Abstract— In general, most of communication satellites were designed to be operated in geostationary orbit. And many of them were designed in prolate dual-spin configuration. As a prolate dual-spin vehicle, they have to be stabilized against their internal energy dissipation effect. Several countries that located in southern hemisphere, has shown interest to use communication satellite. Because...

The “traditional” way of designing constellations of communications satellites in low Earth orbit is to optimize the design for a specified global capacity. This approach is based on a forecast of the expected number of users and their activity level, both of which are highly uncertain. This can lead to economic failure if the actual demand is significantly smaller than the one predicted. This ...

1:00pm-5:00pm Mini-tutorials TBD Software tools for NGS data analysis Yvette Blanche Temate-Tiagueu and Alex Zelikovsky Computational methods for advanced molecular detection and surveillance of viral transmissions and outbreaks David S. Campo and Pavel Skums Computational methods for genomics-guided immunotherapy Sahar Al Seesi and Ion Mandoiu

Recalling the Palapa domestic satellite system, as a breakthrough technology for assessing isolated areas, and triggering business activities. INTELSAT commenced the opening of new horizons for reliable international satellite communication, and Indonesia took a wise decision to join, notwithstanding its economic hardships. Indonesia, had to take crucial decisions during ITU WARC-ORB ‘85 and ’8...

This paper takes a broad view on the history and the present status of satellite communications and broadcasting. The necessary starting point of this overview is the visionary papers produced by Sir Arthur C. Clarke and John Pierce. This was the real dawn of the satellite communication era. This paper attempts to explain the “fil rouge” of the evolution of satellite technologies across six dec...

The demand for wireless communication is increasing day by day. People want a high speed of communication in less time. No one is interested in use of bunch of wires. So we move to wireless communication. As technology increases a demand also increases. Now everyone wants a fast communication from anywhere to anyone. Even rural area also requires internet facility. It is too hard to establish a...

Most small satellites operations, including those in the CubeSat community, maximize the duration of single communication passes with ground stations, but, in doing so, do not maximize the total data transferred. In this paper we examine methods to maximize data download by waiting to begin transmission at a non-intuitive high elevation angle. This elevation angle reduces the slant distance and...

In this data article, analysis of surface refractivity and water vapour density in Southeast, Nigeria were reported. The meteorological data were collected for the period of 39 years between 1973 and 2012 from National Oceanic and Atmospheric Administration (NOAA) Climatology Centre. Five locations considered in the study area includes: Enugu, Onitsha, Abakaliki, Aba and Ihiala. Descriptive sta...

As far as many consumers and businessmen and women are concerned, increasingly wireline and wireless services, including those provided by terrestrial and satellite systems, are considered to be substitutes and sometimes complements, regardless of the laws and regulations applicable to them. At the same time, many writers and even government agencies (such as the FCC) have suggested that users ...