Paper Info
Title
Call Admission Control Scheme for the IEEE 802.16e at Vehicular Speeds
Abstract
The IEEE 802.16e standard has emerged as an exciting mobile wireless broadband technology that promises to deliver both high throughput and guaranteed quality of service (QoS). Call admission control (CAC) scheme serves as a great utility for WiMAX, which ensures that resources are not over committed and thereby, all existing connections enjoy guaranteed quality of service. Existing CAC schemes largely depend on computation of available resources while making an acceptance or rejection decision once a new request arrives. Since wireless channels are not as reliable as wired communication, CAC scheme in WiMAX communication faces a serious challenge of making a right estimate of the usable channel capacity while computing the available resources at various communication scenarios. Existing CAC schemes do not consider the impact of mobility at vehicular speeds when computing the usable link capacity and available resources. In this paper, we propose a new CAC scheme that estimates the usable link capacity for WiMAX communication at various vehicular speeds and uses this information while making a CAC decision. Extensive simulation results show that the proposed scheme achieves lower dropping rate and improved QoS compared to existing schemes.
Year
DOI
Venue
2010
10.1109/HPCC.2010.81
HPCC
Keywords
Field
DocType
WiMax,channel capacity,quality of service,telecommunication congestion control,telecommunication standards,wireless channels,CAC scheme,IEEE 802.16e standard,WiMAX communication,acceptance decision,call admission control scheme,channel capacity,dropping rate,mobile wireless broadband technology,quality of service,rejection decision,usable link capacity,vehicular speeds,wired communication,wireless channels,WiMAX,call admission control,quality of service,throughput,vehicular speeds
Wireless,Call Admission Control,Computer science,Quality of service,Computer network,Real-time computing,WiMAX,IEEE 802,Throughput,Wired communication,Mobile telephony,Distributed computing
Conference
Citations 
PageRank 
References 
2
0.41
5
Authors
2
Name
Order
Citations
PageRank
Iftekhar Ahmad17516.19
Daryoush Habibi28220.85