14 Available online at www.ejournals.uofk.edu UofKEJ Vol. 11 Issue 2 pp. 7- 13 (August 2021) UNIVERSITY OF KHARTOUM ENGINEERING JOURNAL (UofKEJ) Design and Simulation of Ground Station (GS) Television Channel (TV CH) Group Abdallah Tagalser Mohammed 1 , Amin Babiker A/Nabi Mustafa 1 , Ashraf A. Osman 2 *1.Dept. of Telecommunication Engineering *2.Dept. of Electrical Engineering, College of Engineering Faculty of Engineering California State University at AL-Neleen University, AL-Neleen Sacramento, CA, USA (E-mail: abdallah.Alser@gmail.com amin31766@gmail.com, Ashrafosman08gmail.com) Abstract: The Multiple Channel per Carrier (MCPC) is considered an efficient alternative when used in Ground Station (GS) TV channel stations as it accommodate multiple channel on a limited frequency range. The MCPC technique has been widely used worldwide due to its efficiency. The MCPC technique offers exemplary performance over the traditionally Single channel Per Carrier (SCPC) when considering system accuracy, time, and cost. In this study, the MCPC static mode technique has been investigated using MATLAB tool to simulate a four TV CH system. The GS transmitter and receiver components referenced to four explicit points representing the number of channels carried by the satellite. These components have been constructed and observed using Spectrum Analyzer. Keywords: ground stations, satellites, path loss, MCR, CHTV. INTRODUCTION The Multiple Channel per Carrier (MCPC) communication technique offers an efficient alternative to be used in the Ground Station (GS) broadcasting TV channel stations. It has been widely used worldwide. The MCPC is a frequency division multiple access (FDMA) technique. It is considered a suitable alternative when stringent frequency budgets exist which is very typical situation in developing countries. The MCPC technique is advantageous when it comes to data rate flexibility to maintain broadcast quality [1]. In this study, the MCPC static mode technique has been investigated using MATLAB tool to simulate a four channel TV CH system. The GS transmitter and receiver components referenced to four explicit points representing the number of channels carried by the satellite. These components have been constructed and observed using Spectrum Analyzer. Chavan and Jadhav[2] have reported on successful implementation and simulation of digital video broadcasting- satellite (DVB - S) channel coding and decoding using MATLAB. The implementation of channel coder and decoder and simulations results were in agreement with modulation error rates (MER). It was found that simulation errors were attributed to finite data length as opposed to continuous data streams in real digital television broadcast. Colavolpe et. al. [3] have studied the achievable rates by single user in multi-beam satellite scenarios. The authors have addressed the problem of multiple user detection in the forward link of a multi-beam satellite system in the presence of strong interference in the common channel. An alternative technique for a single user discovery with strongest interference signal is treated. The authors reported that the technique can greatly increase the achievable rate but at the expense of higher computational complexity. S. Cioni et. al. [4] have studied 2 nd generation satellite digital video broadcasting (DVB-S2) with a goal of improving spectral efficiency. The authors have addressed the problem of optimizing user bandwidth taking into account realistic satellite broadcasting channel. On the receiver side two different demodulation techniques were compared. It was found that there was a slight independence from the selected roll-off value. The attainable gain in the spectrum efficiency was about 8% to 10% by optimizing user bandwidth and by choosing proper equalizer. Also, the impact of increased user bandwidth in terms of the output multiplexer OMUX dissipated power and found insignificant to the technology used in the study. The digital modulation (dvs2 (8QPSK)) and the area of the channels are included in the mathematical modeling, while transmitter and receiver aspects were not considered. Moreover, the relocation strategy where the signals serving two user packages in implemented using the time division multiplexing (TDM) method. It was shown that this approach is effective at low signal-to-noise ratio. The resolution shape in the image and the number of the channel in the frequency space being higher or less were not considered. The market for satellite communication within African countries has been investigated by multiple researchers. It has been reported by P. Galace [5] that all the indicators are pointing towards a vibrant market for satellite services for Africa. The risks for these markets are the danger of overcapacity and over regulation. However, if the African region was left to normal market forces it should be a good market to invest in. Nevertheless, many African countries are struggling to catch up and fully utilize satellite communications to its fullest capacity. For example, the Sudan which is a sub-saharan country with a vast area over 1.8million square kilometers, and a population of 43million (2018 estimate) represent a good study case to investigate to highlight some of the issues and difficulties. The Sudan population is dispersed over the wide area of land that necessitate effective communication links