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A Self-adaptive Duty Cycle Receiver Reservation MAC Protocol for Power Efficient Wireless Sensor Networks

Affiliations

  • Department of CSE, Sathyabama University, Chennai - 600119, Tamil Nadu, India
  • Deparment of CSE, R.M.K College of Engineering and Technology, Chennai - 601206, Tamil Nadu, India

Abstract


Objectives: In Wireless Sensor Networks nodes are deployed into hazardous environments with limited battery source. The nodes must operate with utmost power efficiency to continue performing critical tasks. Methods/Statistical Analysis: In order to be power efficient, the underlying MAC protocol of the network has to be designed to expend minimal energy during the functioning of the nodes. Most of the MAC protocols achieve energy efficiency by controlling the duty cycle. Selfadaptive duty cycle along with receiver reservation provides a viable means to reduce energy expenditure of the nodes. Findings: In this paper, we propose a receiver reservation MAC protocol that utilizes self-adaptive duty cycling which bring better power efficiency in WSN. The sleep interval of the nodes is regulated based on the self-adaptive factor. This factor is determined based on the packets received at the node in current and previous transmission cycles. Application/ Improvements: Receiver reservation helps the network to avoid collisions and back offs. The self-adaptive nature of the MAC protocol enables the nodes to tune their duty cycle based on the data transmitted in the network.

Keywords

Collisions and Back Offs, Energy Expenditure, Receiver Reservation, Self-adaptive Factor, Sleep Interval, Transmission Cycles.

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