Bluetooth Dual-Mode Access Point
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RUCKUS® R550 Indoor Wi-Fi 6 (802.11Ax) Access Point for Dense Environments
DATA SHEET RUCKUS® R550 Indoor Wi-Fi 6 (802.11ax) Access Point for Dense Environments Wi-Fi capacity requirements in classrooms, office spaces, and medium-size venues are rising due to the increase in the number of Wi-Fi connected devices. An increase in bandwidth requirements for applications and an ever-growing assortment of IoT devices puts further strain on already stretched Wi-Fi Benefits networks. Stunning Wi-Fi performance The RUCKUS® R550 access point (AP) with the latest Wi-Fi 6 (802.11 ax) technology delivers the Mitigate interference and extend coverage with patented BeamFlex®+ adaptive antenna technology ideal combination of increased capacity, improved coverage and affordability in dense utilizing several directional antenna patterns. environments. The R550 is our mid- range dual-band, dual-concurrent AP that supports four spatial streams (2x2:2 in 2.4GHz/5GHz). The R550 supports peak data rates of up to 1774 Mbps and Serve more devices efficiently manages up to 512 clients connections. Connect more devices simultaneously with four MU- MIMO spatial streams and concurrent dual-band Also, wireless requirements within enterprises are expanding beyond Wi-Fi with BLE, Zigbee and 2.4/5GHz radios while enhancing device performance. many other non-Wi-Fi wireless technologies resulting in creation of network silos. Enterprises need a unified platform to eliminate network silos. The RUCKUS AP portfolio is equipped to solve these Converged Access Point challenges. Allows customers to eliminate siloed networks and unify WiFi and non-WiFi wireless technologies into one single The R550 has built-in IoT radios with onboard BLE and Zigbee capabilities. -
IEEE 802.11 Standard Has Been Around Since 1997, Work Continues to Make It More Adaptable to the Demand for Higher Data Rates and True Wireless flexibility
Although the IEEE 802.11 standard has been around since 1997, work continues to make it more adaptable to the demand for higher data rates and true wireless flexibility. William Stallings IEEE 802.11: Moving Closer to Practical Wireless LANs ireless LANs have quickly be- began relying more on inexpensive twisted-pair come a significant niche in the cabling for LANs—in particular Category 3 and LAN market. As adjuncts to Category 5 unshielded twisted pair. Category 3 traditional wired LANs, they sat- wiring is the traditional telephone wiring found Wisfy mobility, relocation, and ad hoc networking in every office building; category 5 wiring is requirements and provide a way to cover loca- higher-performance wiring able to carry higher tions that are difficult to wire. data rates. Many older buildings are prewired As the name suggests, a wireless LAN uses a with an abundance of Category 3 cable, and many wireless transmission medium. Until relatively newer buildings are prewired with Category 5. recently, few organizations used wireless LANs Thus, there was little motivation to replace wired because they cost too much, their data rates were LANs with wireless. too low,they posed occupational safety problems This is not true of all environments, how- because of concerns about the health effects of ever. For some, the motivation to use wireless electromagnetic radiation, and the spectrum used LANs is much higher. Buildings with large open required a license. Today, however, these prob- areas, such as manufacturing plants, stock lems have largely diminished, and wireless LAN exchange trading floors, and warehouses, make popularity is skyrocketing. -
Wireless Technologies and the SAFECOM Sor for Public Safety Communications
