Open space mathematical model for the mobile satellite L-band signal in Sarawak using Global Positioning System technology

The effect of ionosphere on mobile satellite (MS) L-band signal which are propagated from the transmitting satellite to the receiver over the equatorial region has attracted much interest. Sarawak which is located near the equatorial region has been selected for the purpose of this research. By means of data acquisition system using the Global Positioning System (GPS) technology, data measurement and analysis has been carried out at the Universiti Malaysia Sarawak campus in early months of 2010. The results have been presented in the forms of received signal performance, fading characteristics and complementary cumulative distribution function of certain GPS satellites over the sky of Sarawak. A general mathematical model representing the signal strength for the open space environment in equatorial region has been developed. The availability of more satellite propagation data in different places of equatorial region will improve the MS model and quality of service perceived by MS users.

[1]  Ray E. Sheriff,et al.  Mobile Satellite Communication Networks: Sheriff/Satellite , 2001 .

[2]  飯田 尚志,et al.  Satellite communications : system and its design technology , 2000 .

[3]  Julius Goldhirsh,et al.  An Overview of the Revised Mobile Satellite Handbook. 'Propagation Effects for Land Mobile Satellite Systems: Overview of Experimental and Modeling Results' , 1997 .

[4]  Mala S. Bagiya,et al.  TEC variations during low solar activity period (2005–2007) near the Equatorial Ionospheric Anomaly Crest region in India , 2009 .

[5]  Ernest K. Smith,et al.  Ionospheric effects on satellite land mobile systems , 2002 .

[6]  Michael Peter Kennedy.  The Global Positioning System and GIS , 1996 .

[7]  Kiyotaka Fujisaki,et al.  Empirical study on mobile satellite link using portable GPS receiver(Advanced Technology-I) , 2006 .

[8]  Frank van Diggelen,et al.  A-GPS: Assisted GPS, GNSS, and SBAS , 2009 .

[9]  Louis J. Ippolito,et al.  Satellite communications systems engineering : atmospheric effects, satellite link design, and system performance , 2008 .

[10]  Ray E. Sheriff,et al.  Mobile Satellite Communication Networks , 2001 .

[11]  IONOSPHERIC PROPAGATION DATA AND PREDICTION METHODS REQUIRED FOR THE DESIGN OF SATELLITE SERVICES AND SYSTEMS , 1999 .

[12]  M. Ismail,et al.  Investigation of the GPS signals ionospheric correction: Ionospheric TEC prediction over equatorial , 2007, 2007 IEEE International Conference on Telecommunications and Malaysia International Conference on Communications.

[13]  Elliott D. Kaplan.  Understanding GPS : principles and applications , 1996 .

[14]  Wan Azlan Wan Zainal Abidin,et al.  Characteristic of mobile satellite l-band signal in mid-latitude region:GPS approach , 2011 .

[15]  G. Maral,et al.  Satellite Communications Systems , 1986 .