Wireless Networks and Services 10 Years Down the Road Ross Murch
18
1 Wireless Networks and Services 10 Years Down the Road Ross Murch Ross Murch Professor, Electronic and Computer Professor, Electronic and Computer Engineering Engineering Director, Centre for Wireless Information Director, Centre for Wireless Information Technology Technology The Hong Kong The Hong Kong University of University of Science and Science and Technology Technology
description
Wireless Networks and Services 10 Years Down the Road Ross Murch Professor, Electronic and Computer Engineering Director, Centre for Wireless Information Technology. Internet. Voice. Video. WiFi. Email. SMS. Mobile TV. Today- 2009. Yesterday- 1999. Billions of wireless devices. - PowerPoint PPT Presentation
Transcript of Wireless Networks and Services 10 Years Down the Road Ross Murch
1
Wireless Networks and Services 10 Years Down the
Road
Ross MurchRoss MurchProfessor, Electronic and Computer Professor, Electronic and Computer
EngineeringEngineeringDirector, Centre for Wireless Information Director, Centre for Wireless Information
TechnologyTechnologyThe Hong Kong University The Hong Kong University of Science and Technologyof Science and Technology
2
Wireless RevolutionWireless Revolution
VoiceVoice
Yesterday- 1999Yesterday- 1999Millions ofMillions of wireless devices
SMSSMS
Today- 2009Today- 2009Billions ofBillions of wireless devices
EmailEmail
Mobile TVMobile TV
VideoVideo
InternetInternet
WiFiWiFi
3
Wireless EverywhereWireless Everywhere
Tomorrow- 2019Tomorrow- 2019TrillionsTrillions of Wireless devices of Wireless devices
VariousVariousInfo/MediaInfo/Media
New MobileNew MobileDevicesDevices
Distributed Distributed EnvironmentalEnvironmental& Bio Sensing& Bio Sensing
Smart RFIDSmart RFID
People to People People to machines Machines to Machines
Next Next generation generation phonesphones
Medical Medical applicationsapplications
SecuritySecurity
4
ChallengesChallenges
5
What is Next for Wireless What is Next for Wireless Communications?Communications?
In broadband access WiMAX and LTE promise extremely high peak rates
However this is just for one user in one cell
What happens when we have Trillions of users
Wireless aggregated capacity will need to increase enormously
How can this challenge be met?
6
• What can we do?
Increasing CapacityIncreasing Capacity
)/1(log 2 NPBC iiChannels
Increase BandwidthCognitive RadioMore Channels
MIMO
Increase PowerCooperative systems
7
MIMO- Large MMIMO- Large M• Capacity linear in the number of antennas• Makes sense to make N as large as possible • Instead of 2 antennas lets use many- 36 or even 100
• Chi Yuk Chiu and , RD. Murch, 24-Port and 36-Port Antenna Cubes suitable for MIMO Wireless Communications, IEEE Transactions Antennas and Propagation, Vol 56, No 4, pp1170-1176, April 2008
8
Cognitive Radio- IEEE 802.22 (WRAN)Cognitive Radio- IEEE 802.22 (WRAN)
집
집
집
집집
집
집
집
집
집 집
집
집
WRANRepeater
TV TransmitterWRAN
Base Station
WirelessMIC
집
WirelessMIC
집
WRANBase Station
집
집
: CPE집
집
집
집
집
집
: WRAN Base Station
집
집
집
집
집
집
집
집
집
집
집
집
집
Typical ~33kmMax. 100km
집 집
집집 집
집
집
집
Deployment Deployment ScenarioScenario
9
Cooperative NetworksCooperative Networks
[GastparVetterli02]
• Cooperation between nodes multi-user encoding and decoding relays may exchange information with
each other in order to coordinate transmission and reduce interference
nOnRn
log~)(
R(n)
tends infinity
n
Cooperation
10
What is Next for Wireless What is Next for Wireless Communications?Communications?
Mobile Computing
Embedded Wireless Devices
Ubiquitous Computing and Access
Multifunction devices and services
Agents and Assistants
Pervasive Communications
11
Not like this!Not like this!
Source: L Kleinrock, Realizing the Wireless Internet, Keynote, Lecture, IEEE WCNC, Hong Kong
12
Pervasive Pervasive CommunicationsCommunications
• Trillions of mobile wireless devices• Devices ubiquitously embedded in the world
actuators, sensors, memory, processing, speakers, microphones, cameras, displays
• Intelligent software agents deployed To mine data, act on that data, observe trends, and adapt
to their environment• Easy configuration and maintenance• The Internet will become essentially a pervasive
global system What the internet has done for computers, pervasive
communications will do for wireless
13
Easy Configuration and MaintenanceEasy Configuration and Maintenance
• Intelligent software agents could be deployed across the network whose function it will be toMine dataAct on that dataObserve trendsCarry out tasks dynamicallyAdapt to their environment
14
Pushing the Wireless RevolutionPushing the Wireless Revolution • Revolution in short range wireless communications
WLAN, WiFi, IEEE 802.11a/b/g/n Rates up to 54Mbps IEEE 802.11n using MIMO Approx 250Mbps
Zigbee Bluetooth UltraWideBand
3.1-10.6GHz band IEEE 802.15.3a 480Mbps within 1-10m
RFID Passive UHF- 900MHz
15
Convergence Convergence
• Divergence of Physical layers and Applications
Application
Presentation
Session
Transport
Network
Data Link
Physical
Application
Presentation
Session
Transport
Network
Data Link
Physical
16
More Breakthroughs Needed…More Breakthroughs Needed…• Aggregate Wireless Capacity Evolution
Fundamentally limited using conventional techniques Cost and Energy Cognitive Radio Cooperative Systems MIMO Efficient protocols Adaptation
• Pervasive Communications Revolution Automatic configuration- self configuring Dynamic processing, prediction and actions- agents Energy conservation Miniaturization
17
Wireless EverywhereWireless Everywhere
TomorrowTomorrowTrillionsTrillions of Wireless devices of Wireless devices
VariousVariousInfo/MediaInfo/Media
New MobileNew MobileDevicesDevices
Distributed Distributed EnvironmentalEnvironmental& Bio Sensing& Bio Sensing
Smart RFIDSmart RFID
People to People People to machines Machines to Machines
Next Next generation generation phonesphones
Medical Medical applicationsapplications
SecuritySecurity
18
Thank You!Thank You!