Wireless Technologies and the SAFECOM SoR for Public Safety Communications Leonard E. Miller Wireless Communication Technologies Group Advanced Network Technologies Division Information Technology Laboratory National Institute of Standards and Technology Gaithersburg, Maryland 2005 Cover photo: Santa Clara County antenna farm, from http://www.sccfd.org/frequencies.html ii Wireless Technologies and the SAFECOM SoR for Public Safety Communications Preface The Problem: Lack of Capacity, Interoperability, and Functionality National assessments of public safety communications (PSC) that were made in the 1990s found that the nation’s public safety agencies faced several important problems in their use of radio communications1: • First, the radio frequencies allocated for Public Safety use have become highly congested in many, especially urban, areas…. • Second, the ability of officials from different Public Safety agencies to communicate with each other is limited…. Interoperability is hampered by the use of multiple frequency bands, incompatible radio equipment, and a lack of standardization in repeater spacing and transmission formats. • Finally, Public Safety agencies have not been able to implement advanced features to aid in their mission. A wide variety of technologies—both existing and under development —hold substantial promise to reduce danger to Public Safety personnel and to achieve greater efficiencies in the performance of their duties. Broadband data systems, for example, offer greater access to databases and information that can save lives and contribute to keeping criminals “off the street.” Video systems promise better surveillance capabilities, increased use of robotics in toxic and hazardous environments, and better monitoring and tracking of both personnel and equipment. The national assessments of PSC have had significant impact on legislation, regulation, and funding. -
Glossary of Terminology
Glossary of Broadband Terminology This glossary was compiled by Ray Elseth of Broadband Development 3 (http://www.bbd3.com) and Thomas Asp of Virchow Krause (http://virchowkrause.com), and is a supplement to “Broadband Access: The Local Government Role” by Thomas Asp, Harvey L. Reiter, Jerry Schulz, and Ronald L. Vaden (IQ Report 36, no. 2 [Washington, D.C.: ICMA, 2004]). 802.11 A family of specifications covering wireless connectivity between devices normally located within 100’ to 300’ of each other. Often referred to as Wireless Local Area Network (WLAN). Most common implementation is 802.11b (see Wi- Fi), but 802.11a and 802.11g are also in active use. 802.15 A family of specifications covering wireless connectivity between devices normally located within 10’ to 30’ of each other. Often referred to as Wireless Personal Area Network (WPAN). Implemented as “Bluetooth.” 802.16 A family of specifications covering wireless connectivity between devices normally located within 1 to 30 miles of each other. Often referred to as Wireless Metropolitan Area Network (WMAN). Access Point (AP) A hardware device that acts as a connectivity hub to permit users of a wireless device to connect to a wired local area network. Provides a bridge between Ethernet wired LANs (local area networks) and the wireless network. Access points are the connectivity point between Ethernet wired networks and devices equipped with a wireless LAN adapter card. Antenna The equipment that allows the transmission or reception of radio frequency energy. Asynchronous Digital A technology that allows high-speed data to be sent over a Subscriber Line single pair of existing copper telephone lines, with data rates (ADSL) for receiving data differing from data rates for sending data. -
Wireless Networking Best Practices Guide
Oracle® MICROS Hardware Wireless Networking Best Practices Guide E80342-07 October 2020 Oracle MICROS Hardware Wireless Networking Best Practices Guide, E80342-07 Copyright © 2011, 2020, Oracle and/or its affiliates. All rights reserved. This software and related documentation are provided under a license agreement containing restrictions on use and disclosure and are protected by intellectual property laws. Except as expressly permitted in your license agreement or allowed by law, you may not use, copy, reproduce, translate, broadcast, modify, license, transmit, distribute, exhibit, perform, publish, or display any part, in any form, or by any means. Reverse engineering, disassembly, or decompilation of this software, unless required by law for interoperability, is prohibited. The information contained herein is subject to change without notice and is not warranted to be error-free. If you find any errors, please report them to us in writing. If this is software or related documentation that is delivered to the U.S. Government or anyone licensing it on behalf of the U.S. Government, then the following notice is applicable: U.S. GOVERNMENT END USERS: Oracle programs (including any operating system, integrated software, any programs embedded, installed or activated on delivered hardware, and modifications of such programs) and Oracle computer documentation or other Oracle data delivered to or accessed by U.S. Government end users are "commercial computer software" or “commercial computer software documentation” pursuant to the applicable -
