Reducing the Leakage in OFDM Systems by Using Low Complexity DFT- Based Channel Estimation

Abstract

The proposed estimator consists of a time-domain (TD) index set estimation on the grounds that the leakage outcome followed through a low-complexity TD submit-processing to suppress the leakage. The performance and complexity of the proposed channel estimator are analyzed and established through computer simulation. Simulation outcome exhibit that the proposed estimator out performs traditional  estimators  and  provides  near- most beneficial efficiency  even as preserving the low complexity similar to the easy  DWT-head quartered channel estimator.

KEYWORDS: Channel estimation; Leakage nulling; OFDM.