Title :
On Achieving Accurate Call Admission Control for Videoconference Traffic Transmission over Wireless Cellular Networks
Author :
Chatziperis, S. ; Koutsakis, P. ; Paterakis, M.
Author_Institution :
Dept. of Electron. & Comput. Eng., Crete Tech. Univ.
Abstract :
User mobility, combined with the rapidly growing number of multimedia applications, form a challenging and yet unresolved problem for the development of call admission control schemes over next generation wireless cellular networks. In recent work the behavior of H.263 videoconference traces have been modeled with the use of a discrete autoregressive (DAR(Garawi et al., 2006)) model. Based on this model, a new efficient CAC scheme for videoconference traffic over cellular networks was proposed in this work, which uses precomputed traffic scenarios for its decision-making. The scheme is shown, via an extensive simulation study, to clearly excel in comparison with well-known existing approaches, in terms of quality of service (QoS) provisioning to users receiving videoconference traffic.
Keywords :
autoregressive processes; cellular radio; telecommunication congestion control; teleconferencing; call admission control; discrete autoregressive model; precomputed traffic; quality of service; user mobility; videoconference traffic transmission; wireless cellular networks; Bandwidth; Call admission control; Communication system traffic control; Delay; Downlink; Land mobile radio cellular systems; Quality of service; Telecommunication traffic; Traffic control; Videoconference;
Conference_Titel :
Wireless Communications and Networking Conference, 2007.WCNC 2007. IEEE
Conference_Location :
Kowloon
Print_ISBN :
1-4244-0658-7
Electronic_ISBN :
1525-3511
DOI :
10.1109/WCNC.2007.594