Effects of mobility on packet level performance of connection-oriented multimedia traffic over packet-switched cellular networks

TitleEffects of mobility on packet level performance of connection-oriented multimedia traffic over packet-switched cellular networks
Publication TypeConference Paper
Year of Publication2004
AuthorsYu, F., L. Ma, and V. C. M. Leung
Conference NameWireless Communications and Networking Conference, 2004. WCNC. 2004 IEEE
Pagination2171 - 2176 Vol.4
Date Publishedmar.
Keywordsbuffer overflow probability, cellular radio, channel holding time, connection-oriented multimedia traffic, delays, exponential distribution, fluid model, handoff call, multimedia communication, on-off source, packet average delay, packet level metrics, packet radio networks, packet switching, packet-switched cellular mobile network, probability, QoS, quality of service, switched networks, telecommunication traffic, user mobility model
Abstract

Packet level metrics such as buffer overflow probability and packet delay are very important quality of service (QoS) parameters in future cellular mobile networks supporting packet-switched traffic. In this paper, we study the effects of user mobility on packet level performance of QoS provisioning schemes for connection-oriented multimedia traffic, which is modeled by a fluid model with on/off sources. We consider both the tradition mobility model, in which channel holding times for new and handoff calls are identically distributed, and a new mobility model proposed recently, in which they are exponentially distributed but with different average values. Using these models, we analyze the packet level performance, such as buffer overflow probability and packet average delay, of different QoS provisioning schemes. Using numerical examples, we show that user mobility models have significant impacts on the packet level performance. The discrepancy between the buffer overflow probabilities using different user mobility models can be as large as 20 times.

URLhttp://dx.doi.org/10.1109/WCNC.2004.1311424
DOI10.1109/WCNC.2004.1311424

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