New signature waveforms for multi-rate QS-CDMA system with QPSK modulation.
Feng, Lifang and Fan, Pingzhi and Loo, Jonathan and Hao, Li (2009) New signature waveforms for multi-rate QS-CDMA system with QPSK modulation. Wireless Personal Communications., 55 (2). pp. 273-288. ISSN 0929-6212
Full text is not in this repository.
This item is available in the Library Catalogue
This paper presents a multi-rate quasi-synchronous CDMA (QS-CDMA) system with QPSK modulation based on the new signature waveforms, namely GPZ-chip waveforms which are constructed by the generalized pairwise Z-complementary (GPZ) codes and optimal chip waveforms. According to the properties of GPZ-chip waveforms, the multiple access interference of different users can be reduced or eliminated. The interferences among different streams of the same user are handled by an optimal (or suboptimal) multi-stream detector(s). The performance of the proposed system is simulated and analyzed in a cellular communication environment consisting of multipath fading. The result shows that the proposed system has similar performance as compared to the single-rate QS-CDMA system employingGPZcodes with one chipwaveform due to the properties ofmulti-stream detection. Also, the proposed system can achieve a significant interference reduction as compared to the multi-rate system employing concatenated WH/m sequence sets with one chip waveform due to the zero correlation zone properties of the GPZ-chip waveforms, thus resulting better BER performance.
|Research Areas:||Middlesex University Schools and Centres > School of Science and Technology > Computer and Communications Engineering|
Middlesex University Schools and Centres > School of Science and Technology > Computer Science > SensoLab group
|Citations on ISI Web of Science:||0|
|Deposited On:||28 Apr 2011 15:05|
|Last Modified:||31 Oct 2014 17:15|
Repository staff only: item control page
Full text downloads (NB count will be zero if no full text documents are attached to the record)
Downloads per month over the past year