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The multiband orthogonal frequency division multiplexing ultra-wideband (MB-OFDM UWB) system suffered from the narrowband interference (NBI) due to the presence of coexistence communication system, such as worldwide interoperability for microwave access (WiMAX). If we deal with the NBI before the receiver, the performance of MB-OFDM UWB system can be significantly improved. The NBI cancellation algorithms...
This paper proposes a new blind channel estimation method for orthogonal frequency division multiplexing (OFDM) systems. The algorithm makes use of the redundancy introduced by the cyclic prefix to identify the channel based on a subspace approach. In order to improve its performance, the algorithm uses the method of interception and smoothness of signal vector. The proposed algorithm does not require...
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