ISSN (Print) : 2319-5940 ISSN (Online) : 2278-1021 International Journal of Advanced Research in Computer and Communication Engineering Vol. 2, Issue 4, April 2013 Copyright to IJARCCE ww.ijarcce.com 1681 Satellite Communication Advancement, Issues, Challenges and Applications Dipak Misra 1 , Dinesh Kumar Misra 2 , Dr. S. P.Tripathi 3 B.Tech (ECE), SENSE,VIT,University, Vellore, Tamilnadu,India 1 PhD Research Scholar, COE,Teerthanker Mahaveer University,Moradabad,U. P., India 2 Professor & Head, CSE Department, G.B.T. University, Lucknow, U.P., India 3 Abstract: Communication in the whole of the World is revolutionized with the advent of Satellites. Satellite Communication has served mankind in many ways e.g. to predict weather, storm warning, provide wide range of communication services in the field of relaying television programs, digital data for a multitudes of business services and most recent in telephony and mobile communication. It may not surprise world community, if satellite communication links may be used for voice and fax transmission to Aircraft on International routes in near future. GPS Navigation, Global telephony, Multimedia video and internet connectivity, Earth Imaging through Remote sensing satellites for resource monitoring, Telemedicine, Tele-education services etc. are other feathers in Satellite communication applications. Satellite communication system has entered transition from point-to-point high cost, high capacity trunks communication to multipoint -to-multipoint communication with low cost. Satellite Communication has moved in many steps ahead like frequency reuse, interconnecting many ground terminals spread over the world, concept of multiple spot beam communications, Laser beam based communication through satellites and use of networks of small satellites in low earth orbit. In this paper satellite communication advancement, different application aspect present and future is discussed. Satellite communication has many application and market if we can pool our resources, come up with innovative and low cost solutions for world community. Keywords: Satellites, GPS Navigation, Remote Sensing, Telemedicine, Frequency reuse, Networks of satellites. I. INTRODUCTION Satellite communication [1] service industry has grown more rapidly than was forecasted in 1992.This growth has been a global phenomenon as the economies of world have increased and improved a great extent requiring increased communication services for both business and consumer markets. With this increased demand and recent large, rapid expansion of business, consumer terrestrial mobile and internet communication services has opened new opportunities for satellite communication. Mobile and Internet transport access businesses have stimulated the demand for new multi- state satellite constellation to serve this market on both the national and international scale. Growth in above areas coupled with the global increase in TV viewer ship and high data rate transport have been responsible for the recent and future anticipated growth. There is also new demand for integrated satellite, terrestrial communications that will enable the transport of information seamlessly across these transport media. These large and rapidly growing satellite based business opportunities have attracted the attention of government and industrial interests of many countries and these nations are making significant investments of new capital to enable them to participate in this growth market. Many countries have allocated funds for satellite R&D projects to ensure their long term presence in the commercial satellite industry. The expansion of satellites into new applications and the increased global demand for satellite communications services have attracted the attention of investment community. This has resulted in the formation of new satellite service providers and stimulated mergers and acquisitions, the creation of new companies, the formation of global partnership and the privatisation of formerly public satellite service organisations. The satellite communication industry has grown tremendously and number of professionals and range of activities have grown as well [2]. In the past, commercial communication satellite manufacturing and service provider organisations tended to be conservative and to be hesitant about inserting new technology into satellites. This has changed in response to immediate need to serve customers burgeoning demand for entertainment programming TV, mobile communications and access to high bandwidth Internet data. Industry is inserting new technology into satellites at rapid pace. Recent examples includes onboard processing and switching, more efficient solar cell, higher power components, more efficient heat dissipation techniques, electric-based station keeping thrusters, inter satellite links, large antennas, phased array