Wireless Networking Summary 11-4 Bluetooth, Wimax, and RFID Questions and Problems
11_0131358383_ch11s.qxd 8/1/08 1:04 PM Page 412 Wireless 11 Networking CHAPTER 11_0131358383_ch11s.qxd 8/1/08 1:04 PM Page 413 CHAPTER OUTLINE 11-1 Introduction 11-5 Securing Wireless LANs 11-2 The IEEE 802.11 Wireless LAN 11-6 Configuring a Point-to-Multipoint Standard Wireless LAN: A Case Study 11-3 802.11 Wireless Networking Summary 11-4 Bluetooth, WiMAX, and RFID Questions and Problems OBJECTIVES ● Define the features of the 802.11 wireless ● Examine how site surveys are done for wire- LAN standard less LANs ● Understand the components of the wireless ● Investigate the issues of securing a wireless LAN LAN ● Explore how wireless LANs are configured ● Explore how to configure a point-to-multi- point wireless LAN KEY TERMS WLAN pseudorandom WiMAX Basic Service Set (BSS) hopping sequence BWA ad hoc OFDM NLOS access point U-NII last mile transceiver MIMO Radio Frequency Extended Service Set Wi-Fi Identification (RFID) (ESS) SSID backscatter hand-off site survey Slotted Aloha roaming inquiry procedure beacon CSMA/CA paging procedure WPA DSSS piconet EAP ISM pairing RADIUS FHSS Passkey 413 11_0131358383_ch11s.qxd 8/1/08 1:04 PM Page 414 11-1 INTRODUCTION WLAN This chapter examines the features and technologies used in the wireless local area Wireless local area network network (WLAN). Wireless networking is an extension of computer networks into the RF (radio frequency) world. The WLAN provides increased flexibility and mo- bility for connecting to a network. A properly designed WLAN for a building pro- vides mobile access for a user from virtually any location in the building. -
The Evolution of Wimax – Features and Applications
International Journal of Emerging Technologies in Engineering Research (IJETER) Volume 4, Issue 5, May (2016) www.ijeter.everscience.org The Evolution of Wimax – Features and Applications Sukhdeep Kaur, Jaipreet Kaur, Manjit Sandhu Assistant professor, Department of Electronics and Communication Engineering, GNDU Regional Campus, Sathiala (Amritsar) Punjab, India. Abstract – Wimax is used for providing broadband using wireless 1. 802.16-2004 is often called 802.16d, since that was medium mainly at 2.5GHz, 3.5GHz and 5.8GHz radio the working party that developed the standard. It is frequencies. It is also known as 4G technology. It delivers about 4 also frequently referred to as "fixed Wimax" since it times fast internet compared to its 3G counterpart. OFDM has no support for mobility. technique has increased the speed as it carries multiple carriers, each carrying more than one data bits based on modulation 2. 802.16e-2005 is an amendment to 802.16-2004 and is techniques (QPSK, 16QAM). The carriers are concisely packed often referred as 802.16e. It introduced support for together to save bandwidth. Intel is behind the development and mobility, amongst other things and is therefore also proliferation of Wimax throughout the world. This paper reviews known as "mobile Wimax". the basic architecture, features, advantages, limitations and some of the applications also. The comparison of Wimax with edge 2. ARCHITECTURE technologies is also discussed. Wimax is a term coined to describe standard, interoperable Index Terms – fixed Wimax, mobile Wimax, IEEE 802.16, implementations of IEEE 802.16 wireless networks. Wimax MIMO, CPE, QoS. architecture is described as: 1. -
Device-To-Device Communications in LTE-Advanced Network Junyi Feng
