A CATV (Cable Television)-Based High-Speed Packet-Switching Network Design.

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Abstract:

A high-speed packet-switching data network to the home can be built on an existing, unmodified, residential cable television CATV system. This thesis considers the theoretical and practical technical aspects of providing such a service and suggests a possibly system design. All network data must pass through the CATV hub, so the network design is divided into three major parts upstream transmission, downstream transmission, and access scheme. Upstream tranmission is difficult because of the high noise level on the upstream channel caused by ingress of shortwave signals and impulse noise. The noise level is increased by the CATV system topology that funnels all system noise to the headend. Several noise reduction techniques must be used simultaneously for robust upstream transmission. The downstream channel has low noise, but the data signal must be compatible with the CATV system, video signals and television receivers. Vestigial sideband data modulation is suggested for total system compatibility. Existing access schemes, such as those for local area networks and satellite networks, are unsuitable for a high-speed CATV-based network. Modified versions of two satellite access schemes are suggested as possible solutions. The best techniques for upstream transmission, downstream transmission and access scheme are combined into a single proposed system. Author

Author(s):
Feldmeier, David C.
Author Organization(s):
MASSACHUSETTS INST OF TECH CAMBRIDGE LAB FOR COMPUTER SCIENCE
Descriptive Note:
Master's thesis,
Pagination:
0143

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
MIT/LCS/TR-359
Contract/Grant Number(s):
N00014-83-K-0125
 Subject Terms
Joint Capability Areas:
JCA_6.1.1_Wired Transmission; JCA_6_Net Centric; JCA_6.1.3_Switching and Routing; JCA_6.1_Information Transport; JCA_5_Command and Control; JCA_6.3.3_Spectrum Management; JCA_6.4.1_Secure Information Exchange; JCA_1_Force Support; JCA_5.3_Planning; JCA_6.3.1_Optimized Network Functions and Resources; JCA_6.3_Net Management; JCA_6.4_Information Assurance; JCA_1.2_Force Preparation; JCA_1.2.1_Training; JCA_6.2.1_Information Sharing; JCA_6.2.2_Computing Services; JCA_4.3_Maintain; JCA_6.2.3_Core Enterprise Services; JCA_6.2_Enterprise Services; JCA_3.2_Engagement; JCA_3_Force Application
Modernization Areas:
Space; Microelectronics
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*CONTROL SYSTEMS, *DATA TRANSMISSION SYSTEMS, *COMMUNICATIONS NETWORKS, *NOISE, *RADIOFREQUENCY INTERFERENCE, *CABLE TELEVISION, *SWITCHING CIRCUITS, CLOCKS, ENERGY, SIGNAL TO NOISE RATIO, WHITE NOISE, THESES, TREES, BROADBAND, ACCESS, AREA COVERAGE, MOMENTUM, COLLISIONS, URBAN AREAS
Field(s)/Group(s):
Cybernetics, Radiofrequency Wave Propagation, Non-Radio Communications
Keyword(s):
Speeds(High), Phase distortion, Packet switching, Corona noise, Upstream transmission, Bit energy to noise ratio, MAN(Metropolitan Area Networks), Virtual disks, Impulse noise, Trunk cables, Institutional networks, Feeder cables, Gap noise, Residential networks, Qube system, Ingress noise
Report Date:
1986 Apr 01