Title page for ETD etd-08012012-040139
|Type of Document
||Hayes, David Paul
||Performance analysis of VSAT networks
||Master of Science
|Ha, Tri Thuc
|Bostian, Charles W.
|Pratt, Timothy J.
- Telecommunication systems
|Date of Defense
Very small aperture terminal (VSAT) networks offer a solution to the increasing demand
for low-density voice and data communications. Spread Spectrum and
single-channel-per-carrier (SCPC) transmission techniques work well for multiple access
purposes while allowing the earth station antennas to remain small. Direct sequence
code division multiple access (DS-CDMA) is the simplest spread spectrum technique to
use in a VSAT network, since a frequency synthesizer is not required for each terminal.
This thesis examines DS-CDMA and SCPC Ku-band VSAT satellite systems for
low-density (64 kbps or less) communications. It develops methods for calculating PN
coding cross-correlation interference losses and satellite transponder effects, and it
includes these losses in a performance analysis of 50 channel full mesh and star network
architectures. It demonstrates selection of operating conditions producing optimum
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