Optimization for adaptive bandwidth reservation in wireless multimedia networks

Authors:
Ki-Dong Lee;Sehun Kim
Affiliations:
Radio and Broadcasting Laboratory, Electronics and Telecommunications Research Institute (ETRI), 161 Kajong-dong, Yusong-gu, Daejon, 305-350 South Korea;Department of Industrial Engineering, Korea Advanced Institute of Science and Technology (KAIST), 373-1 Kusong-dong, Yusong-gu, Daejon, 305-701 South Korea
Venue:
Computer Networks: The International Journal of Computer and Telecommunications Networking
Year:
2002

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Abstract

In future wireless multimedia networks, user mobility management for seamless connection regarding realtime multimedia applications is one of the most important problems. In this paper we propose an opportunity-cost concept-based approach for adaptive bandwidth reservation with admission control for handover calls utilizing network traffic information. Excessive reservation guarantees low blocking probability of handover calls at the cost of high blocking probability of new calls. According to our survey, however, it may degrade bandwidth utilization while no prioritization for handover admissions degrades quality of service (QoS) for ongoing calls. We consider both QoS assurance and bandwidth utilization in order to optimize the amount of bandwidth to reserve for handover admissions. We believe that our scheme could be utilized as a guideline for cost-effective radio resource allocation in mobile multimedia networks.