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Unified multiple-access performance analysis of several multirate multicarrier spread-spectrum systems
, Article Scientia Iranica ; Volume 13, Issue 1 , 2006 , Pages 33-49 ; 10263098 (ISSN) ; Nasiri Kenari, M ; Sharif University of Technology
Sharif University of Technology
2006
Abstract
A unified multiple-access performance analysis and comparison of three multicarrier spread-spectrum multiple-access schemes, namely, MC-CDMA (Multicarrier Code-Division Multiple-Access), MC-FH (Multicarrier Frequency Hopping) and a hybrid of the above systems, called DS-MC-FH (Direct-Sequence MC-FH), in a multirate environment, where each user can have several multirate services, is provided. In MC-CDMA and MC-FH systems, users and their diverse services are differentiated by means of only one kind of signature code. However, in a DS-MCFH scheme, different users and different services of the same user are distinguished through the first and second signature codes, respectively. The...