Proceedings ArticleDOI
Dynamic resource scheduling for variable QoS traffic in W-CDMA
Ozgur Gurbuz,Henry L. Owen +1 more
- Vol. 2, pp 703-707
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TLDR
This paper proposes the dynamic resource scheduling mechanism for QoS provisioning in W-CDMA through optimal power assignment and code hopping, which is able to carry variable QoS multimedia traffic, efficiently serving a wide range of classes with CBR, VBR, ABR and UBR characteristics.Abstract:
W-CDMA is the strongest candidate as the air interface technology of the third generation mobile communication systems, which are expected to support multimedia services with QoS requirements. In this paper, we review the W-CDMA technology and consider the issues in multimedia support. We propose the dynamic resource scheduling mechanism for QoS provisioning in W-CDMA through optimal power assignment and code hopping. Our framework is able to carry variable QoS multimedia traffic, efficiently serving a wide range of classes with CBR, VBR, ABR and UBR characteristics. Dynamic resource scheduling improves capacity and throughput performance. Other advantages are power saving and faster convergence to the desired power level.read more
Citations
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Journal ArticleDOI
Dynamic bandwidth allocation with fair scheduling for WCDMA systems
Liang Xu,Xuemin Shen,Jon W. Mark +2 more
TL;DR: Simulation results show that the proposed code-division generalized processor sharing fair scheduling DBA scheme is effective in supporting differentiated QoS, while achieving efficient utilization of radio resources.
Journal ArticleDOI
A joint source coding-power control approach for video transmission over CDMA networks
Yee Sin Chan,J.W. Modestino +1 more
TL;DR: It is demonstrated that the network resources consumed by an individual user in a spread-spectrum CDMA network can be taken as the product of the allocated source-coding rate R/sub s/ and the energy per bit normalized to the multiple-access interference noise density /spl gamma//sub b/.
Journal ArticleDOI
Dynamic resource scheduling schemes for W-CDMA systems
Ozgur Gurbuz,Henry L. Owen +1 more
TL;DR: Dynamic resource scheduling is proposed as a framework that will provide QoS provisioning for multimedia traffic in W-CDMA systems and the DRS schemes are discussed in terms of queuing and bandwidth allocation with an emphasis on their impact on delay QoS.
Journal ArticleDOI
Fair channel-adaptive rate scheduling in wireless networks with multirate multimedia services
TL;DR: The proposed approach adopts the use of dynamically assigned data rates that match the channel capacity in order to improve the system throughput and overcome the problems associated with the location-dependent and time-dependent errors and channel conditions, the variable system capacity and the transmission power limitation.
Proceedings ArticleDOI
Dynamic resource scheduling strategies for QoS in W-CDMA
Ozgur Gurbuz,Henry L. Owen +1 more
TL;DR: The VSG-DRS is concluded to be the best compromise in terms of resource allocation, power consumption and stable QoS.
References
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Journal ArticleDOI
Wideband DS-CDMA for next-generation mobile communications systems
TL;DR: In this article, a wideband wireless access based on direct sequence code division multiple access aimed at third-generation mobile communications systems is reviewed, and the radio link performance evaluated by computer simulation is also presented.
Journal ArticleDOI
UMTS/IMT-2000 based on wideband CDMA
TL;DR: UTRA based on W-CDMA can now be regarded as a mature technology, ready to provide the basis for UMTS/IMT-2000, and has flexible support of mixed services, variable-rate services, and an efficient packet mode.
Proceedings ArticleDOI
Power control and resource management for a multimedia CDMA wireless system
TL;DR: Borders are developed on the total number of users of each class that can be supported simultaneously while maintaining adequate QoS and meeting resource constraints in future wireless systems.
Proceedings ArticleDOI
Power control for variable QOS on a CDMA channel
L.C. Yun,D.G. Messerschmitt +1 more
TL;DR: An algorithm for supporting different quality of service (QOS) requirements for different traffic in an interference-limited cellular CDMA environment is described and can be used to add or drop substream connections dynamically while ensuring that QOS specifications are not violated.
Proceedings ArticleDOI
Scheduled CDMA: a hybrid multiple access for wireless ATM networks
M. Ali Arad,Alberto Leon-Garcia +1 more
TL;DR: A new MAC protocol called scheduled CDMA (SCDMA) is introduced, a hybrid CDMA/TDMA scheme in which the base station schedules transmission of CDMA-based mobile terminals.