The week's pick
Reseach Article
DS-CDMA Noncoherent Receiver with PN Code Tracking
| International Conference and Workshop on Emerging Trends in Technology |
| Foundation of Computer Science USA |
| ICWET2012 - Number 5 |
| March 2012 |
| Authors: Sonali Kathare, Suman Wadkar, Sanjeevkumar Srivastava |
| dd0c4c57-7ea9-4a13-9056-47f5adf6b8a6 |
Sonali Kathare, Suman Wadkar, Sanjeevkumar Srivastava . DS-CDMA Noncoherent Receiver with PN Code Tracking. International Conference and Workshop on Emerging Trends in Technology. ICWET2012, 5 (March 2012), 26-31.
Abstract
In this paper, a noncoherent receiver with PN code tracking for direct sequence code division multiple access (DS-CDMA) communication systems in multipath channels is proposed and analyzed. The decision-feedback differential detection method is employed to detect PSK signals. In this method an “error signal” is used to update the tap weights and the estimated code delay. By increasing the number of feedback symbols we can improve the performance of the proposed noncoherent receiver. With the large number of feedback symbols, the optimum weight can be derived analytically, and the performance of the proposed noncoherent receiver matches to that of the conventional coherent receiver. Simulations are shown in support.
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