0704-883-0675     |      dataprojectng@gmail.com

STUDIES OF PROPAGATION IMPAIRMENTS FOR FIXED SATELLITE COMMUNICATION LINKS AT THE MICROWAVE FREQUENCIES IN NIGERIA

  • Project Research
  • 1-5 Chapters
  • Abstract : Available
  • Table of Content: Available
  • Reference Style: APA
  • Recommended for : Student Researchers
  • NGN 3000

ABSTRACT

The study investigates the effect of propagation impairments such as rain, cloud, gases and tropospheric scintillation on fixed satellite communication link on earth-space path for frequencies between 10 and 50 GHz at Ku, Ka and V bands for 37 locations in Nigeria. Two standard elevation angles of 50, 550 as well as some elevation angles for links to recently launched Nigeria Communication Satellite, (NigComsat-1) were used in the computation of the propagation impairments for the 37 locations. Linearly and circularly polarized waves were considered. The International Telecommunication Union Radiowave Propagation models (ITU-RP) were used in the investigation of the propagation impairments. The study is divided into three parts; firstly, the collection and analysis of meteorological data from Tropical Rain Measurement Mission (TRMM) and Atmospheric Infrared Sounder (AIRS) satellites such as rain accumulation, profiles of temperature, pressure, and relative humidity, surface temperature and pressure were validated with the available ground data in Nigeria to form statistics on monthly and annual basis. These are reprocessed to derive propagation parameters, such as; one-minute rainfall rate, water vapour density, total cloud liquid water content, and integrated water vapour content.  Secondly, an appropriate ITU-RP propagation model was selected for each of the propagation impairment and was used to calculate each attenuation distribution for a percentage of time unavailability. Thirdly, the attenuation due to all impairments were combined based on the annual cumulative distribution and percentage of time unavailability between 0.01 to 10%.  The calculation of the propagation parameters are based on the measured mean annual data in each location for the period of 4 to 9 years. Propagation impairments were also computed at Ku, Ka and V bands for links to NigComsat-1 at 0.01 to 10% of time unavailability in an average year. The results of all impairment were compared on regional basis by using a colour chart for all the 37 locations in Nigeria. The results of the predicted propagation impairments are as follows: rain attenuation is highly severe in Abakaliki the South-East (SE) region followed, in descending order, by Yenagoa the South-South (SS), Ibadan South-West (SW), Jos Middle-Belt (MB), Damaturu North-East (NE), and Kastina North-West (NW) regions. Cloud attenuation is highly severe in Abakaliki the SE region followed, in descending order, by Jos (MB), Gombe (NE), Dutse (NW), Ikeja (SW), and Calabar (SS) regions. Gaseous attenuation is highly severe in Calabar the (SS regions) followed, in descending order, by Ikeja (SW), Abakaliki (SE), Abuja (MB), Dutse the (NE) and Kastina (NW) regions. Tropospheric scintillation is very high in Calabar (the SS region) followed, in descending order, by Ikeja (SW), Owerri (SE), Abuja (MB), Dutse (NE) and Kastina (NW) regions. Combined impairments due to multiple sources of simultaneously occurring atmospheric attenuation is highly severe in Abakaliki the (SE region) followed, in descending order, by Uyo (SS), Ikeja the (SW), Markudi (MB), Maiduguri (NE) and Katsina (NW) regions.  For links to NigComsat-1 the combined impairments due to multiple sources of simultaneously occurring atmospheric attenuation is highly severe in Yenagoa the (SS region ) followed, in descending order, by Owerri (SE), Ibadan (SW), Jos (MB), Damaturu the (NE), and Katsina (NW) regions. Overall, Sokoto and Katsina appear as good locations to site fixed satellite earth stations (operating at Ku band and above) for deep space exploration as the results obtained showed consistently that the two locations are less affected by all propagation impairments investigated.





Related Project Materials

IMPACT OF EARLY CHILDHOOD EDUCATION (ECE) EXPERIENCES ON SCHOOL ENGAGEMENT AND ACADEMIC ACHIEVEMENT OF CHILDREN

Abstract: This research examines the impact of early childhood education (ECE) experiences on subsequent sch...

Read more
SURVEY OF THE EFFECTS OF TRAINING AND DEVELOPMENT ON THE PRODUCTIVITY OF SECRETARIAL STAFF AT UNION BANK OF NIGERIA PLC

ABSTRACT

One of the main ways organizations invest in the work force for greater returns today and even future is throug...

Read more
ASSESSMENT OF THE ADVENT AND DEVELOPMENT OF ISLAM AMONG JUKUN PEOPLE IN SOUTHERN TARABA, NIGERIA

ABSTRACT

The research titled Assessment of the Advent and Development of Islam among Jukun People in Southern Taraba, Taraba State Nigeri...

Read more
COMPUTERIZED LAND INFORMATION SYSTEM

 

Abstract

Land is a free gift of nature and a factor of production, land tenure is the name given, parti...

Read more
ASSESSMENT OF THE AFRICAN UNION AND RESOLUTION OF THE POST 2010-2011 ELECTION CRISIS IN COTE D’IVOIRE

INTRODUCTION
The African Union (AU) was established in 2001 to replace the Organization of African Unity (...

Read more
AN ASSESSMENT OF TEACHERS EDUCATIONAL QUALIFICATION AND ITS IMPACT ON THE PERFORMANCE OF SECONDARY SCHOOL STUDENTS IN ECONOMICS

Background to the Study

In any developing country, it is critical to describe the nature and trajectory...

Read more
THE CAUSES AND EFFECT OF COVID 19 ON EDUCATION IN NIGERIA

ABSTRACT

This study examined the causes and effect of Covid-19 on education in Nigeria. This study was guided by the following objectives...

Read more
AN EVALUATION OF THE INLAND TRANSPORTATION AND ITS EFFECT ON LOGISTICS IN NIGERIA

 Abstract

This study is on evaluation of the inland transportation and its effect on logistics in Nigeria. The tota...

Read more
EXTENT OF UTILIZATION OF ICT RESOURCES AND ITS PERCEIVED CONTRIBUTIONS TO BUSINESS EDUCATION IN SOUTH-WEST NIGERIA

Background to the Study

Education has for long been recognized as a basic instrument of economic growth, social development and technol...

Read more
A STATISTICAL ANALYSIS OF ROAD ACCIDENTS IN NIGERIA (FEDERAL ROAD SAFETY CORPS ONITSHA, ANAMBRA STATE 2002-2015)

ABSTRACT

The research work is undertaken on statistical Analysis of Accident in Nigeria having realized the alarming rat...

Read more
Share this page with your friends




whatsapp