Adaptive Mobility-Assisted Data Dissemination in Mobile Disaster/Recovery Environments

Vu, Long; Nahrstedt, Klara

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https://hdl.handle.net/2142/11341 Copy

Description

Title

Adaptive Mobility-Assisted Data Dissemination in Mobile Disaster/Recovery Environments

Author(s)

• Vu, Long
• Nahrstedt, Klara

Issue Date

2007-06

Keyword(s)

• mobile ad hoc networks
• ad hoc networks
• wireless networks

Abstract

Efficient information dissemination over Mobile Ad hoc Networks (MANET) for urban Disaster/Recovery (D/R) missions is emerging as a very challenging and important research problem. In this paper, we present an adaptive mobility-assisted data dissemination framework as a solution for Disaster/Recovery mission. Our novel framework is based on .Importance Score. of D/R messages to: (1) optimize the number of disseminations due to the bandwidth limitation in MANET, and (2) discard invalid D/R messages due to memory space limitation on mobile devices. The corresponding .Importance Score. function ranks D/R messages according to metrics that obtain maximal area coverage and minimal delay in D/R dissemination. Once the D/R messages are ranked, our adaptive mobility-assisted data dissemination protocol broadcasts top k, tuning broadcast period according to network condition. To ensure performance efficiency, we estimate times-to-send (TTS) to limit unnecessary transmissions. Our experimental results show that the presented framework with corresponding algorithms and protocols efficiently utilize network bandwidth and node memory space, while achieving information coverage and delay objectives.

Type of Resource

text

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http://hdl.handle.net/2142/11341

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