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Complexity Reduction and Performance Improvement of Multistage Detector with Parallel Interference Cancellation for DS-CDMA System | ||
| Al-Rafidain Engineering Journal (AREJ) | ||
| Article 9, Volume 16, Issue 4, 2008, Pages 49-58 PDF (0 K) | ||
| DOI: 10.33899/rengj.2008.44730 | ||
| Authors | ||
| Sedki. B. T. Younis; Bayez K. Al-Sulaifanie | ||
| Abstract | ||
| Abstract In this paper we propose a new method which combines the partial cancellation and differencing technique to achieve performance improvement and reduction in complexity, the proposed technique is named Multistage (DP-PIC) Detector. The simulation model for the proposed DP-PIC is implemented in floating and fixed point arithmetic. The simulation results illustrates that a partial cancellation factor of 0.7 and 0.8 in the first and second stage respectively gives a good performance for the proposed technique. A precision of 16-bit is enough to achieve a small performance degradation compared to floating point results. Finally the proposed fixed point DP-PIC is implemented on TMS320C6400 DSP simulator. The implementation results illustrate that 35% complexity reduction can be achieved compared with conventional PIC detection. Keywords: DS-CDMA, PIC, Complexity reduction, performance improvement. | ||
| Keywords | ||
| KEYWORDS; CDMA; PIC; Complexity reduction; performance improvement | ||
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