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Wireless Sensor Networks (WSN) is a field which has gained much importance in the past decade. WSN contain sensor nodes which are battery powered and hence reducing energy consumption is the most challenging issue in such systems. One important method to reduce energy consumption in WSN is to do cross layer optimization. This paper gives a PHY-MAC cross layer design which reduces the energy consumption...
Multi-channel MAC protocols gains very much importance because of the necessity to enhance the network capacity of wireless networks. Existing MAC protocols rarely exploit the non-interfering multiple channels of 802.11 standard. This paper evaluates a channel allocation method which improves the overall throughput of 802.11 MAC. This method reduces collision considerably, by allowing each node to...
Wireless sensor networks (WSNs) are large networks comprised of small sensor nodes, which are capable of sensing data from the surrounding environment, and forwarding the data collected from other sensor nodes to the sink. For energy efficient operation of WSNs, considerable research has been going on in the area of Medium Access Control (MAC) protocol design. The IEEE 802.15.4 MAC has been designed...
Wireless Sensor Networking is an important area of research due to its wide and varied applications, especially in environmental monitoring and health monitoring. Battery-powered Wireless Sensor Networks (WSNs) face the problem of limited lifetime due to fast depletion of charge of typical batteries. The incorporation of energy harvesting in WSNs thus becomes crucial for extending the lifetime of...
Energy Harvesting Wireless Sensor Networks (EH-WSNs) are of great interest to researchers due to their various applications in areas such as environmental monitoring, process monitoring and tracking surveillance systems. Sensors are deployed in hostile environment in random fashion making a self-organized topology. Medium Access Control (MAC) plays a vital role in the power saving mechanism of EH-WSNs...
Wireless Sensor Networks (WSNs) are of great interest to researchers due to their various applications in areas such as environmental monitoring, process monitoring and tracking surveillance systems. Sensors are deployed in hostile in random fashion giving self-organized topology. Medium Access Control (MAC) plays a vital role in the power saving mechanism of WSNs. MAC schemes for WSNs are different...
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