Abstract
A wireless body area network is a collection of Internet of Things–based wearable heterogeneous computing devices primarily used in healthcare monitoring applications. A lot of research is in process to reduce the cost and increase efficiency in medical industry. Low power sensor nodes are often attached to high-risk patients for real-time remote monitoring. These sensors have limited resources such as storage capacity, battery life, computational power, and channel bandwidth. The current work proposes a multi-hop Priority-based Congestion-avoidance Routing Protocol using IoT based heterogeneous sensors for energy efficiency in wireless body area networks. The objective is to devise a routing protocol among sensor nodes such that it has minimum delay and higher throughput for emergency packets using IoT based sensor nodes, optimal energy consumption for longer network lifetime, and efficient scarce resource utilization. In our proposed work, data traffic is categorized into normal and emergency or life-critical data. For normal data traffic, next-hop selection will be selected based upon three parameters; residual energy, congestion on forwarder node, and signal-to-noise ratio of the path between source and forwarder node. We use the data aggregation and filtration technique to reduce the network traffic load and energy consumption. A priority-based routing scheme is also proposed for life-critical data to have less delay and greater throughput in emergency situations. Performance of the proposed protocol is evaluated with two cutting-edge routing techniques iM-SIMPLE and Optimized Cost Effective and Energy Efficient Routing. The proposed model outperforms in terms of network throughput, traffic load, energy consumption, and lifespan.
Highlights
A wireless body area network (WBAN) is an example of communication between individual and machines
International Journal of Distributed Sensor Networks devices for their operation on, in or around the human body to serve a variety of applications including medical, consumer electronics or personal entertainment and other.’’ WBANs are capable of monitoring physiological vital signals through the use of IoT-based sensor nodes anytime, anywhere through Internet
A performance comparison is presented for three different routing techniques: iM-SIMPLE, Optimized Cost Effective and Energy Efficient Routing (OCER) and Priority-based Congestion-avoidance Routing Protocol (PCRP)
Summary
A wireless body area network (WBAN) is an example of communication between individual and machines. Finding a new route reduces throughput, introduces additional delays, and wastes limited energy supply It is not suitable for life-critical real-time monitoring applications. Higher transmission range requires high transmit power that will consume more energy.[10] the direct communication between sensor nodes and the sink is not a better choice for energy constrained WBANs. Multi-hop communication routes data through intermediate forwarder nodes used as relay nodes.[11] the existing routing protocol does not select next-hop that satisfies the energy consumption, data urgency, and QoS requirements efficiently. Our contribution includes the following: Our proposed protocol will choose congestionfree path and will ensure efficient resource utilization; Emergency data will get higher priority and less delay over normal data; Data aggregation will result in less energy consumption and longer network lifetime
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