Device-to-Device Communications in LTE-Advanced Network Junyi Feng To cite this version: Junyi Feng. Device-to-Device Communications in LTE-Advanced Network. Networking and Internet Architecture [cs.NI]. Télécom Bretagne, Université de Bretagne-Sud, 2013. English. tel-00983507 HAL Id: tel-00983507 https://tel.archives-ouvertes.fr/tel-00983507 Submitted on 25 Apr 2014 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. N° d’ordre : 2013telb0296 Sous le sceau de l’Université européenne de Bretagne Télécom Bretagne En habilitation conjointe avec l’Université de Bretagne-Sud Ecole Doctorale – sicma Device-to-Device Communications in LTE-Advanced Network Thèse de Doctorat Mention : Sciences et Technologies de l’information et de la Communication Présentée par Junyi Feng Département : Signal et Communications Laboratoire : Labsticc Pôle: CACS Directeur de thèse : Samir Saoudi Soutenue le 19 décembre Jury : M. Charles Tatkeu, Chargé de recherche, HDR, IFSTTAR - Lille (Rapporteur) M. Jean-Pierre Cances, Professeur, ENSIL (Rapporteur) M. Jérôme LE Masson, Maître de Conférences, UBS (Examinateur) M. Ramesh Pyndiah, Professeur, Télécom Bretagne (Examinateur) M. Samir Saoudi, Professeur, Télécom Bretagne (Directeur de thèse) M. Thomas Derham, Docteur Ingénieur, Orange Labs Japan (Encadrant) Acknowledgements This PhD thesis is co-supervised by Doctor Thomas DERHAM fromOrangeLabs Tokyo and by Professor Samir SAOUDI from Telecom Bretagne. -
Advantages and Limitations of Li- Fi Over Wi-Fi and Ibeacon Technologies By
ISSN (Online) 2321 – 2004 IJIREEICE ISSN (Print) 2321 – 5526 International Journal of Innovative Research in Electrical, Electronics, Instrumentation and Control Engineering ISO 3297:2007 Certified Vol. 4, Issue 11, November 2016 Review Paper: Advantages and Limitations of Li- Fi over Wi-Fi and iBeacon Technologies By Deepika D Pai Asst. Professor, (Sel Grade), Department of Electronics and Communication Engineering. Vemana Institute of Technology Abstract: Li-Fi can be thought of as a light-based Wi-Fi. That is, it uses light instead of radio waves to transmit information. And instead of Wi-Fi modems, Li-Fi would use transceiver-fitted LED lamps that can light a room as well as transmit and receive information. Light is inherently safe and can be used in places where radio frequency communication is often deemed problematic, such as in aircraft cabins or hospitals. So visible light communication not only has the potential to solve the problem of lack of spectrum space, but can also enable novel application. The visible light spectrum is unused; it's not regulated, and can be used for communication at very high speeds. This paper compares the Li-Fi technology with Wi-Fi and iBeacon technologies. Keywords: Li-fi, Wi-Fi, iBeacon, visible light communication, BLE communication I. INTRODUCTION In recent trends, wireless communication Wi-Fi is gaining government licence. This new Ethernet standard was tremendous importance. CISCO reported that the compatible with devices and technology working on radio compound annual growth rate (CAGR) of mobile data waves and came to be known as ―Wi-Fi‖ only in 1999. usage per month is around 80% which has led to the saturation of the network spectrum consequently bringing iBeacon: The technology was first introduced by Apple at down its efficiency. -
The Future of Personal Area Networks in a Ubiquitous Computing World
Copyright is owned by the Author of the thesis. Permission is given for a copy to be downloaded by an individual for the purpose of research and private study only. The thesis may not be reproduced elsewhere without the permission of the Author. The Future of Personal Area Networks in a Ubiquitous Computing World A thesis presented in partial fulfillment of the requirements for the degree of Master of Information Sciences in Information Systems at Massey University, Auckland New Zealand Fei Zhao 2008 ABSTRACT In the future world of ubiquitous computing, wireless devices will be everywhere. Personal area networks (PANs), networks that facilitate communications between devices within a short range, will be used to send and receive data and commands that fulfill an individual’s needs. This research determines the future prospects of PANs by examining success criteria, application areas and barriers/challenges. An initial set of issues in each of these three areas is identified from the literature. The Delphi Method is used to determine what experts believe what are the most important success criteria, application areas and barriers/challenges. Critical