12 September 2011

Call for Papers: Algorithms and Protocols for Opportunistic and Delay-Tolerant Networks

A special issue of International Journal of Ad Hoc and Ubiquitous Computing

The approaches of traditional stationary sensor networks lead to bottlenecks near the sink and non-uniform depletion of energy resources from the network. These approaches also decrease the probability of successful packet delivery with an increase in the number of hops from source to sink.

 However, wireless and mobile computing technologies have advanced significantly in the last decade, providing various communication possibilities for mobile elements of networks without a pre-existing infrastructure. Providing solutions to these challenges, networks with one or more mobile elements have architectural requirements different from those with static sinks, since the nodes in the network would sense data at varied sampling rates and store the packets locally, awaiting the arrival of a mobile element.

 One of the significant properties of a mobile element is that connectivity to the backbone network may not be available at all times. The mobile element would be able to receive data from a set of sensor nodes before returning to an access point to transfer all of the data and empty its buffers. The likelihood of a greater latency in packet delivery increases in such a situation, and it also results in intermittent connections among nodes. The nodes must benefit from contact opportunities whenever possible and the applications must better tolerate delays.

 Therefore techniques for making applications tolerant to disruptions and/or high delays are required. Opportunistic and delay-tolerant networks yield to more realistic scenarios than legacy mobile ad hoc networks.

 This special issue is dedicated to current state of the art in mobile sink applications and delay tolerant network protocols.

Suitable topics include but are not limited to:
  • Joint routing, scheduling and channel assignment protocols for mobile sinks
  • Routing and security trade-offs
  • Routing performance under various node deployment schemes
  • Moving strategies for mobile sinks
  • Power-aware and energy-efficient designs for mobile sinks
  • Distributed protocols supporting mobile sinks
  • Tools and techniques for designing, analysing and building delay-tolerant networks
  • Architectural principles of opportunistic and delay-tolerant networks
  • QoS in delay-tolerant networks
  • Network deployment, localisation and synchronization protocols
  • Test-bed, prototype and practical systems
  • Mathematical foundations of challenged networks
  • Physical characteristics of performance-challenged networks
Important Dates
Submission deadline: 30 November, 2011
Notification of acceptance: 29 February, 2012
Submission of final papers: 30 April, 2012

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