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METHOD AND APPARATUS FOR DETECTING DATA IN WIRELESS COMMUNICATION NETWORKS VIA A REDUCED COMPLEXITY TREE SEARCH
METHOD AND APPARATUS FOR DETECTING DATA IN WIRELESS COMMUNICATION NETWORKS VIA A REDUCED COMPLEXITY TREE SEARCH
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机译:通过减少复杂性树搜索在无线通信网络中检测数据的方法和装置
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摘要
An apparatus including a processor configured to receive a digital communication signal having a plurality of transmitted layers. The processor is configured to determine an estimated channel matrix based on the digital communication signal, determine a first estimated transmitted symbol vector and a mean square error matrix based on a linear analysis of the received digital communication signal. A first set of bit LLR are determined based on a LMMSE type detector and a second set of bit LLR are determined based on a novel simplified tree search process. The two sets of bit LLR are then combined and used to detect the data in the received communication signal. The simplified tree search process uses a specially formed channel shortening process to determine a set of shortened channel correlation matrices that allow the second set of bit LLR to be determined using an alternative marginalized tree search process.
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