Low-Complexity wavelet Based Channel Estimation with low Leakage for OFDM Systems

Low-Complexity wavelet Based Channel Estimation with low Leakage for OFDM Systems
Author(s):
Md Reshma, K.Thirupathi
Keywords:
wavelet transforms, OFDM, low leakage and channel estimation
Abstract
In this paper, we describes, a low-complexity wavelet -based channel estimator with low leakage is proposed for OFDM systems using virtual subcarriers. In this paper, a new threshold based method using wavelet decomposition will be proposed which is based on an initial LS estimation technique. The reported simulation results show that the proposed method has better performance compared to the other methods such as Lee Method that has been published recently.. The performance and complexity of the proposed channel estimator are analyzed and verified by computer simulation. Simulation results show that the proposed estimator outperforms conventional estimators and provides near-optimal performance while keeping the low complexity comparable to the simple wavelet based channel estimator.
Article Details
Unique Paper ID: 144211 Publication Volume & Issue: Volume 3, Issue 8 Page(s): 81 - 86
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