DCA wireless networks under high offered loads: the need for bandwidth reservation

Authors:
Jelena Mišić;Bun Yik Tam
Affiliations:
Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong;Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
Venue:
ACM SIGMOBILE Mobile Computing and Communications Review
Year:
2002

Citing 6
Cited 0

Admission control for wireless multimedia networks with hard call level quality of service bounds

IC3N '97 Selected papers of the 6th international conference on Computer communications and networks
Wireless Communications: Principles and Practice

Wireless Communications: Principles and Practice
OFDM for Wireless Multimedia Communications

OFDM for Wireless Multimedia Communications
Channel assignment schemes for cellular mobile telecommunication systems: A comprehensive survey

IEEE Communications Surveys & Tutorials
Performance evaluation of distributed measurement-based dynamic channel assignment in local wireless communications

IEEE Journal on Selected Areas in Communications
Adaptive admission control in wireless multimedia networks under non-uniform traffic conditions

IEEE Journal on Selected Areas in Communications

Quantified Score

Hi-index	0.01

Visualization

Abstract

Dynamic channel allocation policy (DCA) in wireless networks is known to be better than the fixed channel allocation (FCA) policy from the aspect of the call level QoS such as handoff dropping probability. Because of this superiority the DCA networks are usually designed without the call admission control (CAC). However, given the decrease of cell sizes, together with increasing mobile phone and terminal population, and with the bandwidth requirements of multimedia applications, it is likely to come to the situation when high traffic area size exceeds the area where channel borrowing can ensure bounded QoS. This paper analyses the performance of the DCA networks without the CAC under high intensity traffic and shows that under such conditions DCA network fails to ensure sufficiently low level of QoS. Further, we propose CAC which can stabilize the QoS under high loads and changing traffic conditions. This CAC integrates well with distributed DCA policies.