This paper proposes novel satellite-based wireless sensor networks (WSNs), which integrate the WSN with the cognitive satellite terrestrial network. Having the ability to provide seamless network access and alleviate the spectrum scarcity, cognitive satellite terrestrial networks are considered as a promising candidate for future wireless networks with emerging requirements of ubiquitous broadb...

The enormous growth for Wireless broadband services and huge take up of mobile technology demands for higher data rate services.For a communication network to be successful only provisioning of high data rates alone is not sufficient, but also should provide wide coverage.Both satellite and terrestrial networks cannot guarantee this on their own. This incapability is attributed to capacity of c...

To assist in the design and understanding of future global networks, this paper describes the practical and simulation experiences gained from a TCP/IP on ATM network over a high speed satellite link and presents performance comparison studies of such networks with the same host/traffic configurations over local area (LAN) and wide area (WAN) networks. It was found that the satellite systems de...

Abstmct Satellite networks provide global coverage and support a wide range of services. Low Earth Orbit (LEO) satellites provide short round trip delays and are becoming increasingly important. One of the challenges in LEO satellite networks is the development of specialized and efflcient routing algorithms. In this work, a datagram routing algorithm for LEO satellite networks is introduced. T...

Satellite-terrestrial (ST) networks, in which many nodes are interconnected by both satellite and terrestrial networks, can efficiently support multicast services. This is because satellite broadcasting is suitable for a large multicast group and a terrestrial network is suitable for a small multicast group. An ST network requires a multicast routing algorithm that can select the appropriate sa...

LEO satellite networks play a very important role in broadcasting Internet and connecting remote places at the time of natural calamities. Routing plays a very important role in faster data transfer by taking shortest path. LEO satellite networks are the preferred choice due to less propagation delay and packet loss as compared to GEO satellite network. The multimedia applications and live tran...

As an initial step in exploring the opportunities afforded by the merging of satellite and terrestrial networks, Bellcore and JPL conducted several experiments utilizing Bellcore’s experimental Personal Communications System, NASA’s Advanced Communications Technology Satellite (ACTS) and JPL’s ACTS Mobile Terminal. These experiments provided valuable information on the applications, interfaces,...

0163-6804/99/$10.00 © 1999 IEEE e are in the midst of a global information revolution brought about by the evolution of digital technology. The enormous strides in digital technology and its applications have fundamentally changed the way in which information is generated, processed, stored, and transported. The resulting information infrastructure will produce profound changes in all aspects o...

Satellite networking is different from wired or wireless networks. The behavior and the performance of TCP/IP in normal wireless network as well as in wired network are different from one another. The TCP/IP protocol was not designed to perform well over high-latency or noisy channels so its performance over satellite networks are totally different. Each satellite networks/constellations have d...