Effective bandwidth of multimedia traffic in packet wireless CDMA networks with LMMSE receivers: a cross-layer perspective

TitleEffective bandwidth of multimedia traffic in packet wireless CDMA networks with LMMSE receivers: a cross-layer perspective
Publication TypeJournal Article
Year of Publication2006
AuthorsYu, F., and V. Krishnamurthy
JournalWireless Communications, IEEE Transactions on
Volume5
Pagination525 - 530
Date Publishedmar.
ISSN1536-1276
Keywordscode division multiple access, cross-layer effective bandwidth, least mean squares methods, linear minimum mean square error, LMMSE receivers, multimedia communication, multimedia traffic, optimal connection admission control scheme, packet radio networks, packet traffic, packet wireless CDMA networks, QoS constraints, quality of service, radio receivers, signal-to-interference ratio outage probability, statistical analysis, statistical characteristics, telecommunication congestion control, telecommunication traffic, variable bit rate packet traffic
Abstract

We propose a novel concept of cross-layer effective bandwidth that characterizes the unified resource usage taking into account both physical layer linear minimum mean square error (LMMSE) receivers and statistical characteristics of the packet traffic in code division multiple access (CDMA) networks. Based on the concept of cross-layer effective bandwidth, we develop an optimal connection admission control (CAC) scheme for variable bit rate packet traffic with QoS constraints at both physical and network layers. By introducing a small signal-to-interference ratio (SIR) outage probability using the concept of cross-layer effective bandwidth, the capacity of CDMA networks in the proposed CAC scheme can be increased significantly compared to some existing schemes. The effectiveness of the proposed approaches is demonstrated by numerical examples.

URLhttp://dx.doi.org/10.1109/TWC.2006.1611082
DOI10.1109/TWC.2006.1611082

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