3511 - Class #3 - Jan 20, 2016

Today’s agenda

• York’s VPN goof

• Admin: buddies, pix• CRTC broadband survey• Report #1 + hand-in

• Spectrum

• TCP/IP?• Next: the pCell breakthrough

Email etiquette

1 - On you to keep working email and check often

2 - Use jdae@yorku.ca

3 - Send during business hrs only: M-F/ 9-6

4 - Do not hit “reply” unless it’s a reply

5 - Subj field = 3511 + your name + the actual subj

6 - Attachments in PDF only, with filename as in #5

“York Security…

“Click on System Preferences > Security and

Privacy. Click on the lock to make changes if necessary. Make sure that under “Allow apps downloaded from…” - Anywhere is selected.”

Babam!!

So much for your code-signing and sandboxing security features

CRTC Broadband Survey

Part of BSO proceedingphase 2

https://97.ca/ekos/cwx.cgi?EN:01616R

Directed links - “popularity”

XNew York Times

website

D.E.blog

link

no link

Direction on your Internet access line

Downlink Uplink

wide - “faster”

narrow -“slower”

“Bandwidth…”

Spectrum properties

Detail - spectrum allocations

Mobile wireless…

macrocell (35km)

microcell (2km)

picocell (200m)

femtocell (10m)

Cell tower - macro

Macrocell + picocell > signal strength

Artemis pCell

DIDO pCell radio re-invents wireless — brings 'mobile fiber' to users

http://bit.ly/1JgzjRN

• Report #1 - 10% of final grade (10/20)• Due in 2 weeks (Jan 20)• Answer: What is a network?• Write 5-7 paragraphs - your themes• Use 5 online sources besides Wikipedia• In your words: no verbatim quotes• Must follow our course stylesheet• Length 750 words +/-10%

Written report #1

Homework for Jan 27

1. Reading #3 - Artemis pCell with hand-in…i) reading notesii) 5 vocab items, definediii) 3 non-obvious content questions

2. CRTC BB survey

Coming up Feb.3 - Quiz #1… and TCP/IP