Pilot Design for NC-OFDM System Based on Cross Entropy Algorithm

doi:10.3969/j.issn.1006-2475.2017.10.013

Abstract

Abstract: Cross entropy is a kind of optimization method recently which shows good performance to solve combinational optimization problems. This paper, based on Minimum Mean Square Error (MSE) and cross entropy algorithm, proposes a kind of pilot design for non-contiguous orthogonal frequency division multiplexing (NC-OFDM) system. Firstly it generates samples of pilot position by Bernoulli distribution, calculates samples of MSE, and then updates distribution parameters by updating rule. Finally it gets reasonable pilot position. Simulation shows this method could achieve good MSE performance and bit error rate (BER) performance.

Key words: cross entropy, NC-OFDM system, pilot, MSE

XU Bi-ying 1, SUN Hui 2. Pilot Design for NC-OFDM System Based on Cross Entropy Algorithm[J]. Computer and Modernization, doi: 10.3969/j.issn.1006-2475.2017.10.013.

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