Title :
Dynamic resource scheduling strategies for QoS in W-CDMA
Author :
Gürbüz, Özgür ; Owen, Henry
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
Dynamic resource scheduling (DRS) has been proposed as an adaptive resource management and QoS provisioning framework applicable to W-CDMA systems. We consider and evaluate different spreading strategies for the DRS framework. Fixed spreading gain (FSG), variable spreading gain (VSG) and multi-code (MC) strategies are examined, and their performance is compared in terms of power saving, resource allocation and QoS stability. The VSG-DRS and MC-DRS outperform the FSG-DRS for capacity as a result of the statistical multiplexing gain created by adaptive bandwidth usage. However, MC-DRS is found to be less stable than the other schemes in QoS maintenance. The VSG-DRS is concluded to be the best compromise in terms of resource allocation, power consumption and stable QoS
Keywords :
adaptive systems; broadband networks; code division multiple access; land mobile radio; multiplexing; quality of service; queueing theory; radio networks; spread spectrum communication; telecommunication network management; FCFS; QoS maintenance; QoS provisioning; QoS stability; W-CDMA systems; adaptive bandwidth usage; adaptive resource management; dynamic resource scheduling; first come first serve; fixed spreading gain; mobile radio; multi-code strategy; performance; power consumption; power saving; resource allocation; spreading strategies; statistical multiplexing gain; variable spreading gain; wireless networks; Bandwidth; Base stations; Dynamic scheduling; Interference; Multiaccess communication; Performance gain; Processor scheduling; Resource management; Stability; Traffic control;
Conference_Titel :
Global Telecommunications Conference, 1999. GLOBECOM '99
Conference_Location :
Rio de Janeireo
Print_ISBN :
0-7803-5796-5
DOI :
10.1109/GLOCOM.1999.831632
