Necessary and sufficient conditions for perfect channel shortening and implications for interference mitigation

@article{Walsh2004NecessaryAS,
  title={Necessary and sufficient conditions for perfect channel shortening and implications for interference mitigation},
  author={J. M. Walsh and R. K. Martin and A. G. Klein and N. S. Xenias and J. A. Pagnotta and C. Richard Johnson},
  journal={IEEE 5th Workshop on Signal Processing Advances in Wireless Communications, 2004.},
  year={2004},
  pages={391-395}
}
We explore the shortening of multiple channels arising from either over-sampling or from using multiple antennas between a single transmitter and receiver. Using terminology we develop, we give new necessary and sufficient conditions for perfect channel shortening (PCS). In an example, the perfect channel shortener's robustness against wide-band noise, narrow-band interferers and received signal SNR mismeasurement is compared to that of an imperfect channel shortener. The work concludes with a… CONTINUE READING

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