scholarly journals Towards Power Efficient MAC Protocol for In-Body and On-Body Sensor Networks

2009 ◽  
pp. 335-345 ◽  
Author(s):  
Sana Ullah ◽  
Xizhi An ◽  
Kyung Sup Kwak
Keyword(s):  
Sensor Networks ◽  
Mac Protocol ◽  
Body Sensor Networks ◽  
Power Efficient

scholarly journals Efficient Hybrid Emergency Aware MAC Protocol for Wireless Body Sensor Networks

Sensors ◽  
2018 ◽  
Vol 18 (10) ◽  
pp. 3572 ◽  
Author(s):  
Nadine Bou Dargham ◽  
Abdallah Makhoul ◽  
Jacques Bou Abdo ◽  
Jacques Demerjian ◽  
Christophe Guyeux
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Sensor Networks ◽  
Mac Protocol ◽  
High Energy ◽  
Body Sensor Networks ◽  
Emergency Situations ◽  
High Energy Efficiency ◽  
Periodic Traffic ◽  
Packet Drop

In Body Sensor Networks (BSNs), two types of events should be addressed: periodic and emergency events. Traffic rate is usually low during periodic observation, and becomes very high upon emergency. One of the main and challenging requirements of BSNs is to design Medium Access Control (MAC) protocols that guarantee immediate and reliable transmission of data in emergency situations, while maintaining high energy efficiency in non-emergency conditions. In this paper, we propose a new emergency aware hybrid DTDMA/DS-CDMA protocol that can accommodate BSN traffic variations by addressing emergency and periodic traffic requirements. It takes advantage of the high delay efficiency of DS-CDMA in traffic burst, and the high energy efficiency of DTDMA in periodic traffic. The proposed scheme is evaluated in terms of delay, packet drop percentage, and energy consumption. Different OPNET simulations are performed for various number of nodes carrying emergency data, and for various payload sizes. The protocol performance is compared to other existing hybrid protocols. Results show that the proposed scheme outperforms the others in terms of delay and packet drop percentage for different number of nodes carrying emergency data, as well as for different payload sizes. It also offers the highest energy efficiency during periodic observation, while adjusting the energy consumption during emergency by assigning spreading codes only to nodes holding emergency data.

scholarly journals A MAC PROTOCOL FOR ENERGY EFFICIENCY AND FAST EMERGENCY MEDICAL JUDGMENT IN WIRELESS BODY SENSOR NETWORKS

2021 ◽  
Vol 56 (5) ◽  
pp. 107-113
Author(s):  
Hye Yun Kim ◽  
Seong Cheol Kim
Keyword(s):  
Sensor Networks ◽  
Medical Staff ◽  
Mac Protocol ◽  
Sensor Nodes ◽  
Body Sensor Networks ◽  
Medical Systems ◽  
Related Data ◽  
Emergency Events ◽  
Wireless Body Sensor Networks ◽  
Fast Transmission

Emergency data collected from sensor nodes widely distributed in wireless body sensor networks (WBSNs) are delivered to medical staff as quickly as possible, so patients’ lives can be saved through appropriate actions and treatments. However, relevant data and vital data may be required for appropriate actions by the medical staff. Therefore, all these data must be properly delivered to the medical staff within the set time. In this paper, we propose a MAC protocol with a reservation function and an operation frame extension function to extend the overall network lifetime by reducing the energy consumption of given sensor nodes and quickly deliver information to medical systems in case of emergency. This MAC protocol makes it possible to achieve fast transmission of related data by utilizing the related-priority slots. As a result of the experiment, the transmission delay was reduced by about 12.5%, and the lifetime was increased by approximately 19% over the existing MAC protocol. It also can be seen that the proposed MAC protocol works well in an environment where emergency events often occur.

scholarly journals Mobility aware and traffic adaptive hybrid MAC protocol for collaborative body sensor networks

2020 ◽  
Vol 32 (3) ◽  
pp. 182
Author(s):  
Jacques Demerjian ◽  
Abdallah Makhoul ◽  
Christophe Guyeux ◽  
Nadine Boudargham ◽  
Jacques Bou Abdo
Keyword(s):  
Sensor Networks ◽  
Mac Protocol ◽  
Body Sensor Networks

scholarly journals Mobility aware and traffic adaptive hybrid MAC protocol for collaborative body sensor networks

2020 ◽  
Vol 32 (3) ◽  
pp. 182
Author(s):  
Nadine Boudargham ◽  
Jacques Bou Abdo ◽  
Jacques Demerjian ◽  
Abdallah Makhoul ◽  
Christophe Guyeux
Keyword(s):  
Sensor Networks ◽  
Mac Protocol ◽  
Body Sensor Networks

RTS-MAC: A Relative Time Synchronization MAC Protocol for Low Duty Cycle Body Sensor Networks

2012 ◽  
Vol 19 (3) ◽  
pp. 163-172 ◽  
Author(s):  
Christoph Beck ◽  
Jörg Nagel ◽  
Peter Hevesi ◽  
Georg Bretthauer
Keyword(s):  
Sensor Networks ◽  
Duty Cycle ◽  
Time Synchronization ◽  
Mac Protocol ◽  
Body Sensor Networks ◽  
Relative Time ◽  
Low Duty Cycle
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