TLMN 625 SPRING 2003 Class 13

1
TLMN 625 SPRING 2003Class 13

• Future Trends
• Exam Prep

2
PREFACERecession of 2001

• Overabundance of telecom resources especially
  long haul fiber
• Telecommunication stocks down in all areas
  Fiber, Wireless
• The current circuit switched PSTN is not going
  away that fast

3
The Future Evolution of Services
2005

• Carrier-class Packet Networks
• Multi-Media Services

2001

• Public Network
• Full Telephony
• Enhanced Services
• Packet Dominated Network

1998

• Special Purpose Networks
• Voice
• Fax
• Rate Arbitrage

4
New View of Telecom
5
Data vs. Voice TransmissionSourceRHK, Jan. 2000

• Data Traffic over the Internet 350,000 Terabits/
  month (How much is a Terabit?)
• Data traffic has surpassed the amount of voice
  traffic on the incumbent voice network
  infrastructure
• Streaming media now accounts for 10 of all
  Internet traffic
• Fax 2-3 of Internet traffic

6
DSL TRAFFICSource RHK http//www.rhk. com

• Jan. 2000 served 1.5 million homes in North
  America (US, Canada)
• This number however is only 1 of homes
• Wireless Internet access also expected to
  increase

7
Fiber in the Loop

• Fiber to the Neighborhood-then existing copper
  infrastructure
• Fiber to the curb-then existing copper
  infrastructure
• Fiber to the building- offices,
  apartments,condominiums
• Fiber to the home- future (expensive)

8
New Technologiesfor Improved Capacity/Performance

• High Capacity (Terabit) Routers
• Quality of Service for IP Services
• Transmission Methods Dense Wave Division
  Multiplexing (DWDM)
• Wireless Multiple Access Orthogonal Frequency
  Division Multiple Access (OFDMA)
• Satellite Systems (MEO?)

9
IP as a Carrier Network

• Assessment of importance of individual packets
  and the ability to mark them
• Voice Data Integration
• Virtual Private Network capabilities
• Carrier system reliability
• Ability to convert phone numbers to IP addresses

10
Future of ATM

• Installation of ATM occurring at a rapid rate
• role of ATM as the dominant switching technology
  in public networks over the next decade is not
  assured Dittberner Associates
• POS (Packet over Sonet), a technology possibly
  in time that will replace
  ATM on Net backbones.

11
Outstanding Major Issues in Implementing
Broadband Technology

• Is a single network (ATM, IP) the only long term
  answer or is a combination of networks (IP, Frame
  Relay, ATM, Gigabit Ethernet) the optimum design?
• Data Voice, Video Integration How can voice be
  supported over IP, Frame Relay, and ATM?

12
(No Transcript)
13
Network Evolution

• I could draw a map of different product segments
  that are supported today, but I think all of this
  is going to get thrown up in the air. What
  protocols are going to be riding over the network
  of the future and the services that are delivered
  will see an awful lot of evolution. Oye of
  Lucent in Telecommunications Magazine April 1999

14
Areas for Final Exam

• 5 questions with related subparts
• Topics
• 1.
• 2.
• 3.
• 4.
• 5.