Pilot contamination precoding in multi-cell large scale antenna systems

  title={Pilot contamination precoding in multi-cell large scale antenna systems},
  author={Alexei E. Ashikhmin and Thomas L. Marzetta},
  journal={2012 IEEE International Symposium on Information Theory Proceedings},
An LSAS entails a large number (tens or hundreds) of base station antennas serving a much smaller number of terminals, with large gains in spectral-efficiency and energy-efficiency compared with conventional MIMO technology. Until recently it was believed that in multi-cellular LSAS, even in the asymptotic regime, as the number of service antennas tends to infinity, the performance is limited by directed inter-cellular interference. The interference results from unavoidable re-use of reverse… CONTINUE READING
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