Transcript IC Computing Seminar Oct 27, 2004

An Introduction to the Wireless Panel
at IEEE WCNC 2009
Professor Kin K. Leung
EEE and Computing Departments
Imperial College
April 7, 2009
Current and Future Wireless Networks
Corporate
Computers
Public
Internet
Gateway
Control
Server
Application
(Web) Servers
Sensors
Email
YouTube
Social networks
….
IP backhaul
Network
3G/4G
Access Point
IEEE
BS
WLAN
WiMax
Ad-Hoc
2
Big Question:
What Are Wireless Networks and Services
10 Years Down the Road??
Look Back 10 Years Ago…
•
•
•
GSM, GPRS and EDGE
– Mainly voice services
– Very limited data applications
– W-CDMA 3G had not deployed yet
IEEE 802.11(WiFi)
– 802.11a (up to 54 Mbps @ 5 GHz band) and 802.11b (up to 11 Mbps @
2.4 GHz band) specifications were approved
– 802.11g (54 Mbps @ 2.4 GHz, backward compatible with 802.11b)
specification was approved in 2003
– Not much use yet!
IEEE 802.16 (WiMax)
– The first 802.16 spec for wireless broadband access at fixed location and
line-of-sight links was approved in 2002!
Huge advances, development and
Deployment are possible in 10 Years!
Advances of Wireless Technologies in Last 10 Years
•
•
•
PHY Layer
– Multiple antenna techniques (e.g., MIMO, beamforming)
– Cooperative communications (e.g., relaying)
– Ultra wideband communications
– Cognitive Radio
– …
Networking
– Wireless scheduling (e.g., for diversity gain)
– Network protocols: MAC, routing, transport
– Energy efficient protocols (e.g., sensor networks)
– Auto/self-configuration and management
– Fundamental network performance limits (e.g., ad-hoc networks)
– …
Applications
– Continued expansion of email and web browsing
– Streaming video (e.g., YouTube)
– Social networks
– Peer-to-peer networks
– …
Big Question Again:
What Are Wireless Networks and Services
10 Years Down the Road??
• International panelists
– Yinggang Du (Huawei Technologies, China)
– Victor Leung (University of British Columbia, Canada)
– Ross Murch (Hong Kong University of Science and Technology)
– Sam Samuel (Alcatel-Lucent, UK)
– N.K. Shankaranarayanan (AT&T Labs – Research, USA)