Title :
A dynamic code assignment algorithm for quality of service in 3G wireless networks
Author :
Fossa, Carl E., Jr. ; Davis, Nathaniel J., IV
Author_Institution :
Bradley Dept. of Electr. & Comput. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Abstract :
Emerging third generation (3G) wireless standards promise a "last-mile" solution capable of supporting mobile, wireless Internet service. The Third Generation Partnership Proposal (3GPP) wideband code division multiple access (WCDMA) standard will support data rates up to 2 Mbit/s with orthogonal variable spreading factor (OVSF) codes. This paper presents a dynamic OVSF code assignment algorithm that efficiently shares a WCDMA downlink between data traffic sources with different QoS requirements. Our simulation results verify that the algorithm functions as desired. The QoS guarantees for high QoS traffic are protected, and best effort traffic is able to utilize available bandwidth.
Keywords :
Internet; bandwidth allocation; channel coding; code division multiple access; data communication; mobile computing; mobile radio; packet radio networks; quality of service; 3G wireless networks; 3GPP; OVSF codes; QoS traffic; Third Generation Partnership Proposal; WCDMA; bandwidth utilization; data rates; downlink; dynamic code assignment; mobile Internet; orthogonal variable spreading factor; quality of service; wideband code division multiple access; Code standards; Downlink; Heuristic algorithms; Multiaccess communication; Proposals; Quality of service; Traffic control; Web and internet services; Wideband; Wireless networks;
Conference_Titel :
Wireless Communications and Networking Conference, 2002. WCNC2002. 2002 IEEE
Print_ISBN :
0-7803-7376-6
DOI :
10.1109/WCNC.2002.993452
