Dynamic resource scheduling schemes for W-CDMA systems

W-CDMA is the strongest candidate for the air interface technology of third-generation wireless communication systems. Dynamic resource scheduling is proposed as a framework that will provide QoS provisioning for multimedia traffic in W-CDMA systems. The DRS framework monitors the traffic variations and adjusts the transmission powers of users in an optimal manner to accommodate different service classes efficiently. Variable and optimal power allocation is suggested to provision error requirements and maximize capacity, while prioritized queuing is introduced to provision delay bounds. A family of DRS algorithms has been devised along these dimensions for obtaining different levels of QoS. The DRS schemes are discussed in terms of queuing and bandwidth allocation with an emphasis on their impact on delay QoS.

[1]  Henry L. Owen,et al.  A resource management framework for QOS provisioning in W-CDMA systems , 1999, 1999 IEEE 49th Vehicular Technology Conference (Cat. No.99CH36363).

[2]  Marwan Krunz,et al.  Bandwidth allocation strategies for transporting variable bit rate video traffic , 1999, IEEE Commun. Mag..

[3]  Jack M. Holtzman,et al.  Power control and resource management for a multimedia CDMA wireless system , 1995, Proceedings of 6th International Symposium on Personal, Indoor and Mobile Radio Communications.

[4]  Y. Tanik,et al.  Capacity improvement by code-hopping in S-CDMA systems , 1998, ICC '98. 1998 IEEE International Conference on Communications. Conference Record. Affiliated with SUPERCOMM'98 (Cat. No.98CH36220).

[5]  I Chih-Lin,et al.  Multi-code CDMA wireless personal communications networks , 1995, Proceedings IEEE International Conference on Communications ICC '95.

[6]  Özgür Gürbüz,et al.  Dynamic resource scheduling for variable QoS traffic in W-CDMA , 1999, 1999 IEEE International Conference on Communications (Cat. No. 99CH36311).

[7]  Roy D. Yates,et al.  A Framework for Uplink Power Control in Cellular Radio Systems , 1995, IEEE J. Sel. Areas Commun..

[8]  Alberto Leon-Garcia,et al.  Scheduled CDMA: a hybrid multiple access for wireless ATM networks , 1996, Proceedings of PIMRC '96 - 7th International Symposium on Personal, Indoor, and Mobile Communications.

[9]  Henry L. Owen,et al.  Dynamic resource scheduling strategies for QoS in W-CDMA , 1999, Seamless Interconnection for Universal Services. Global Telecommunications Conference. GLOBECOM'99. (Cat. No.99CH37042).