Lecture 2

Lecture 2 - EE 555 Spring 2008 Broadband Network...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: EE 555 Spring 2008 Broadband Network Architecture Architectures 1.1 Network Resource Sharing Prof. John Silvester Obj. 1 Connectivity Obj. 1 Connectivity Need to communicate or transfer information from one location to another usc.den.ee555.200901.silvester.section.1 Solution 1 Direct Connection Solution 1 Direct Connection * Signal Design * Error Contro Error Control * Message Formats (framing call initiation and tear down) usc.den.ee555.200901.silvester.section.1 Multiplexing Multiplexing By grouping the channels together we can By grouping the channels together we can reduce costs due to economies of scale. It is (usually) cheaper to buy one 1 line (24 voice (usually) cheaper to buy one T 1 line (24 voice circuits) rather than 24 voice lines. Use one circuit dedicated to each connection Use one circuit dedicated to each connection (circuit switching) Consolidate traffic by the message (packet) on a shared connection (packet switching) usc.den.ee555.200901.silvester.section.1 Shared Link (Trunk) Shared Link (Trunk) Shared channel Economy of Scale Also allows for a node to connect to different destinations at different times * Addressing * Switching usc.den.ee555.200901.silvester.section.1 Statistical Multiplexing Statistical Multiplexing Reduce number of channels * Performance (Blocking, Queueing) * Design optimization how many channels?...
View Full Document

Page1 / 9

Lecture 2 - EE 555 Spring 2008 Broadband Network...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online