Wireless Grids Distributed Resource Sharing by Mobile, Nomadic, and Fixed Devices

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Wireless GridsDistributed Resource Sharing by
Mobile, Nomadic, and Fixed Devices

• Presented by Hyunju Seo
• Sep. 16, 2004

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Agenda

• Wireless Grids
• Characteristics of Wireless Grids
• Whats New About Wireless Grids
• Wireless Grids in Context
• Wireless Grid Infrastructure
• Applications
• Next Stages
• Articles in This Issue
• Discussion

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Wireless Grids

• A new type of resource-sharing network
• Connect sensors, mobile phones, other edge
  devices with each other and with wired grids
• Make it easier to extend grid computing to large
  numbers of devices

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Dynamic and Fixed Wireless Grids
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Characteristics of Wireless Grids

• Small, low powered devices
• - Power efficiency major concern
• Mobile nomadic devices
• - Phones, PDAs, and laptops
• - Telematics eg Onstar, Car.net
• Mesh capabilities of groups of devices
• - Resource pooling may enable new applications
• Networks of wireless Sensors
• - such as smartdust, or a phone
• - Environmental, health, security monitoring

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Wireless Grid Applications Classes

• Class 1 Applications aggregating information
  from the range of input/output interfaces found
  in nomadic devices
• Class 2 Applications leveraging the locations
  and contexts in which the devices exist
• Class 3 Applications leveraging the mesh network
  capabilities of groups of nomadic devices
• gt Not mutually exclusive!

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Whats New About Wireless Grids

• Wireless grids present three novel elements
• - new resources
• eg) cameras, microphones, GPS receivers,
  accelerometers,
• - new places of use
• eg) shopping malls, medical disaster areas,
  sporting events,
• - new institutional ownership and control
  patterns
• eg) consumers, individual owners,

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Wireless Grids in Context(Three related
computing paradigms)

• Grid Computing
• - flexible, secure, and coordinated resource
  sharing among dynamic collections of individuals,
  institutions, and resources
• P2P Computing
• - must arrange coordinated sharing among
  heterogeneous devices, across unreliable network
  connections, with little or no prearrangement and
  little or no warning of site failure
• Web Services
• - must address resource-sharing in the face of
  unreliable networks and end devices

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A wireless grid issues and standards map
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Wireless Grid Infrastructure(Abstract
requirements for ad hoc resource sharing)

• Resource Description
• Resource Discovery
• Coordination Systems
• Trust Establishment
• Clearing Mechanisms

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Applications

• DARC (Distributed Ad Hoc Resource Coordination)
• - The system lets devices with no prior knowledge
  of each other collectively record and mix an
  audio signal such as a concert, speech, lecture,
  or emergency event.
• - The project demonstrates the potential of
  wireless grids and distributed ad hoc resource
  sharing to harness the combined ability of mobile
  devices in social contexts outside the expected
  environments for computing

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Next Stages

• An abundance of research challenges remain in
  crafting engineering applications and appropriate
  radio technologies, as well as developing
  reliable clearing mechanisms and spectrum policy.

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Articles in This Issue

• Junseok Hwang, Praveen Aravamudham, Middleware
  Services for P2P Computing in Wireless Grid
  Networks, IEEE Internet Computing, vol.8, no.4,
  2004
• Mark Gaynor, Steven L. Moulton, Matt Welsh, Ed
  LaCombe, Austin Rowan, John Wynne, Integrating
  Wireless Sensor Networks with the Grid, IEEE
  Internet Computing, vol.8, no.4, 2004

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Discussion

• Strengths of the approach
• Weaknesses of the approach
• Relevance to the Embedded system

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Question or Comment?