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http://bura.brunel.ac.uk/handle/2438/1191
Title: | On the variable capacity property of CC/DS-CDMA systems |
Authors: | Wang, LP Yang, Y Chen, HH Song, YH |
Keywords: | Code division multiple access (CDMA);Complete complementary codes;Resource allocation |
Issue Date: | 2006 |
Publisher: | IEEE |
Citation: | IEEE Transactions On Vehicular Technology. 55(3): 774-778, May 2006 |
Abstract: | A complete complementary code based direct sequence code division multiple access (CC/DS-CDMA) system has been proposed recently as a potential candidate for beyond third generation (B3G) wireless communications. This paper addresses the issues that design of efficient code assignment schemes should be based on a flexible physical layer support, which is extremely important for emerging cross-layer designs in future wireless applications. The study in this paper considers a CC/DS-CDMA system with multiple time slots, three traffic classes and two dynamic code-flock assignment schemes, namely random assignment (RA) and compact assignment (CA). Simulation results show that the CC/DS-CDMA system has variable capacity property (VCP), which is sensitively affected by different code-flock assignment schemes. In general, CA can offer lower blocking probability, whereas RA can offer a larger mean system capacity and higher throughput when offered traffic is heavy. |
URI: | http://bura.brunel.ac.uk/handle/2438/1191 |
Appears in Collections: | Electronic and Computer Engineering Dept of Electronic and Electrical Engineering Research Papers |
Files in This Item:
File | Description | Size | Format | |
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On the variable capacity 2006.pdf | 206.99 kB | Adobe PDF | View/Open |
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