A Hybrid Multiuser Detector Based on MMSE and AFSA for TDRS System Forward Link
This study mainly focuses on multiuser detection in tracking and data relay satellite (TDRS) system forward link. Minimum mean square error (MMSE) is a low complexity multiuser detection method, but MMSE detector cannot achieve satisfactory bit error ratio and near-far resistance, whereas artificial...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2014-01-01
|
| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/620617 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832552677889802240 |
|---|---|
| author | Zhendong Yin Xu Jiang Zhilu Wu Xiaohui Liu |
| author_facet | Zhendong Yin Xu Jiang Zhilu Wu Xiaohui Liu |
| author_sort | Zhendong Yin |
| collection | DOAJ |
| description | This study mainly focuses on multiuser detection in tracking and data relay satellite (TDRS) system forward link. Minimum mean square error (MMSE) is a low complexity multiuser detection method, but MMSE detector cannot achieve satisfactory bit error ratio and near-far resistance, whereas artificial fish swarm algorithm (AFSA) is expert in optimization and it can realize the global convergence efficiently. Therefore, a hybrid multiuser detector based on MMSE and AFSA (MMSE-AFSA) is proposed in this paper. The result of MMSE and its modified formations are used as the initial values of artificial fishes to accelerate the speed of global convergence and reduce the iteration times for AFSA. The simulation results show that the bit error ratio and near-far resistance performances of the proposed detector are much better, compared with MF, DEC, and MMSE, and are quite close to OMD. Furthermore, the proposed MMSE-AFSA detector also has a large system capacity. |
| format | Article |
| id | doaj-art-f840948baf1e4902a3e843777b5b62e6 |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-f840948baf1e4902a3e843777b5b62e62025-02-03T05:58:15ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/620617620617A Hybrid Multiuser Detector Based on MMSE and AFSA for TDRS System Forward LinkZhendong Yin0Xu Jiang1Zhilu Wu2Xiaohui Liu3School of Electronics and Information Engineering, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Electronics and Information Engineering, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Electronics and Information Engineering, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Electronics and Information Engineering, Harbin Institute of Technology, Harbin 150001, ChinaThis study mainly focuses on multiuser detection in tracking and data relay satellite (TDRS) system forward link. Minimum mean square error (MMSE) is a low complexity multiuser detection method, but MMSE detector cannot achieve satisfactory bit error ratio and near-far resistance, whereas artificial fish swarm algorithm (AFSA) is expert in optimization and it can realize the global convergence efficiently. Therefore, a hybrid multiuser detector based on MMSE and AFSA (MMSE-AFSA) is proposed in this paper. The result of MMSE and its modified formations are used as the initial values of artificial fishes to accelerate the speed of global convergence and reduce the iteration times for AFSA. The simulation results show that the bit error ratio and near-far resistance performances of the proposed detector are much better, compared with MF, DEC, and MMSE, and are quite close to OMD. Furthermore, the proposed MMSE-AFSA detector also has a large system capacity.http://dx.doi.org/10.1155/2014/620617 |
| spellingShingle | Zhendong Yin Xu Jiang Zhilu Wu Xiaohui Liu A Hybrid Multiuser Detector Based on MMSE and AFSA for TDRS System Forward Link The Scientific World Journal |
| title | A Hybrid Multiuser Detector Based on MMSE and AFSA for TDRS System Forward Link |
| title_full | A Hybrid Multiuser Detector Based on MMSE and AFSA for TDRS System Forward Link |
| title_fullStr | A Hybrid Multiuser Detector Based on MMSE and AFSA for TDRS System Forward Link |
| title_full_unstemmed | A Hybrid Multiuser Detector Based on MMSE and AFSA for TDRS System Forward Link |
| title_short | A Hybrid Multiuser Detector Based on MMSE and AFSA for TDRS System Forward Link |
| title_sort | hybrid multiuser detector based on mmse and afsa for tdrs system forward link |
| url | http://dx.doi.org/10.1155/2014/620617 |
| work_keys_str_mv | AT zhendongyin ahybridmultiuserdetectorbasedonmmseandafsafortdrssystemforwardlink AT xujiang ahybridmultiuserdetectorbasedonmmseandafsafortdrssystemforwardlink AT zhiluwu ahybridmultiuserdetectorbasedonmmseandafsafortdrssystemforwardlink AT xiaohuiliu ahybridmultiuserdetectorbasedonmmseandafsafortdrssystemforwardlink AT zhendongyin hybridmultiuserdetectorbasedonmmseandafsafortdrssystemforwardlink AT xujiang hybridmultiuserdetectorbasedonmmseandafsafortdrssystemforwardlink AT zhiluwu hybridmultiuserdetectorbasedonmmseandafsafortdrssystemforwardlink AT xiaohuiliu hybridmultiuserdetectorbasedonmmseandafsafortdrssystemforwardlink |