By Sastri L. Kota
Broadband satellite tv for pc Communications for net Access is a platforms engineering method for satellite tv for pc verbal exchange networks. It discusses the implementation of net functions that contain community layout matters often addressed in average enterprises. numerous protocols for IP- and ATM-based networks are tested and a comparative functionality overview of other possible choices is defined. this technique may be utilized to comparable reviews over the other delivery medium.
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Additional info for Broadband Satellite Communications for Internet Access
Created by the Internet2 community, Abilene connects regional network aggregation points-ealled gigaPoPs-to provide advanced network services to over 220 Internet2 university, corporate, and affiliate member institutions in all 50 states, the District of Columbia, and Puerto Rico. The current network is a primarily OC-192c (10 Gbps) backbone employing optical transport technology and advanced high-performance routers. 99% reliability. The network plans to change the technology focus from SONET to dense wavelength division multiplexing (DWDM) increasing the optical fiber capacity.
In the early 1970s, ARPA began to explore two alternative applications of packet switching technology based on the use of synchronous satellites (SATNET) and ground-based packet radio (PRNET). Linking these two networks and the ARPANET as separate and independent networks resulted in the creation of the Internet program . These two systems differed in significant ways from the ARPANET so as to take advantage of the broadcast and wireless aspects of radio communications. Originally, SATNET software was to be embedded into an ARPANET packet switch, and the two networks Overview of Broadband Satellite Networks 7 interworked through memory-to-memory transfers within the packet switch .
Mobile communications are supported by second generation, digital cellular Global Service for Mobile Communications (GSM) and, data service by Generic Packet Radio Services (GPRS). Third generation systems such as IMT-2000 can provide 2 Mbps and 144 Kbps indoor and vehicular environments. Even fourth and fifth generation systems are being studied to provide data rates 2-20 Mbps and 20-100 Mbps respectively. Several broadband satellite networks at Ka-band are planned and being developed to provide such global connectivity for both fixed satellite service (FSS) and mobile satellite service (MSS) using Geosynchronous (GSO) and Non-Geosynchronous (NGSO) satellites .