Transcript Personal Networks Introduction

Personal Networks
Introduction
Delft University of Technology
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Mobile and IT Convergence
• Wireless Communication
– Radio
– Mobile Telephony
• Computing
– Internet
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Wireless Communication
Far
Range
GPRS
UMTS
WLAN
Bluetooth
UWB
Short
Slow
Data Rate
Fast
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Personal Wireless Communication
• Short-range wireless technology examples:
Bluetooth and Wireless LAN (802.11)
• Worldwide
– 1.5 billion Bluetooth units
– >350 million WLAN units
• have been sold!
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Infrastructure Networks
• GSM users:
• UMTS users:
• Broadband users:
3 billion
2 billion
500 million
• On the rise:
– Long-Term Evolution (LTE)
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Devices, Devices, Devices
• Appliances (TVs, PVRs, fridges, etc …)
– 5.5 million replaced in 2008 in the Netherlands only
• Smart phones
– 65 millions sold in US alone in 2010
• IMS Research (August 2010):
– 5 billion Internet-connected devices today
• Cisco (June 2011):
– 15 billion devices on the Internet by 2015.
• WWRF Book of Visions
– 1000 wireless devices per person on earth by 2017
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Technology Drivers
• More personal devices per person
– Also more diverse devices
– Vision of pervasive computing, driven by Moore’s
law
• More low cost air-interfaces
• Infrastructure (Internet) access is becoming
ubiquitous to fixed and mobile users
• Growth of IP capable devices
– Sensors and simple actuators
– (e.g., ZigBee, 6LoWPAN)
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The Future of Wireless:
Explosion at the Edges
emergency
network
Access Networks
Global core
home
network
BAN
sensor
network
VAN
PAN
mesh
network
ad hoc
network
Sensor
network
corporate
network
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Characteristics of Future Networks
• Internet of Things
– Orders of magnitude more communicating devices
• Huge number of “owners” involved (not operators)
• Partly unplanned and ad-hoc connected
• Heterogeneity:
– Capabilities and characteristics of devices
– Access technologies
– Applications/services, including surge in embedded
applications
• Dynamics
• Bound for future network chaos:
– Scale, competing entities, spectrum, etc.
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New and Some Old Concerns
• Manageability
• Trustworthiness
– Security,
– Dependability,
– Robustness
•
•
•
•
•
Ease of use
Ease of developing applications/services
Spectrum usage
Energy concerns
Health (Radiation)
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Problems we are Facing Now
• An increasing variety of
– Communication and security protocols,
– Complex configuration, and a
– Lack of integration between heterogeneous
technologies
• …is hampering ubiquitous communication
using different devices
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User-Centric Networking
From Wireless Strategic Initiative – 2000
(WWRF Book of Visions 2004)
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Personal Network
A platform that makes ubiquitous
communication between personal devices
over any network technology and any
operating system a reality
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What are Personal Networks?
• Secure personal communication
• Automatic addressing and network
configuration
• Routing, broadcasting and mobility
• Discovery, use, and access control of
services
• Personal content management
• Federations with other PNs
• Wireless technology and operating system
independent
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What do PNs offer?
• Devices belonging to a user self-organize to
form a geographically distributed secure
overlay network of personal devices
• A platform for a multitude of personal
applications and services to support private
and professional activities in a person-centric,
unobtrusive, dependable and trustworthy way
• A tool to cooperate with others through
federation and interact with non-PN systems
(Federations of PNs)
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What do PNs do?
• Connect personal devices near and far
automatically and securely using any network
infrastructure (3G, LTE, WiFi, Bluetooth, ADSL,
etc…)
Network
Infrastructure
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PN Target Characteristics
• Ease of use
• No/minimal user training required
• No system administrators
• Trustworthiness
• Security, privacy and dependability
• Ubiquitous
• Should work everywhere a person and her/his
devices are
• Low cost
• Consumer technology
• No installation costs
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What are PN Federations?
Personal Networks
PN3
PN Federation
Home network
Home network
Interconnecting structure
Corporate
network
Vehicular area
network
PN2
PN1
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Key Ideas of PN Federations
• Cooperation
– Of multiple PNs
– For achieving a specific goal
– Using selected resources and services of each other
• Driven by purpose or opportunity
• Temporary or long term
• Ad hoc (neighboring users and their devices) or
mediated by a PN directory service
• Initiated via invitation or announcements (push)
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