Fast-packet vs circuit switch and bent pipe satellite network architectures
✍ Scribed by Bever, Mark ;Freitag, Joseph ;Linsky, Stuart ;Myers, James M. ;Nuber, Raymond M. ;Prieto, Jaime L. ;Wiswell, Eric R.
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 902 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0737-2884
No coin nor oath required. For personal study only.
✦ Synopsis
The Ka frequency band has the potential to enable rapid deployment of broadband multimedia services around the world. The optimal satellite payload architecture for these services depends on the needs and constraints of the Network Service Provider (NSP) and the limitations of technology. TRW has developed a methodology that enables satellite-based NSPs to understand the business implications of a variety of payload and network architectures. TRW also conducted a study to quantify the di!erences between competing architectures in terms of throughput and "nancial performance.
For many network operators, moving from a familiar &Bent Pipe' to the new generation of processing payload architectures raises concerns as to which architecture will maximize return on investment. The results reported in this paper quantify the throughput potential of a Bent Pipe, analog Circuit Switch, and Fast-Packet Switch architectures using a baseline tra$c model for geographically dispersed multimedia users. A Bent Pipe architecture is de"ned as a payload without switching. Payloads with switching are considered processed payload architectures. This paper explains the design di!erences and business analysis for broadband multimedia services. A multimedia tra$c model and economic model demonstrate why the ATM architecture generates more billable-bits per month and enhanced "nancial performance than either a Bent Pipe or Circuit Switch architecture for geographically dispersed multimedia users.