This paper proposes an accurate and computationally efficient implementation of the IEEE Std. 1459-2010 for power measurements. An is based on digital resonators embedded in a feedback loop. In first algorithm stage, unknown signal harmonic parameters are estimated. By this, voltage current signals processed independently each other. second components estimated (calculated) from spectra. To dem...

Thesis Author Thesis Supervisor Silvio Costa Sampaio Francisco Vasques Thesis Co-Supervisor Pedro F. Souto DHT-based Cluster Routing Protocol (DCRP): A Scalable Path Selection and Forwarding Protocol for IEEE 802.11s Mesh Networks Wireless Mesh Network (WMN) is a generic term that refers to a communication network composed of wireless nodes in a multi-hop topology, in which each node acts as a ...

Medical body area networks will employ a range of implantable and body worn devices to support a wide range of applications with diverse QoS requirements. The IEEE 802.15.6 working group is developing a communications standard for low power devices operating on, in and around the body and medical devices are a key application area of the standard. The ISO/IEEE 11073 standard addresses medical d...

Purpose:This contribution will be discussed for a vote as a possible PHY layer for the IEEE802.16.3 Air Interface Standard Notice: This document has been prepared to assist IEEE 802.16. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The co...

IEEE 802.15.4 is the prevailing standard for lowdata-rate wireless personal area networks. The IEEE 802.15.4 protocol has recently been adopted as a communication standard for low data rate, low power consumption and low cost Wireless Sensor Networks (WSNs). This protocol is quite flexible for a wide range of applications by adequately tuning its parameters. This feature is quite attractive for...

In IEEE 802.15.4/ZigBee Wireless Sensor Networks (WSNs) a specific node (called the PAN coordinator or sink) controls the whole network. When the network operates in a multihop fashion, the position of the PAN coordinator has a significant impact on the performance: it strongly affects network energy consumption for both topology formation and data routing. The development of efficient self-man...

The IEEE 802.11e which is an enhanced version of the 802.11 WLAN standards incorporates the Quality of Service (QoS) which makes it a better choice for multimedia and real time applications. In this paper we study various aspects concerned with 802.11e standard. Further, the analysis results for this standard are compared with the legacy 802.11 standard. Simulation results show that IEEE 802.11...