Title :
OSSC: a new scheme for code allocation in WCDMA
Author :
Al-Meshhadany, Tharner ; Al Agha, Khaldoun
Author_Institution :
Lab. de Recherche en Inf., Univ. de Paris-Sud, Orsay, France
Abstract :
Future wireless systems will have to support multimedia services such as voice, video and data. Several mechanisms, like multiple access, bandwidth allocation and power control are used for providing these multimedia services. In the 3rd generation of wireless systems, WCDMA is used for the access method in the FDD mode. Therefore, the capacity of the system is based on the cross correlation among the user´s allocated scrambling codes. In this work, we analyze the WCDMA uplink resource allocation and propose a new method, called one service-one scrambling code (OSSC), that reduces the aggregate number of scrambling codes assigned to users in a cell. We also study the impact of the scrambling code assignment on the call interference and the system capacity. An analytical model is provided in this paper
Keywords :
broadband networks; cellular radio; code division multiple access; codes; frequency division multiplexing; multimedia communication; packet radio networks; 3rd generation mobile communication; FDD mode; OSSC; UMTS; WCDMA; call interference; code allocation; multimedia services; one service-one scrambling code; scrambling codes; system capacity; uplink resource allocation; 3G mobile communication; Additive white noise; Aggregates; Integrated circuit modeling; Interference; Multiaccess communication; Multiplexing; Power control; Quality of service; Resource management;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2001 12th IEEE International Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-7244-1
DOI :
10.1109/PIMRC.2001.965256
