Improved Channel Estimation for Ofdm Systems in Quasi - Static Channels
نویسندگان
چکیده
A low-complexity time-domain channel estimation technique for OFDM systems is proposed. It uses a training symbol (preamble) to estimate the channel impulse response (CIR) via circular cross-correlation. An efficient CIR search window technique is also proposed to optimise the accuracy of synchronisation and channel estimation. Simulation results in quasi-static channels show that the proposed method achieves near-ideal accuracy with a complexity which is much lower than that of the MMSE technique.
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