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Propagation characteristics of a frequency hopped channel

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

Original languageEnglish
Title of host publicationIEE International Conference on Antennas & Propagation (ICAP93), Heriott-Watt
Publisher or commissioning bodyInstitution of Electrical Engineers (IEE)
Publication dateApr 1993
Pages861 - 864
Number of pages3
Volume2
ISBN (Print)0852965729
StatePublished

Conference

Conference8th International Conference on Antennas and Propagation
CountryUnited Kingdom
CityEdinburgh
Period1/04/93 → …

Abstract

Frequency hopping (FH) CDMA has received relatively scant attention, although recently there have been some encouraging publications which claim that FH can achieve a similar performance advantage to that claimed by proponents of direct sequence (DS) CDMA. In order to allow a more detailed investigation of a feasible rival FH architecture, and select the modulation format and coding scheme to optimise its performance, essential data about the characteristics of a frequency hopped channel is required. The paper describes measurements undertaken in the City of Bristol to investigate the FH environment. The results show that although the long term statistics, such as the cumulative distribution, exhibit negligible differences between hopped and fixed frequency operation, the instantaneous effects differ considerably. These include the level crossing rate and mean fade duration, and could significantly influence the requirements for FH system design

Additional information

Conference Proceedings/Title of Journal: IEE International Conference on Antennas & Propagation (ICAP93) Rose publication type: Conference contribution Sponsorship: We would like to acknowledge the invaluable help of Dr. T. Busby, Mr. R.J. Wilkinson and Mr. S.G. Chard for their assistance in preparing the channel sounding equipment, and to Dr. J Cheung for useful advice during the of the results. We would also like to thank Miss R.C. Thomas and Mr C. Simmonds for their help in undertaking these field trials

Research areas

  • code division multiple access, encoding, frequency agility, mobile radio systems

Event

8th International Conference on Antennas and Propagation

Duration1 Apr 1993 → …
CountryUnited Kingdom
CityEdinburgh

Event: Conference

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