metrics must be taken into account in order to support the QoS specified by each client. The effects of system loads and clients´ mobility on system performance are also investigated. Even under the various distributions of mobility, the simulation results are shown to match our analytical results, implying the applicability of our analytical model to more general cases.
Keywords :
bandwidth allocation; cellular radio; quality of service; telecommunication congestion control; telecommunication traffic; QoS metrics; adaptive bandwidth allocation; admission control; cellular networks; client mobility; degradation ratio; quality-of-service metrics; system load; system performance; traffic restriction; upgrade/degrade frequency; wireless networks; Adaptive control; Admission control; Analytical models; Channel allocation; Communication system traffic control; Degradation; Land mobile radio cellular systems; Programmable control; Traffic control; Wireless networks;
Conference_Titel :
INFOCOM 2002. Twenty-First Annual Joint Conference of the IEEE Computer and Communications Societies. Proceedings. IEEE
Print_ISBN :
0-7803-7476-2
DOI :
10.1109/INFCOM.2002.1019313
