| Successive quadratic programming multiuser detector |
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| 作者姓名： | References： |
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| 作者单位： | Mu Xuewen （Dept. of Applied Mathematics, Xidian Univ., Xi'an 710071, P. R. China） ;
Zhang Yaling（Dept. of Computer Science and Technology, Xi'an Univ. of Science and Technology, Xi'an 710054, P. R. China） ;
Liu Sanyang（Dept. of Applied Mathematics, Xidian Univ., Xi'an 710071, P. R. China） ; |
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| 摘 要： | Based on the semidefinite programming relaxation of the CDMA maximum likelihood multiuser detection problem, a detection strategy by the successive quadratic programming algorithm is presented. Coupled with the randomized cut generation scheme, the suboptimal solution of the multiuser detection problem in obtained. Compared to the interior point methods previously reported based on semidefmite programming, simulations demonstrate that the successive quadratic programming algorithm often yields the similar BER performances of the multiuser detection problem. But the average CPU time of this approach is significantly reduced.
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| 关 键 词： | 码分多址 多用户检测 序列二次规划 特征波形 |
| 收稿时间： | 1 November 2005 |
Successive quadratic programming multiuser detector |
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| Mu Xuewen,Zhang Yaling,Liu Sanyang.Successive quadratic programming multiuser detector[J].Journal of Systems Engineering and Electronics,2007,18(1):8-13. |
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| Authors: | Mu Xuewen Zhang Yaling Liu Sanyang |
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| Institution: | 1. Dept. of Applied Mathematics, Xidian Univ., Xi'an 710071, P. R. China
2. Dept. of Computer Science and Technology, Xi'an Univ. of Science and Technology, Xi'an 710054, P. R. China |
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| Abstract: | Based on the semidefinite programming relaxation of the CDMA maximum likelihood multiuser detection problem, a detection strategy by the successive quadratic programming algorithm is presented. Coupled with the randomized cut generation scheme, the suboptimal solution of the multiuser detection problem in obtained. Compared to the interior point methods previously reported based on semidefinite programming, simulations demonstrate that the successive quadratic programming algorithm often yields the similar BER performances of the multiuser detection problem. But the average CPU time of this approach is significantly reduced. |
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| Keywords: | Code division multiple access Multiuser detection Semidefinite programming Successive quadratic programming |
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