| Paper: | SPTM-P13.8 | ||
| Session: | Detection and Classification | ||
| Time: | Friday, May 21, 15:30 - 17:30 | ||
| Presentation: | Poster | ||
| Topic: | Signal Processing Theory and Methods: Detection, Estimation, and Class. Thry & Apps. | ||
| Title: | MMSE JOINT DETECTION FOR AN ASYNCHRONOUS SPREAD-SPECTRUM SYSTEM BASED ON RANDOM PERMUTATIONS | ||
| Authors: | Martial Coulon; ENSEEIHT/IRIT/TéSA | ||
| Daniel Roviras; ENSEEIHT/IRIT/TéSA | |||
| Abstract: | This paper studies the joint detection of bits for a new spread-spectrum system based on random permutations. The proposed technique can be regarded as a special case of discrete Linear Periodic Time Varying filters. As any spread-spectrum technique, this method generates multi-access interference, which must be mitigated in order to retrieve the users'bits with acceptablebit-error-rate. Thus, different detection strategies must be analysed regarding their performance, their complexity and the available a priori information. In this paper, an asynchronous model is considered, and a linear minimum mean-square error (MMSE) detector fitted to this model is investigated. Theoretical and simulated results are provided, along with acomparison with the corresponding detector for CDMA systems. | ||
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