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| An Improved Algorithm Based on List Sequential Detector for MIMO System |
| Sun Yan-hua; Gong Ping; Wu Wei-ling |
| Dept. of Info.Eng, Beijing Univ.of Posts and Telecom., Beijing 100876, China |
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Abstract An improved iterative detection algorithm is proposed in this paper, which introduces a new method of computing soft information based on the idea of semidefinite relaxation rather than on a list. Also a head-first list search algorithm is put forward to improve the performance of list sequential detector. Simulations show that the head-first list sequential detector outperforms the basic list sequential detector at the cost of little increasing complexity and the proposed iterative detector achieves the same performance of head-first list sequential detector but decreases the complexity.
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Received: 01 August 2005
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2007, Vol. 29 
