6533b7d1fe1ef96bd125d4c2

RESEARCH PRODUCT

An adaptive timer for RPL to handle mobility in wireless sensor networks

Leila Ben SaadFatma GaraElyes Ben HamidaRahma Ben AyedBernard Tourancheau

subject

Routing protocolbusiness.industryComputer scienceNode (networking)ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSReal-time computing020206 networking & telecommunications02 engineering and technologyNetwork topologyIPv6Key distribution in wireless sensor networks0202 electrical engineering electronic engineering information engineeringMobile wireless sensor network020201 artificial intelligence & image processingTimerbusinessWireless sensor networkComputer network

description

This paper focuses on the performance of wireless sensor networks characterized by a hybrid topology composed of mobile and static sensor nodes. The Routing Protocol for Low power and lossy networks (RPL), which is standardized as an IPv6 routing protocol for low power and lossy networks, uses the trickle timer algorithm to handle changes in the network topology. However, this algorithm is not well adapted to dynamic environments. This paper enhances the trickle timer in order to fit with mobility requirements. Most of previous works have improved this algorithm without considering the random movement of nodes. In this work, the proposed timer algorithm takes into consideration the random trajectory of mobile nodes, pause time and node's velocity. It is also dynamically adjusted to prevent from node disconnections. The performance of the modified protocol is evaluated and compared with native RPL, MERPL and RPL with reverse Trickle. The results show that our protocol optimization offers better performance.

yearjournalcountryeditionlanguage
2016-09-012016 International Wireless Communications and Mobile Computing Conference (IWCMC)
https://doi.org/10.1109/iwcmc.2016.7577138