Linearly constrained interference rejection for improved spread spectrum performance

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

An adaptive technique is presented that utilizes the known characteristics of the pseudo-noise spread spectrum sequence to enhance the detection capabilities diminished by interference excision. The new technique uses a constrained excision to decrease the bit error rate. The formation of constraint surfaces is the basis of the projection technique used in the adaptive update of the excision filter. The constrained updating of the filter coefficients retains the interference rejection properties of the excision filter while decreasing the variance of the decision variable. The filter operates without training bits and requires little additional computational processing cost over a standard adaptive excision filter. Simulation results demonstrate the mean square error improvement obtained by using the constrained excision filter.

Original languageEnglish (US)
Title of host publication1992 International Conference on Communications
Subtitle of host publicationDiscovering a New World of Communications, SUPERCOMM/ICC 1992 - Conference Record
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1257-1261
Number of pages5
ISBN (Electronic)078030599X
DOIs
StatePublished - Jan 1 1992
Event1992 IEEE International Conference on Communications: Discovering a New World of Communications, SUPERCOMM/ICC 1992 - Chicago, United States
Duration: Jun 14 1992Jun 18 1992

Publication series

NameIEEE International Conference on Communications
ISSN (Print)1550-3607

Conference

Conference1992 IEEE International Conference on Communications: Discovering a New World of Communications, SUPERCOMM/ICC 1992
CountryUnited States
CityChicago
Period6/14/926/18/92

Fingerprint

Adaptive filters
Mean square error
Bit error rate
Processing
Costs

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Cite this

Doherty, J. F. (1992). Linearly constrained interference rejection for improved spread spectrum performance. In 1992 International Conference on Communications: Discovering a New World of Communications, SUPERCOMM/ICC 1992 - Conference Record (pp. 1257-1261). [268039] (IEEE International Conference on Communications). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICC.1992.268039
Doherty, John F. / Linearly constrained interference rejection for improved spread spectrum performance. 1992 International Conference on Communications: Discovering a New World of Communications, SUPERCOMM/ICC 1992 - Conference Record. Institute of Electrical and Electronics Engineers Inc., 1992. pp. 1257-1261 (IEEE International Conference on Communications).
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Doherty, JF 1992, Linearly constrained interference rejection for improved spread spectrum performance. in 1992 International Conference on Communications: Discovering a New World of Communications, SUPERCOMM/ICC 1992 - Conference Record., 268039, IEEE International Conference on Communications, Institute of Electrical and Electronics Engineers Inc., pp. 1257-1261, 1992 IEEE International Conference on Communications: Discovering a New World of Communications, SUPERCOMM/ICC 1992, Chicago, United States, 6/14/92. https://doi.org/10.1109/ICC.1992.268039

Linearly constrained interference rejection for improved spread spectrum performance. / Doherty, John F.

1992 International Conference on Communications: Discovering a New World of Communications, SUPERCOMM/ICC 1992 - Conference Record. Institute of Electrical and Electronics Engineers Inc., 1992. p. 1257-1261 268039 (IEEE International Conference on Communications).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - An adaptive technique is presented that utilizes the known characteristics of the pseudo-noise spread spectrum sequence to enhance the detection capabilities diminished by interference excision. The new technique uses a constrained excision to decrease the bit error rate. The formation of constraint surfaces is the basis of the projection technique used in the adaptive update of the excision filter. The constrained updating of the filter coefficients retains the interference rejection properties of the excision filter while decreasing the variance of the decision variable. The filter operates without training bits and requires little additional computational processing cost over a standard adaptive excision filter. Simulation results demonstrate the mean square error improvement obtained by using the constrained excision filter.

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Doherty JF. Linearly constrained interference rejection for improved spread spectrum performance. In 1992 International Conference on Communications: Discovering a New World of Communications, SUPERCOMM/ICC 1992 - Conference Record. Institute of Electrical and Electronics Engineers Inc. 1992. p. 1257-1261. 268039. (IEEE International Conference on Communications). https://doi.org/10.1109/ICC.1992.268039