Abstract
Objectives: In this study we developed a routing protocol named Fault-Tolerant QoS Centric Routing Protocol for WMSN (FTQ-RPM) where the classical RPL routing protocol was augmented with mobility features and multiple network condition parameters based parent node selection for forwarding path selection. Methods/Statistical Analysis: Fault-resilient routing protocol for Low power Lossy Networks (LLNs) which is applied in parallel to the link layer that once detecting any link outage initiates node discovery. The use of Received Signal Strength Indicator (RSSI) and Expected Number of Control Packets (ETX) based best parent node selection makes FTQ-RPM to achieve fault-resilient routing decision. In addition, RSSI based mobility management or mobile node positioning makes data communication more reliable than the random mobility. It assures reliable data communication over mobile-RPL based WMSNs. FTQ-RPM applies a global link repair model and supplementary forwarding path selection that works in parallel to the link layer of the native-RPL. It assures timely data delivery through supplementary path without imposing any additional computational overheads, delay and energy exhaustion during any link-outage condition. Findings: The overall developed routing protocols have been examined in terms of throughput, real-time data delivery, packet loss, delay, power consumption, resource utilization etc, where the proposed systems have been found superior than state-of-art existing protocols. Application/Improvements: It affirms the suitability of the proposed routing protocols for real-time WMSNs applications particularly for IoT. Keywords: Fault-Tolerant Routing, Low Power Lossy Networks, Mobility, Protocol, Quality of Service, WMSN
Highlights
In recent years, the exponential rise in the demand of wireless communication systems has been witnessed globally
To ensure reliable and timely multimedia data delivery, FTQ-RPM was applied in the parallel of RPL Link payer that once detecting link outage at first tries to use alternate parent node from the parent set, which were ordered in the decreasing order of Received Signal Strength Indicator (RSSI) value and ETX required
The proposed routing protocol was developed based on RPL concept which was applied over IEEE 802.15.4 standard
Summary
The exponential rise in the demand of wireless communication systems has been witnessed globally. To perform low cost and efficient multimedia data communication Wireless Multimedia Sensor Networks (WMSN) has emerged as a promising technique. WMSNs can have significant potential in real-time communication systems; the use of classical WSN routing approaches suffers adversely in Low power Lossy Networks (LLNs) that eventually affects QoS provision, energy consumption and delay. It affects QoS provision, which has become an inevitable need for major LLNs applications
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