The IEEE 802.15.4 standard for LR-WPANs is becoming a de-facto standard for Wireless Sensor Networks (WSNs) applications in industrial fields. In this paper, we evaluate the latency performance of the IEEE 802.15.4 protocol based on a typical industrial scenario: a star network with 20 devices that send short messages (1 Byte) to the PAN coordinator. We analyzed the behavior of the GTS mechanis...

LTE Advanced is a well designed system that meets the requirements of 4G cellular systems. Its standard specification has been lately released. One of its main features is supporting relaying topology inspired from ad hoc multihop networks. This paper is a survey upon the relaying architecture of LTE Advanced standard based on 3GPP Release 10 specifications. A comparison with other relaying arc...

The IEEE has recently released IEEE 802.15.5 standard [3] to provide multi-hop mesh functions for low-rate wireless personal area networks (WPANs). In this paper, we extensively describe a link-layer reliable broadcast protocol referred to as timer-based reliable broadcast (TRB) [3] in the IEEE 802.15.5 standard. The TRB scheme exploits (1) bitmap based implicit ACK to effectively reduce the un...

Internet of Things (IOT) offers a new dimension technology and information where connectivity is available anywhere, anytime, for any purpose. IEEE 802.11 Wireless Local Area Network group standard that developed to answer the needs wireless communication (WI-Fi). Recently, working released 802.11ah or Wi-Fi HaLow as Wi-fi standard. This works on 1 GHz frequency band with broader coverage area,...

Recently, broadband wireless networks, such as IEEE 802.16 [1] and LTE, receive more and more attention from the researchers. Increasing the energy efficiency of the end clients in these systems is an important research task and the evaluation of the energy efficient mechanisms remains an open problem. In this paper we consider the sleep mode control algorithm of the novel metropolitan area net...

A physical layer simulation of an IEEE 802.15.4 transceiver is developed in accordance with the specifications detailed in the IEEE standard. The simulator is validated by comparing the bit-error-ratio (BER) versus signal-to-noiseratio (SNR) curve found from simulation with that expected from theory. A broadband non-Gaussian impulsive noise model described by a symmetric -stable (SS) distribu...