A Modified Adaptive Sparse Channel Estimator for OFDM Systems Based On Singular Value Decomposition

Liu Zhiyong, Wang Yirong, Liu Weicai
<span title="2016-11-30">2016</span> <i title="Science and Engineering Research Support Society"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/aoxdam2x3rcszlweqkjkp7qcyy" style="color: black;">International Journal of Future Generation Communication and Networking</a> </i> &nbsp;
In this paper, a modified adaptive sparse channel estimator based on singular value decomposition (SVD) for OFDM systems is proposed. The conventional adaptive sparsity matching pursuit (ASMP) based compressive channel estimation has bad anti-noise performance, although not needing the information of sparsity. Because using the SVD to modify the measurement matrix of CS can improve the robustness to noise. So we use the SVD to modify the measurement matrix of ASMP based compressive channel
more &raquo; ... ation. The proposed channel estimation has better robustness to noise and low error. The simulation results show that comparing with ASMP based compressive channel estimation, the proposed algorithm has 1 dB gain at MSE and 1.3 dB gain at BER.
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.14257/ijfgcn.2016.9.11.16">doi:10.14257/ijfgcn.2016.9.11.16</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/r5as4x7ejzbvzhgx6hx5bhukra">fatcat:r5as4x7ejzbvzhgx6hx5bhukra</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20180603231206/http://www.sersc.org/journals/IJFGCN/vol9_no11/16.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/6b/09/6b09b2ff95fe7d3236420f883fcd614e4ef8a138.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.14257/ijfgcn.2016.9.11.16"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> Publisher / doi.org </button> </a>