Cross-layer QoS provisioning in packet wireless CDMA networks

TitleCross-layer QoS provisioning in packet wireless CDMA networks
Publication TypeConference Paper
Year of Publication2005
AuthorsYu, F., and V. Krishnamurthy
Conference NameCommunications, 2005. ICC 2005. 2005 IEEE International Conference on
Pagination3354 - 3358 Vol. 5
Date Publishedmay.
Keywordscode division multiple access, cross-layer CAC, cross-layer QoS provisioning, Markov Modulated Poisson Process, Markov processes, multimedia communication, multimedia traffic, network layer blocking probability, optimal connection admission control schemes, packet radio networks, packet wireless CDMA networks, physical layer signal-to-interference ratio, Poisson distribution, quality of service, quality of service guarantees, telecommunication congestion control

In this paper, quality of service (QoS) guarantees for multimedia traffic are provided by means of cross-layer optimization in code division multiple access (CDMA) networks. We develop optimal connection admission control (CAC) schemes with both physical layer signal-to-interference ratio (SIR) and network layer blocking probability QoS constraints. Packet traffic is modeled as a Markov modulated Poisson process (MMPP). We show that the cross-layer CAC problem in packet CDMA networks has a nearly complete decomposability structure, based on which we propose two CAC algorithms that require much less computation than some existing schemes and can have good approximation to the optimal solutions. The effectiveness of the proposed schemes is demonstrated by numerical examples.


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