Thursday, November 16, 2017

Principles of Communications -- Michaelmas Term 2017 - Nov 17, L19

This week, we shall finish with Scheduling() and Queue_Management().
Next week, on to switches, data centers (for real) and thence, to mesh...

Thursday, November 09, 2017

Principles of Communications -- Michaelmas Term 2017 - Nov 10, L16

This week sees us complete the control theory section of the course, and cover the optimisation model of end-to-end congestion control + traffic engineering/routing as a joint optimal solution...on friday 10th nov.

Will contrast the optimization model of TCP with a very large scale practical measurement based study of real world traces of TCP, on monday 13th....

Thursday, November 02, 2017

Principles of Communications -- Michaelmas Term 2017 - Nov 3, L13

This week, we looked at errors (coding for TCP)
flow control (open loop, token bucket etc, forward reference to schedulers)
closed loop (TCP equation, explicit v. implicit feedback), and will just start on
control theory....

if people want a lookaside at transforms, see
basis functions + also Markus Kuhn's excelent Digital Signal Processing course/notes.

Friday, October 27, 2017

Brexit & Principles of Communications

i'd just like to say that graph theory, compact routing, BGP, multicast, and the Erlang equation for call blocking probability have absolutely no bearing on whether brexit is a bad or good idea. The latter is entirely obvious, whereas the stuff I teach in this course is (hopefully) subtle, complex, and useful.

Wednesday, October 25, 2017

Principles of Communications -- Michaelmas Term 2017 - Oct 27, L10

By today, we've reached the outlimits of routing, having gone from compact, through centralized, via policy, multicast and mobile, to sticky random (DAR).

nb. material on information centric networking skipped/elided - not examinable:-)
plus didn't cover the tiny bit of mobile ip (but we do mesh networks later:)

Next week (from mon oct 30), we make a start on error, flow, and congestion control.

Thursday, October 19, 2017

Principles of Communications -- Michaelmas Term 2017 - Oct 20, L7

By friday, oct 20, should have covered most of the inter-domain routing material including key core attributes, decision process, what BGP really computes. Roughly on schedule. Have also put supervisor material up for people to start using...

Thursday, October 05, 2017

Principles of Communications -- Michaelmas Term 2017 - Oct 6, L1

Introduction&Outline of Course
  tangentially relevant cartoon of communication failure

Start on Graphs
  Next week (Oct 9&11) Graph Representations + Small Worlds, Clustering, Power Laws