Adaptive MBER Space-Time DFE Assisted Multiuser Detection for SDMA Systems
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| Title: | Adaptive MBER Space-Time DFE Assisted Multiuser Detection for SDMA Systems |
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| Authors: | S. Chen, A. Livingstone, L. Hanzo |
| Contributors: | The Pennsylvania State University CiteSeerX Archives |
| Source: | http://eprints.ecs.soton.ac.uk/12573/1/vtc06s-clh.pdf. |
| Collection: | CiteSeerX |
| Description: | In this contribution we propose a space-time decision feedback equalization (ST-DFE) assisted multiuser detection (MUD) scheme for multiple antenna aided space division multiple access systems. A minimum bit error rate (MBER) design is invoked for the MUD, which is shown to be capable of improving the achievable bit error rate performance over that of the minimum mean square error (MMSE) design. An adaptive MBER ST-DFE-MUD is proposed using the least bit error rate algorithm, which is demonstrated to consistently outperform the least mean square (LMS) algorithm, while achieving a lower computational complexity than the LMS algorithm for the binary signalling scheme. Simulation results demonstrate that the MBER ST-DFE-MUD is more robust to channel estimation errors as well as to error propagation imposed by decision feedback errors, compared to the MMSE ST-DFE-MUD. I. |
| Document Type: | text |
| File Description: | application/pdf |
| Language: | English |
| Relation: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.152.8164 |
| Availability: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.152.8164 http://eprints.ecs.soton.ac.uk/12573/1/vtc06s-clh.pdf |
| Rights: | Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
| Accession Number: | edsbas.E95F4793 |
| Database: | BASE |
Nájsť tento článok vo Web of Science | Abstract: | In this contribution we propose a space-time decision feedback equalization (ST-DFE) assisted multiuser detection (MUD) scheme for multiple antenna aided space division multiple access systems. A minimum bit error rate (MBER) design is invoked for the MUD, which is shown to be capable of improving the achievable bit error rate performance over that of the minimum mean square error (MMSE) design. An adaptive MBER ST-DFE-MUD is proposed using the least bit error rate algorithm, which is demonstrated to consistently outperform the least mean square (LMS) algorithm, while achieving a lower computational complexity than the LMS algorithm for the binary signalling scheme. Simulation results demonstrate that the MBER ST-DFE-MUD is more robust to channel estimation errors as well as to error propagation imposed by decision feedback errors, compared to the MMSE ST-DFE-MUD. I. |
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