Publication
Fast mobility support in low-power wireless networks: smart-HOP over RPL/6LoWPAN
dc.contributor.advisor | Alves, Mário Jorge de Andrade Ferreira | |
dc.contributor.advisor | Fotouhi, Hossein | |
dc.contributor.author | Moreira, Daniel Augusto da Rocha | |
dc.date.accessioned | 2014-09-19T13:42:31Z | |
dc.date.available | 2014-09-19T13:42:31Z | |
dc.date.issued | 2013 | |
dc.description.abstract | With 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.tid | 201813408 | |
dc.identifier.uri | http://hdl.handle.net/10400.22/4967 | |
dc.language.iso | eng | por |
dc.peerreviewed | yes | por |
dc.publisher | Instituto Politécnico do Porto. Instituto Superior de Engenharia do Porto | por |
dc.title | Fast mobility support in low-power wireless networks: smart-HOP over RPL/6LoWPAN | por |
dc.type | master thesis | |
dspace.entity.type | Publication | |
rcaap.rights | openAccess | por |
rcaap.type | masterThesis | por |