Sneha K1
. and B G Prasad2
1Department of Computer Science & Engineering, BNM Institute of Technology,
Bengaluru, Karnataka, India
2Department of Computer Science & Engineering, BMS College of Engineering,
Bengaluru, Karnataka, India
ABSTRACT
The importance of IPv6 Routing Protocol for Low power and Lossy Networks (LLNs), also called RPL, has
motivated in the development of a robust and quality of service (QoS) oriented Multi-Constraints Adaptive
Link Quality Index (MALQI) based routing protocol. Unlike classical RPL protocols, MALQI enables
mobile-RPL while ensuring fault-resilient, reliable and QoS communication over LLNs. MALQI protocol
exploits key novelties such as signal strength based mobile node positioning, average received signal
strength indicator (ARSSI) and ETX based objective function for fault tolerant best forwarding path
selection. The functional architecture of MALQI enables it to be used as the parallel to the link layer RPL
that even in the case of link failure can assist efficient data delivery over LLNs. Once detecting link outage,
MALQI can execute node discover and best forwarding path selection to assist QoS delivery. Contiki-Cooja
based simulation reveals that MALQI based mobile-RPL outperforms other state-of-art routing protocols.
KEYWORDS
Mobile-RPL; Adaptive Link Quality; Low Power Lossy Network; Routing Protocol; MALQI.
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