Dual-Space Diversity over Land Mobile Satellite Channels Operating in the L and K Frequency Bands

  • Authors:

  • W. Zhuang;J.-Y. Chouinard;D. Makrakis

  • Affiliations:

  • Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1, Tel.: 5198851211/5354/ Fax: 5197463077/ E-mail: wzhuang@bbcr.uwaterloo.ca;Department of Electrical Engineering, University of Ottawa, 161 Louis Pasteur, Ottawa, Ontario, Canada K1N 6N5 chouinar@trix.genie.uottawa.ca;Department of Electrical Engineering, Lakehead University, 955 Oliver Road, Thunderbay, Ontario, Canada P7B 5E1 E-mail: dmakraki@flash.lakeheadu.ca

  • Venue:
  • Wireless Personal Communications: An International Journal
  • Year:
  • 1997

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Abstract

Land mobile satellite communication systems at Ka/K band (30/20 GHz) are attracting more andmore attention to researchers because of its frequency band availability and the possibilityof using small earth stations and satellite antennas for the systems. However, the Ka/K-bandcommunications also give significant challenges in the system design due to severe channelimpairments expected from the satellite links. In this paper, K-band channel characteristicsare studied and compared with those at L band. The channel is modeled as Rayleighmultipath fading with the line-of-sight (LOS) component following a lognormal distribution.The first and second-order statistics of the fading channel are studied. Dual-spacediversity reception is investigated to combat the flat channel fading. The bit error rateperformance of coherent binary phase shift keying (BPSK) with ideal bit and carrier phase synchronization over thefading channel at K band is evaluated theoretically and verified by computer simulations inthe case with and without diversity reception.