Cross-Layer QoS Support for Packet Multimedia in Wireless Networks

TitleCross-Layer QoS Support for Packet Multimedia in Wireless Networks
Publication TypeConference Paper
Year of Publication2007
AuthorsYu, F. R., and V. Krishnamurthy
Conference NameGlobal Telecommunications Conference, 2007. GLOBECOM '07. IEEE
Pagination5314 -5318
Date Publishednov.
KeywordsCDMA networks, code devision multiple access networks, code division multiple access, cross-layer QoS support, multimedia communication, network layer connection blocking probability, network layer traffic, packet multimedia wireless networks, packet radio networks, quality of service, quality of service requirements, radio resource allocation scheme, resource allocation, telecommunication traffic, wireless mobile networks

An efficient radio resource allocation scheme is crucial for guaranteeing the quality of service (QoS) requirements and fully utilizing the scarce radio resources in wireless multimedia networks. Most of previous work of radio resource allocation in traditional wireless networks concentrates on network layer connection blocking probability QoS. In this paper, we show that physical layer techniques and QoS have significant impacts on network layer QoS. We use a concept of cross-layer effective bandwidth to measure the unified radio resource usage taking into account both physical layer receivers and network layer traffic in code devision multiple access (CDMA) networks. Based on this concept, we can use rich theories developed in traditional wireless mobile networks for packet multimedia wireless networks. Moreover, since both physical layer QoS and network layer QoS are considered simultaneously, we can explore the tradeoff between physical layer QoS and network layer QoS in packet multimedia wireless networks.


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