Energy-Efficient and Fast MAC Protocol in UAV-Aided Wireless Sensor Networks for Time-Critical Applications

Unmanned aerial vehicle (UAV)-aided wireless sensor networks (UWSNs) can be effectively used for time-critical sensing applications. UAVs can be used to collect the sensed data from sensors and transfer them to a base station. The real-time transfer of data is highly desired in the time-critical applications. However, the medium access control (MAC) protocols designed for UWSNs so far are primarily focused on the efficient use of UAVs to collect data in the sensing areas. In this paper, we propose an energy-efficient and fast MAC (EF-MAC) protocol in UWSNs for time-critical sensing applications. EF-MAC adopts carrier sense multiple access (CSMA) for the registration of sensor nodes with a UAV and time division multiple access (TDMA) with variable slot time for the transmission of collected data. The UAV is equipped with two transceivers to minimize both energy consumption and delay in air-to-ground communication. The energy consumption and delay are formally analyzed and the performance of EF-MAC is evaluated via extensive simulation. The simulation results show that the proposed EF-MAC outperforms the conventional MAC protocols in terms of energy efficiency and communication delay.

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EE-Hybrid MAC Protocol for Wireless Sensor Networks

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.573.407 ◽

2014 ◽

Vol 573 ◽

pp. 407-411

Author(s):

Chelliah Pandeeswaran ◽

Natrajan Papa ◽

Sundar G. Jayesh

Keyword(s):

Energy Efficiency ◽

Wireless Sensor Networks ◽

Sensor Networks ◽

Energy Efficient ◽

Mac Protocol ◽

Mac Protocols ◽

Sensor Nodes ◽

Wireless Sensor ◽

Industrial Automation ◽

Time Critical

MAC protocol design in Wireless sensor networks becomes vibrant research field for the past several years. In this paper an EE-Hybrid MAC protocol (Energy efficient hybrid Medium Access Control) has been proposed, which is energy efficient and low latency MAC protocol, which uses interrupt method to assign priority for certain wireless sensor nodes assumed to be present in critical loops of industrial process control domain. EE-Hybrid MAC overcomes some of the limitations in the existing approaches. Industrial wireless sensor network require a suitable MAC protocol which offers energy efficiency and capable of handling emergency situations in industrial automation domain. Time critical and mission critical applications demands not only energy efficiency but strict timeliness and reliability. Harsh environmental condition and dynamic network topologies may cause industrial sensor to malfunction, so the developed protocol must adapt to changing topology and harsh environment. Most of the existing MAC protocols have number of limitations for industrial application domain In industrial automation scenario, certain sensor loops are found to be time critical, where data’s have to be transferred without any further delay. The proposed EE-Hybrid MAC protocol is simulated in NS2 environment, from the result it is observed that proposed protocol provides better performance compared to the conventional MAC protocols.

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The Research of MAC Protocol Based on Fire System for Wireless Sensor Networks

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.383-390.4446 ◽

2011 ◽

Vol 383-390 ◽

pp. 4446-4450

Author(s):

Qing Hui Wang ◽

Yong Huan Ji ◽

Hong Yan Guo

Keyword(s):

Wireless Sensor Networks ◽

Computer Simulation ◽

Energy Consumption ◽

Sensor Networks ◽

Duty Cycle ◽

Energy Efficient ◽

Mac Protocol ◽

Critical Issue ◽

Wireless Sensor ◽

Transmission Period

Energy efficiency is a critical issue for sensornetwork. In this paper, we propose an energy efficient context adaptive MAC protocol for wireless sensor networks. The existing approaches try to minimize energy consumption by controlling the duty cycle of transmission period. The New-MAC forecast energy according to the Markov chain, then adjusts the duty cycle through the energy size, then adjusts the duty cycle through the energy size. Computer simulation using NS2 reveals that the proposed protocol significantly reduces the energy consumption compared with the existing S-MAC.

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An Enhanced Cross-Layer MAC Design for Energy Efficiency in Wireless Sensor Networks

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.734-737.3038 ◽

2013 ◽

Vol 734-737 ◽

pp. 3038-3041 ◽

Cited By ~ 1

Author(s):

Guo Yan Yang ◽

Xin Guan

Keyword(s):

Energy Efficiency ◽

Wireless Sensor Networks ◽

Energy Consumption ◽

Sensor Networks ◽

Energy Efficient ◽

Mac Protocol ◽

Wireless Sensor ◽

New Approach ◽

Main Research ◽

Mac Layers

In wireless sensor networks, the main research objective is the development of algorithms and protocols ensuring minimal energy consumption. Most proposed solutions are based on one-layer stack model approach. In this paper, we propose an energy efficient MAC protocol that applies routing and MAC layers jointly. In this new approach, the interactions between MAC and Routing layers are fully exploited to achieve energy efficiency for wireless sensor networks. In the proposed MAC protocol, we solve the forced wake-up problem in the adaptive S-MAC to reduce energy consumption of the nodes, by exploiting routing information to wake-up only nodes belonging to a routing path. Simulation results show that the proposed CL-MAC protocol significantly improves energy efficient compared to the adaptive S-MAC.

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