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Power line communication is a promising candidate of smart grid applications. Organizations such as IEEE and ITU-T have published standards to cover applications of power line communication in smart grid. However, recent research reveals that indoor power line channel is a time-varying channel which may cause severe intercarrier interference to the OFDM systems in those standards. It is known that...
In this paper, we investigate the impact of the asynchronism on the performance of a Cognitive Radio (CR) network, using the underlay paradigm. We are also compareing this effect depending on which modulation technique we are using. We provide a new the theoretical aspect of interference analysis in the context of orthogonal frequency division multiplexing (OFDM) and the Filter Bank Multicarrier (FBMC)...
According to the existing drawbacks of SC algorithm with a peak plateau and Minn and Park algorithms with side peaks, an improved OFDM synchronization algorithm is proposed based on training symbol. On the basis of the defect analysis of traditional methods, a new sequence is presented with conjugate symmetric structure and a new timing metric function is adopted with multiplication two correlation...
In this paper, the convergence-enhanced subspace channel estimation technique is investigated for MIMO-OFDM systems. The perturbation of noise subspace is inversely proportional to the number of OFDM symbols. Using the block circular property of the channel matrix, we propose the cyclic repetition method (CRM) to generate a group of equivalent signals for each OFDM symbol. The subspace channel estimation...
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