A control channel based MAC protocol for time critical and emergency communications in Industrial Wireless Sensor Networks

Raza, Mohsin; Minh, Hoa Le; Aslam, Nauman; Hussain, Sajjad; Ellahi, Waqas

doi:10.1109/c-code.2017.7918914

Cited by 11 publications

(6 citation statements)

References 13 publications

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“…The data processing is performed at the DS to evaluate the ADLs. To ensure real-time communications between the sensing devices and the DS, short super-frame of duration T is proposed [23,24]. A Time Division Multiple Access (TDMA) based transmission is established within the super-frame, where the maximum number of sensing devices affiliated to DS is n, and communication of each sensing device is completed in one timeslot of duration t [25].…”

Section: System Model Materials and Methodsmentioning

confidence: 99%

An Internet of Things Based Bed-Egress Alerting Paradigm Using Wearable Sensors in Elderly Care Environment

Awais

Raza

Ali

et al. 2019

Sensors

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The lack of healthcare staff and increasing proportions of elderly population is alarming. The traditional means to look after elderly has resulted in 255,000 reported falls (only within UK). This not only resulted in extensive aftercare needs and surgeries (summing up to £4.4 billion) but also in added suffering and increased mortality. In such circumstances, the technology can greatly assist by offering automated solutions for the problem at hand. The proposed work offers an Internet of things (IoT) based patient bed-exit monitoring system in clinical settings, capable of generating a timely response to alert the healthcare workers and elderly by analyzing the wireless data streams, acquired through wearable sensors. This work analyzes two different datasets obtained from divergent families of sensing technologies, i.e., smartphone-based accelerometer and radio frequency identification (RFID) based accelerometer. The findings of the proposed system show good efficacy in monitoring the bed-exit and discriminate other ambulating activities. Furthermore, the proposed work manages to keep the average end-to-end system delay (i.e., communications of sensed data to Data Sink (DS)/Control Center (CC) + machine-based feature extraction and class identification + feedback communications to a relevant healthcare worker/elderly) below 1 10 th of a second.

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Section: System Model Materials and Methodsmentioning

confidence: 99%

An Internet of Things Based Bed-Egress Alerting Paradigm Using Wearable Sensors in Elderly Care Environment

Awais

Raza

Ali

et al. 2019

Sensors

Self Cite

View full text Add to dashboard Cite

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“…Research done related to this project includes scheduling algorithms, time slot allocation algorithms, fast joining methods and, ranking schemes. Raza et al [23] purposed a MAC protocol for time-critical and emergency communication. The proposed protocol, EE-MAC, incorporates emergency communication and allows immediate channel access for such data.…”

Section: 42: Related Workmentioning

confidence: 99%

A MAC Layer Protocol For Smart Indoor Inventory Management System

Li¹

2021

Preprint

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The indoor inventory system is gaining more research attention and commercial value with the development of IoT. In this thesis, we presented the design of a MAC protocol that allows synchronized transmission of location and sensing data in a wireless positioning and sensor network for an indoor inventory system. The network supports real-life industrial applications and provides a highly specific positioning method.<div>In the network, mobile sensing tags are connected to smart readers that performs localization of tags and gathers sensing data from the tags. The readers are connected to the back-end cloud. The proposed MAC serves multiple classes of mobile tags with different priorities and latency requirements. These tags transmit critical, position and sensing data with different QoS requirements. The proposed MAC is a hybrid MAC that offers contention-based period for tag discovery and scheduled period for the transmission of sensing data with guaranteed latency. We conducted simulation to evaluate the performance of different methods of discovery process and their impact on latency assurance. We also developed a queuing model to analyze the relationship between parameters, acquiring parameters through experiment, and calculation of boundary values.<br></div><div>Simulation using MatLabTM software suggests that the joining period in design can increase the transmission success rate of high priority messages at the cost of a slight increment in the delay of low priority messages. Preliminary analysis suggests that by adaptively allocating the channel resources of the network to three types of tags, service efficiency can be improved. This result also guides the direction for further improvement.<br></div><div>We explored the performance of two options considered currently, which is selecting the discovery process according to modulo result of unique 16-bit tag ID and random select of an available discovery process. In the current environment where each tag does not have any information about other tags inside the network, the two methods have the same effect on avoiding collisions that could happen in a single discovery cycle.<br></div><div>The proposed MAC layer protocol can provide the best service when the available discovery process in the discovery cycle is for initialization and resetting. For an emergency, the joining period designs can still ensure a success rate for critical messages to be over 90%. Hence, the simulation results indicate the joining period method is able to improve MAC-layer performance.</div><div> <br></div>

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“…The mathematical representation of average access delay d [27], between channel requests to transmission for both Long-Term Evolution (LTE) and proposed scheme Priority MAC (P-MAC) is presented below…”

Section: B Mac Design: Prioritized Access and Control Channelmentioning

confidence: 99%

Deployment of Drone-Based Small Cells for Public Safety Communication System

Ali

Nguyen

Vien

et al. 2020

IEEE Systems Journal

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In the event of a natural disaster, communications infrastructure plays an important role in organizing effective rescue services. However, the infrastructure-based communications are often affected during severe disaster events such as earthquakes, landslides, floods, and storm surges. Addressing this issue, the paper proposes a novel drone based cellular infrastructure to revive necessary communications for out-of-coverage User Equipment (UE) who is in the disaster area. In particular, a matching game algorithm is proposed using one-to-many approach wherein several Drone Small Cells (DSCs) are deployed to match different UEs to reach a stable connection with optimal throughput. In addition, a Medium Access Control (MAC) framework is then developed to optimize emergency and high priority communications initiated from the rescue workers and vulnerable individuals. The simulation results show that the throughput for the outof-coverage UEs are significantly improved when the DSCs are deployed in public safety network while the channel access delay is also notably reduced for emergency communications within the affected areas.

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A control channel based MAC protocol for time critical and emergency communications in Industrial Wireless Sensor Networks

Cited by 11 publications

References 13 publications

An Internet of Things Based Bed-Egress Alerting Paradigm Using Wearable Sensors in Elderly Care Environment

An Internet of Things Based Bed-Egress Alerting Paradigm Using Wearable Sensors in Elderly Care Environment

A MAC Layer Protocol For Smart Indoor Inventory Management System

Deployment of Drone-Based Small Cells for Public Safety Communication System

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