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Multicode Multirate Compact Assignment of OVSF Codes for QoS Differentiated Terminals

Yang, Y and Yum, TSP (2005) Multicode Multirate Compact Assignment of OVSF Codes for QoS Differentiated Terminals. IEEE Transactions on Vehicular Technology , 54 (6) 2114 - 2124. 10.1109/TVT.2005.858166.

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Abstract

Orthogonal Variable Spreading Factor (OVSF) codes are used in both UTRA-FDD and UTRA-TDD of the third-generation (3G) mobile communication systems. They can support multirate transmissions for mobile terminals with multicode transmission capabilities. In this paper, a new OVSF code assignment scheme, namely ``Multicode Multirate Compact Assignment'' (MMCA), is proposed and analyzed. The design of MMCA is based on the concept of ``compact index'' and takes into consideration mobile terminals with different multicode transmission capabilities and different Quality of Service (QoS) requirements. Priority differentiation between multirate realtime traffic and best-effort data traffic is also supported in MMCA. Analytical and simulation results show that MMCA is efficient and fair.

Type:Article
Title:Multicode Multirate Compact Assignment of OVSF Codes for QoS Differentiated Terminals
Open access status:An open access version is available from UCL Discovery
DOI:10.1109/TVT.2005.858166
Keywords:Orthogonal Variable Spreading Factor (OVSF) Code, Dynamic Channel Assignment (DCA), Quality of Service (QoS), Universal Terrestrial Radio Access (UTRA).
UCL classification:UCL > School of BEAMS > Faculty of Engineering Science > Electronic and Electrical Engineering

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