An RF-based indoor localization design targeted for wireless sensor networks (WSNs) is presented. The energy-efficiency of mobile location nodes is maximized by a localization medium access control (LocMAC) protocol. For location estimation, a location resolver algorithm is introduced. It enables localization with very scarce energy and processing resources, and the utilization of simple and lo...

Wireless sensor networks are networks of large quantities of compact microsensors with wireless communication capability. Emerging applications of data gathering range from the environmental to the military. Architectural challenges are posed for designers such as computational power, energy consumption, energy sources, communication channels and sensing capabilities. This work presents the cur...

Wireless sensor networks (WSNs) have gained worldwide attention in recent years. These are of great significance in resolving many real-world problems, and have attracted increasing research interests in recent years. In this paper, we consider a hybrid sensor network with fifty sensor nodes, where a subset of the nodes has movement capability, possibly at high energy expense. A static sensor n...

an efficient cluster head selection algorithm in wireless sensor networks is proposed in this paper. the implementation of the proposed algorithm can improve energy which allows the structured representation of a network topology. according to the residual energy, number of the neighbors, and the centrality of each node, the algorithm uses fuzzy inference systems to select cluster head. the alg...

Easy-to-use audio/video authoring tools play a crucial role in moving multimedia programs from research curiosity to mainstream applications. This paper describes the design and implementation of an interactive video authoring system called Zodiac, which employs an innovative edit history abstraction to support several unique editing features not found in existing commercial and research video ...

one of the main challenges in wireless sensor network is energy problem and life cycle of nodes in networks. several methods can be used for increasing life cycle of nodes. one of these methods is load balancing in nodes while transmitting data from source to destination. directed diffusion algorithm is one of declared methods in wireless sensor networks which is data-oriented algorithm. direct...

A Wireless Sensor Network (WSN) can be described as a collection of untethered sensor nodes. An important application of WSNs is in the field of real-time communication. Real-time communication is a critical service which requires a qualitative routing protocol for energy-efficient network communication. The judicious use of energy of the network nodes is essential and important for sustainabil...

In this paper, we propose an energy-efficient transmission technique known as the sleep/wake algorithm for a bicycle torque sensor node. This paper aims to highlight the trade-off between energy efficiency and the communication range between the cyclist and coach. Two experiments were conducted. The first experiment utilised the Zigbee protocol (XBee S2), and the second experiment used the Adva...

Purpose Minimizing the energy consumption in a wireless sensor node is important for lengthening lifetime of battery. Radio transmission most energy-consuming task node, and by compressing data online mode, it possible to reduce number periods. This study aims demonstrate that temporal compression methods present an effective method battery-powered node. Design/methodology/approach In this stud...