Research Article
On the variable capacity property of CC/DS-CDMA systems
@INPROCEEDINGS{10.1109/QSHINE.2005.38, author={ Li-Peng Wang and Yang Yang and Hsiao-Hwa Chen and Yong-Hua Song }, title={On the variable capacity property of CC/DS-CDMA systems}, proceedings={2nd International ICST Conference on Quality of Service in Heterogeneous Wired/Wireless Networks}, publisher={IEEE}, proceedings_a={QSHINE}, year={2005}, month={12}, keywords={}, doi={10.1109/QSHINE.2005.38} }- Li-Peng Wang
Yang Yang
Hsiao-Hwa Chen
Yong-Hua Song
Year: 2005
On the variable capacity property of CC/DS-CDMA systems
QSHINE
IEEE
DOI: 10.1109/QSHINE.2005.38
Abstract
Complete complementary code based direct sequence code division multiple access (CC/DS-CDMA) system has been proposed recently as a potential candidate for beyond the third generation (B3G) mobile communications. This paper addresses the issue on variable capacity property (VCP) of a CC/DS-CDMA system with multiple time slots, pertaining to the multi-rate channel assignment schemes of a CC/DS-CDMA system. In particular, three traffic classes and two dynamic code flock assignment schemes, namely random assignment (RA) and compact assignment (CA), are considered in our study. Simulation results of blocking probability, mean and variance of system capacity, and throughput under different schemes are derived and compared. It is concluded that the VCP of CC/DS-CDMA systems is sensitively affected by different code flock assignment schemes. In general, CA can offer lower blocking probability and more stable system capacity; whereas RA can offer larger mean system capacity and higher throughput when offered traffic is heavy