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  • 标题:Multiuser Detection and Channel Estimation for Multibeam Satellite Communications
  • 本地全文:下载
  • 作者:Helmi Chaouech ; Ridha Bouallegue
  • 期刊名称:International Journal of Computer Networks & Communications
  • 印刷版ISSN:0975-2293
  • 电子版ISSN:0974-9322
  • 出版年度:2012
  • 卷号:4
  • 期号:1
  • DOI:10.5121/ijcnc.2012.4112
  • 出版社:Academy & Industry Research Collaboration Center (AIRCC)
  • 摘要:In this paper, iterative multi-user detection techniques for multi-beam communications are presented. The solutions are based on a successive interference cancellation architecture and a channel decoding to treat the co-channel interference. Beams forming and channels coefficients are estimated and updated iteratively. A developed technique of signals combining allows power improvement of the useful received signal; and then reduction of the bit error rates with low signal to noise ratios. The approach is applied to a synchronous multi-beam satellite link under an additive white Gaussian channel. Evaluation of the techniques is done with computer simulations, where a noised and multi-access environment is considered. The simulations results show the good performance of the proposed solutions.
  • 关键词:Antenna Array; Co-Channel Interference; Beams Forming; Channel Decoding; Signals Combining
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