Paper Title:
Channel Estimation Based on Interpolation in OFDM System
  Abstract

OFDM(Orthogonal Frequency Division Multiplexing)is a new modulation technology, which can reduce multi-pass interference efficiently. It splits a high-rate data stream into a number of lower-rate data streams which can be transmitted simultaneously over a number of subcarriers. It brings high spectral efficiency. In this paper, we first introduce the channel estimation algorithm based on comb-pilot in OFDM system, and emphasis on analysis and comparison of the three kinds of interpolation methods: linear interpolation, low-pass interpolation and transform-domain interpolation. We use MATLAB to carry out the system simulation, and its results indicate that: The performance of low-pass interpolation is the best ,but it’s hard to carry out; transform-domain interpolation’s performance and complexity are both between above two methods.

  Info
Periodical
Key Engineering Materials (Volumes 439-440)
Edited by
Yanwen Wu
Pages
794-798
DOI
10.4028/www.scientific.net/KEM.439-440.794
Citation
Y. H. Cui, S. Ye, Q. R. Wu, J. H. Liu, Y. Dai, "Channel Estimation Based on Interpolation in OFDM System", Key Engineering Materials, Vols. 439-440, pp. 794-798, 2010
Online since
June 2010
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$32.00
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