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| An Adaptive Iterative Detection and Decoding Algorithm for MIMO Systems |
| Han Xiang; Zhao Dan; Wei Ji-bo; Wang Jian-xin |
| Dept of Electronic Science and Engineering, National University of Defence Technology, Changsha 410073, China |
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Abstract To further reduce the redundancy of the existing non-exhaustive list MAP detection algorithms, which is induced by defining a fixed and large list size, an Adaptive Size List Sphere Decoding (ASLSD) algorithm is proposed. Through updating radius and setting stop criterion, the resulted detection list has a variable length which is adaptive with the SNR and the iteration. Moreover, by combining LSD with a list, the repeated detection with different radius is avoided. Simulation shows that with slight loss in performance, the proposed algorithm leads to a much shortened detection list, which means a simplified receiver.
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Received: 06 September 2006
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2008, Vol. 30 
