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Signal Detection for 3GPP LTE Downlink: Algorithm and Implementation

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Executive Summary

In this paper, the authors investigate an efficient signal detection algorithm, which combines Lattice Reduction (LR) and List Decoding (LD) techniques for the 3rd generation Long Term Evolution (LTE) downlink systems. The resulting detector, called LRLD based detector, is carried out within the framework of Successive Interference Cancellation (SIC), which takes full advantages of the reliable LR detection. They then extend their studies to the implementation possibility of the LRLD based detector and provide reference for the possible real silicon implementation. Simulation results show that the proposed detector provides a near Maximum Likelihood (ML) performance with a significantly reduced complexity.

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