TR2004-015

The Trade-off Between Processing Gains of Impulse Radio Systems in the Presence of Timing Jitter

    •  Gezici, S., Molisch, A.F., Poor, H.V., Kobayashi, H., "The Trade-off Between Processing Gains of Impulse Radio Systems in the Presence of Timing Jitter", IEEE International Conference on Communications (ICC), June 2004, vol. 6, pp. 3596-3600.
      BibTeX TR2004-015 PDF
      • @inproceedings{Gezici2004jun1,
      • author = {Gezici, S. and Molisch, A.F. and Poor, H.V. and Kobayashi, H.},
      • title = {The Trade-off Between Processing Gains of Impulse Radio Systems in the Presence of Timing Jitter},
      • booktitle = {IEEE International Conference on Communications (ICC)},
      • year = 2004,
      • volume = 6,
      • pages = {3596--3600},
      • month = jun,
      • url = {https://www.merl.com/publications/TR2004-015}
      • }
  • Research Area:

    Communications

Abstract:

In time hopping impulse radio, Nf pulses of duration Tc are transmitted for each symbol. This gives rise to two types of processing gain: (i) pulse combining gain, which is a factor Nf, and (ii) pulse spreading gain, which is Nc = Tf/Tc, where Tf is the mean interval between two subsequent pulses. This paper investigates the trade-off between these two types of processing gain with and without random polarity codes in the presence of timing jitter. Approximate expressions for bit error probability are derived for both coded and uncoded systems over additive white Gaussian noise channels and are used as the criterion to choose optimal Nf and Nc values. The effects of timing jitter and multiple access interference on the selection of optimal system parameters are explained through theoretical analysis. Simulation studies support the theoretical results.

 

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