This paper proposes an energy-efficient hybrid medium access control protocol based on precise of duty cycle. To save energy, the proposed optimally adjusts trans-receiver radio's turn-on and off time. By estimating slot utilization, both cluster head sensing devices energy. During reserved duration, each sensor device periodically checks its buffer status turns radio when becomes empty. Each s...

Energy efficiency is one of the major challenges in IEEE 802.15.4 based Internet Things (IoT). In Medium Access Control (MAC) layer standard, Guaranteed Time Slot (GTS) are allocated to IoT devices for data transmission. However, GTS allocation does not consider residual energy resulting reduced life cycle these devices. this paper, we propose an efficient MAC protocol RF harvesting The propose...

This article presents C-MAC, a Configurable Protocol for medium access control in wireless sensor networks. C-MAC works as a framework of medium access control strategies, with a transparent configuration system. The protocol aggregates different services, each implemented in several different strategies. Applications may configure different communication parameters in compile-time and run-time...

WP02/1 Abstract— Technological advances in wireless communications have made it possible the existence of an ad hoc network which is roughly a multi-hop wireless network of mobile nodes without any fixed infrastructure. The nodes of the ad hoc network operate in a distributed manner and share a common medium for data transmission. The Medium Access Control (MAC) protocol is a set of rules deter...

Medium access control for wireless sensor networks has been a very active research area in the recent years. The traditional wireless medium access control protocol such as IEEE 802.11 is not suitable for the sensor network application because these are battery powered. The recharging of these sensor nodes is expensive and also not possible. The most of the literature in the medium access for t...

In energy harvesting IoT networks, an energy queue state of an IoT device will change dynamically and the number of IoT devices that transmit data to the IoT AP will vary in a frame. So we need a MAC protocol to adjust the frame length taking the amount of energy of IoT devices into consideration. Since the existing Framed slotted ALOHA (F-ALOHA) Medium Access Control (MAC) protocol utilizes th...

Emergency services, and automated vehicle platoons are frequently used examples of the need for real-time ad hoc communication, which demand that communication be time bounded overall. The medium access control protocol regulates access to the medium. Time division protocols give deterministic, time bounded delivery of messages. TDMA, time division multiple access forms the basis of the time bo...