On call admission and performance evaluation for multiservice CDMA networks
ACM SIGMOBILE Mobile Computing and Communications Review - Special issue on wireless pan & sensor networks
Characterizing and modeling user mobility in a cellular data network
PE-WASUN '05 Proceedings of the 2nd ACM international workshop on Performance evaluation of wireless ad hoc, sensor, and ubiquitous networks
Conservative estimates of blocking and outage probabilities in CDMA networks
Performance Evaluation - Performance 2005
Impacts of data call characteristics on multi-service CDMA system capacity
Performance Evaluation - Performance 2005
A throughput-efficient two level access control scheme for multimedia CDMA networks
Proceedings of the 2006 international conference on Wireless communications and mobile computing
Downlink traffic control for multiple classes of services in MC-CDMA cellular systems
Mobile Networks and Applications
Metastability of CDMA cellular systems
Proceedings of the 12th annual international conference on Mobile computing and networking
Call admission control in multiservice high altitude platform (HAP) W-CDMA cellular systems
Computer Networks: The International Journal of Computer and Telecommunications Networking
Performance of a two-level call admission control scheme for DS-CDMA wireless networks
EURASIP Journal on Wireless Communications and Networking
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Analysis of multiservice cellular networks with asymmetrical traffic and handoff queue
Computer Communications
Performance evaluation of a novel scheme for QoS provision in UTRA TDD
Computer Communications
Optimization of radio resource management schemes in UMTS using pricing
Computer Communications
Computers and Electrical Engineering
Cross-layer radio resource management in integrated WWAN and WLAN networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Journal of Network and Systems Management
A Power Control Based Admission Algorithm for Maximizing Throughput in a CDMA Network
Wireless Personal Communications: An International Journal
Adaptive supporting prioritized soft handoff calls for power-controlled DS-CDMA cellular networks
MMNS'05 Proceedings of the 8th international conference on Management of Multimedia Networks and Services
A general framework for analyzing the optimal call admission control in DS-CDMA cellular network
ICCSA'05 Proceedings of the 2005 international conference on Computational Science and Its Applications - Volume Part II
Admission control in the downlink of WCDMA/UMTS
NGI'04 Proceedings of the First international conference on Wireless Systems and Mobility in Next Generation Internet
Expert Systems with Applications: An International Journal
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The call admission control (CAC) belongs to the category of resource management. Since the radio spectrum is very scarce resource, CAC is one of the most important engineering issues for mobile communications. In this paper, we propose a CAC scheme for direct sequence code-division multiple-access cellular systems supporting mobile multimedia communications services. There are multiple call classes in multimedia services and the required signal-to-interference ratio (SIR) varies with call classes. Call admission decision in the proposed scheme is based on SIR measurement. We take account of the traffic asymmetry between uplink and downlink, which is the most important characteristic of multimedia traffic. In addition, the proposed scheme guarantees the priority of handoff call requests over new call requests. We evaluate the performance of the proposed scheme using Markov analysis. The performance measures which we focus on are the system throughput and the blocking probabilities of handoff calls and new calls. The outage probability of a call in progress is also calculated, which is the probability that the measured bit energy-to-noise density ratio of the call is smaller than the required value for maintaining adequate transmission quality. We present some numerical examples with practically meaningful parameter values and, as a result, show that the proposed CAC scheme can operate well in the mobile multimedia systems such as the International Mobile Telecommunications-2000 (IMT-2000) systems.