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

THE ROLE OF GOVERNMENT-PRIVATE SECTOR PARTNERSHIPS IN VOCATIONAL TRAINING

Abstract: This research explores the role of government-private sector partnerships in enha...

Read more
CAUSES AND PREVENTION OF HAZARDS IN THE FOOD PREPARATION AREA

ABSTRACT

Occupation hazards constitute a major threat to an active workforce. Fricidences such as back...

Read more
IMPACT OF PRODUCT QUALITY ON SALES VOLUME IN NIGERIAN BOTTLING COMPANY

ABSTRACT

The research is focused on the impact of product quality on sales volume in Nigerian Bottling Company. The...

Read more
THE CONTRIBUTIONS OF INSURANCE INDUSTRY TO GROSS DOMESTIC PRODUCT (GDP) IN NIGERIA (1985 – 2010)

ABSTRACT

This work examined the contributions of the insurance industry to the gross domestic product (GDP) in Nigeria. Data for the stud...

Read more
THE PREVALENCE OF OCCUPATIONAL STRESS AMONG SECONDARY SCHOOL TEACHERS

ABSTRACT

 

Principals play a pivotal role in performance of students in...

Read more
THE ROLE OF ACCOUNTANT IN MANAGING AND LIQUIDATING DISTRESSED BANKS

Abstract

This research work examines the role of accountant in managing and liquidating distressed banks. accountant plays a significant...

Read more
INFLUENCE OF SOCIO ECONOMIC BACKGROUND ON SECONDARY SCHOOL STUDENT PERCEPTION OF THEIR SCHOOL LEARNING ENVIRONMENT IN CALABAR MUNICIPALITY, CROSS RIVER STATE

Background to the study

Socio-economic background or status refers to a person’s position in a given group, societ...

Read more
THE EFFECT OF CONTINUOUS ASSESSMENT ON ACADEMIC PERFORMANCE OF STUDENTS IN HOME ECONOMIC IN SECONDARY SCHOOLS

Abstract

Continuous assessment is an academic issue, which has been emphasized recently by the Federal Mini...

Read more
AN EXAMINATION OF EFFECT OF BANDITRY ON RURAL-URBAN MIGRATION IN NIGERIA

ABSTRACT

The main focus of this study is to examine the effect of banditry on rural-urban migration using Kaduna...

Read more
AN INVESTIGATION INTO ALM AS A KNOWLEDGE REPRESENTATION LIBRARY LANGUAGE

ABSTRACT 

Text parsing and natural language processing are well-researched and investigated areas of natural language, however, stor...

Read more
Share this page with your friends




whatsapp