Accession Number:

ADA434120

Title:

Strategies for Optimizing Bandwidth Efficiency

Descriptive Note:

Research paper

Corporate Author:

SPACE AND NAVAL WARFARE SYSTEMS CENTER SAN DIEGO CA

Personal Author(s):

Report Date:

2001-08-01

Pagination or Media Count:

9.0

Abstract:

To optimize bandwidth efficiency, the natural limitations of each network-supported data type must be overcome or mitigated. This paper discusses issues affecting bandwidth efficiency through the U.S. Navys bandwidth-constrained wide-area network WAN. The paper details the prevalent data types found in the naval environment and describes the characteristics associated with each data type. Commercial, standards-based link layer protocols that have widespread application in Navy networks also are described. Finally, forward error correction and issues surrounding bandwidth efficiency are discussed. As with all aspects of an engineered solution, engineers must chose the best tools to confront each aspect of the link design. Because of the economics and maturity of the technology, Ethernet is a clear choice in the local area networks, but falls short in the wide area. Point-to-Point Protocol PPP is a good choice if all of the applications supported by the network are Internet Protocol-based, but PPP falls short for a general-purpose network that supports various data types. With the technology currently available, Asynchronous Transfer Mode ATM is the only technology discussed that can support a truly converged network supporting voice, video, data, and legacy applications. Figure 4 shows the dynamic bandwidth allocation achieved using ATM for the WAN.

Subject Categories:

  • Computer Systems
  • Computer Systems Management and Standards
  • Radiofrequency Wave Propagation
  • Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE