Abstract
Software-Defined Wireless Body Area Network (WBAN)s have gained significance in emergency healthcare applications for remote patients. Prioritization of healthcare data traffic has a high influence on the congestion and delay in the WBAN routing process. Currently, the energy constraints, packet loss, retransmission delay and increased sensor heat are pivotal research challenges in WBAN. These challenges also degrade the network lifetime and create serious issues for critical health data transmission. In this context, a Priority-based Energy-efficient, Delay and Temperature Aware Routing Algorithm (PEDTARA) is presented in this paper using a hybrid optimization algorithm of Multi-objective Genetic Chaotic Spider Monkey Optimization (MGCSMO). This proposed optimized routing algorithm is designed by incorporating the benefits of chaotic and genetic operators to the position updating function of enhanced Spider Monkey Optimization. For the prioritized routing process, initially, the patient data transmission in the WBAN is categorized into normal, on-demand and emergency data transmissions. Each category is ensured with efficient routing using the three different strategies of the suggested PEDTARA. PEDTARA performs optimal shortest path routing for normal data, energy-efficient emergency routing for high priority critical data and faster but priority verified routing for on-demand data. Thus, the proposed PEDTARA ensures energy-efficient, congestion-controlled and delay and temperature aware routing at any given period of health monitoring. Experiments were performed over a high-performance simulation scenario and the evaluation results showed that the proposed PEDTARA performs efficient routing better than the traditional approaches in terms of energy, temperature, delay, congestion and network lifetime.
Highlights
In recent times, the human health monitoring applications for remote patients using Wireless Body Area Network (WBAN) have gained immense interest with the development of high-performance integrated circuits, wireless communication systems and sensor networks
The Software-Defined Network (SDN) approach is another efficient paradigm that is being used with WBANs to tackle the installation problems of heterogeneity and scalability
An efficient routing model named the Priority-based Energy Efficient, Delay and Temperature Aware Routing Algorithm has been developed in this paper for SDN-based WBAN
Summary
The human health monitoring applications for remote patients using WBANs have gained immense interest with the development of high-performance integrated circuits, wireless communication systems and sensor networks. The Software-Defined Network (SDN) approach is another efficient paradigm that is being used with WBANs to tackle the installation problems of heterogeneity and scalability This hybrid architecture is often the futuristic solution for healthcare applications such as remote patient monitoring and telemedicine [3]. The WBAN healthcare sensing consists of medical sensors implanted onto the patient’s body for extracting vital signs such as pulse, heart rate, temperature, blood pressure, etc. These sensors are connected in a network model for monitoring and collecting the medical data which are transmitted to a coordinator. This type of communication is efficient in power conservation in the nodes using tiny batteries with limited energy, which significantly prolongs the network lifetime
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