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Fast mobility support in low-power wireless networks: smart-HOP over RPL/6LoWPAN

dc.contributor.advisorAlves, Mário Jorge de Andrade Ferreira
dc.contributor.advisorFotouhi, Hossein
dc.contributor.authorMoreira, Daniel Augusto da Rocha
dc.date.accessioned2014-09-19T13:42:31Z
dc.date.available2014-09-19T13:42:31Z
dc.date.issued2013
dc.description.abstractWith the emergence of low-power wireless hardware new ways of communication were needed. In order to standardize the communication between these low powered devices the Internet Engineering Task Force (IETF) released the 6LoWPAN stand- ard that acts as an additional layer for making the IPv6 link layer suitable for the lower-power and lossy networks. In the same way, IPv6 Routing Protocol for Low- Power and Lossy Networks (RPL) has been proposed by the IETF Routing Over Low power and Lossy networks (ROLL) Working Group as a standard routing protocol for IPv6 routing in low-power wireless sensor networks. The research performed in this thesis uses these technologies to implement a mobility process. Mobility management is a fundamental yet challenging area in low-power wireless networks. There are applications that require mobile nodes to exchange data with a xed infrastructure with quality-of-service guarantees. A prime example of these applications is the monitoring of patients in real-time. In these scenarios, broadcast- ing data to all access points (APs) within range may not be a valid option due to the energy consumption, data storage and complexity requirements. An alternative and e cient option is to allow mobile nodes to perform hand-o s. Hand-o mechanisms have been well studied in cellular and ad-hoc networks. However, low-power wireless networks pose a new set of challenges. On one hand, simpler radios and constrained resources ask for simpler hand-o schemes. On the other hand, the shorter coverage and higher variability of low-power links require a careful tuning of the hand-o parameters. In this work, we tackle the problem of integrating smart-HOP within a standard protocol, speci cally RPL. The simulation results in Cooja indicate that the pro- posed scheme minimizes the hand-o delay and the total network overhead. The standard RPL protocol is simply unable to provide a reliable mobility support sim- ilar to other COTS technologies. Instead, they support joining and leaving of nodes, with very low responsiveness in the existence of physical mobility.por
dc.identifier.tid201813408
dc.identifier.urihttp://hdl.handle.net/10400.22/4967
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherInstituto Politécnico do Porto. Instituto Superior de Engenharia do Portopor
dc.titleFast mobility support in low-power wireless networks: smart-HOP over RPL/6LoWPANpor
dc.typemaster thesis
dspace.entity.typePublication
rcaap.rightsopenAccesspor
rcaap.typemasterThesispor

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