E-MHMS: enhanced MAC-based secure delay-aware healthcare monitoring system in WBAN
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E-MHMS: enhanced MAC-based secure delay-aware healthcare monitoring system in WBAN A. Helen Sharmila1 • N. Jaisankar1 Received: 20 February 2020 / Revised: 25 April 2020 / Accepted: 5 May 2020 Ó Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Chronic patients are adapting to an emerging healthcare system assisted by the wireless body area network (WBAN). Medical data are not normal at all times; hence, the preference for critical data is expected to be high, and the requirement of security has become essential. This paper addresses a novel healthcare monitoring system (HMS) that adopts the IEEE 802.15.6 standard for WBAN. A modified IEEE 802.15.6 MAC is designed for predicting data types and residual energy on body sensors. An enhanced MAC-based HMS (E-MHMS) is developed for delay aware data transmission to perform data aggregation, key distribution, channel selection and data classification. A smartphone acts as a coordinator that aggregates data from the WBAN; upon receiving the data, it determines the best channel from the available multiple inputs for assured data transmission. E-MHMS uses the novel time-based elliptic curve algorithm and the ASCII RSA algorithm for key distribution and encryption. Finally, the data reaches the monitoring servers that classify the data using hybrid naı¨ve Bayesian neural network. The proposed E-MHMS setup in an OMNeT?? simulation environment and the improvements are demonstrated in terms of important network parameters such as delay, throughput, packet drop, security and accuracy. Keywords WBAN Healthcare monitoring system IEEE 802.15.6 MAC Security Best channel selection
1 Introduction Healthcare systems have the potentiality to assist patients in a comfortable infrastructure. Wireless body area network (WBAN) is widely applicable for both medical and nonmedical data transmission [1]. WBAN is supported by the specially designed IEEE 802.15.6 standard [2–5]. The three major processes that are addressed in WBAN are data aggregation, data transmission and data analysis. Delay and energy consumption are the two major issues that exist on WBAN. The standard IEEE 802.15.6 MAC is comprised of special functionalities for channel assessment and data transmission. This standard includes total 255 octets of elements in the frame body. & N. Jaisankar [email protected] A. Helen Sharmila [email protected] 1
School of Computer Science and Engineering, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu 632014, India
MAC is presented in WBAN to extend the network lifetime using carrier sense multiple access (CSMA) [6, 7]. A hyMAC that uses awaiting order states to minimize energy consumption is designed; therein, the data are aggregated with minimal interference. Data collection in WBAN has major issues related to delay and throughput, which are discussed in [8]. The sensed data are transmitted to a processing unit, and the link is selected based on the estimated communication cost. Optimiz
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