success factors that will determine the future of personal area networks include reliability of connections, interoperability, and usability. Key application areas include monitoring, healthcare, and smart things. Important barriers and challenges facing the deployment of PAN are security, interference and coexistence, and regulation and standards. i ACKNOWLEDGEMENTS Firstly, I would like to take this opportunity to express my sincere gratitude to my supervisor – Associate Professor Dennis Viehland, for all his support and guidance during this research. Without his advice and knowledge, I would not have completed this research. -
Pakedge Introduces Its W5N Wireless Access Point with Dual-Band Radio for Seamless Wi-Fi Roaming in Larger Wireless Networks
pakedgedevice&software inc. Press Release for Pakedge W5N2 For Immediate Release Date: November 15, 2012 Contact: Nick Phillips, 650-385-8712, [email protected] Frank Doris / Media Relations, 631-645-5668, [email protected] Pakedge Introduces Its W5N2 Wireless Access Point With Dual-Band Radio for Seamless Wi-Fi Roaming In Larger Wireless Networks Foster City, CA – Pakedge Device & Software today announced the introduction of its W5N2 Wireless Access Point With Dual-Band Radio, which incorporates the company’s exclusive Residential Virtual Cell Technology to enable multiple wireless access points in a large network to function as a single “virtual” wireless access point (WAP). This enables seamless Wi-Fi roaming without handoffs for any Wi-Fi device, whether a laptop, touch panel, iPad®, touch VoIP Wi-Fi phone or other portable device. Here’s how non-virtualized or traditional Wi-Fi works: wireless networks that cover a large area require multiple WAPs to achieve adequate coverage. However, when a person moves from the coverage area of one WAP to another, there is typically an interruption in service as one WAP "hands off" to another. The result is an interrupted video stream, phone call or data stream, or lost commands from a touch panel. In contrast to traditional Wi-Fi, the Pakedge W5N2 and its companion CTL-W5N Wireless Virtualization Management Controller provide an extremely reliable Wi-Fi roaming solution. The W5N2 and CTL-W5N use Residential Virtual Cell Technology to link the operation of all the wireless access points in a network together so that they all appear as a single wireless access point to a device (client), even though many wireless access points are installed. -
Ethernet (IEEE 802.3)
Computer Networking MAC Addresses, Ethernet & Wi-Fi Lecturers: Antonio Carzaniga Silvia Santini Assistants: Ali Fattaholmanan Theodore Jepsen USI Lugano, December 7, 2018 Changelog ▪ V1: December 7, 2018 ▪ V2: March 1, 2017 ▪ Changes to the «tentative schedule» of the lecture 2 Last time, on December 5, 2018… 3 What about today? ▪Link-layer addresses ▪Ethernet (IEEE 802.3) ▪Wi-Fi (IEEE 802.11) 4 Link-layer addresses 5 Image source: https://divansm.co/letter-to-santa-north-pole-address/letter-to-santa-north-pole-address-fresh-day-18-santa-s-letters/ Network adapters (aka: Network interfaces) ▪A network adapter is a piece of hardware that connects a computer to a network ▪Hosts often have multiple network adapters ▪ Type ipconfig /all on a command window to see your computer’s adapters 6 Image source: [Kurose 2013 Network adapters: Examples “A 1990s Ethernet network interface controller that connects to the motherboard via the now-obsolete ISA bus. This combination card features both a BNC connector (left) for use in (now obsolete) 10BASE2 networks and an 8P8C connector (right) for use in 10BASE-T networks.” https://en.wikipedia.org/wiki/Network_interface_controller TL-WN851ND - WLAN PCI card 802.11n/g/b 300Mbps - TP-Link https://tinyurl.com/yamo62z9 7 Network adapters: Addresses ▪Each adapter has an own link-layer address ▪ Usually burned into ROM ▪Hosts with multiple adapters have thus multiple link- layer addresses ▪A link-layer address is often referred to also as physical address, LAN address or, more commonly, MAC address 8 Format of a MAC address ▪There exist different MAC address formats, the one we consider here is the EUI-48, used in Ethernet and Wi-Fi ▪6 bytes, thus 248 possible addresses ▪ i.e., 281’474’976’710’656 ▪ i.e., 281* 1012 (trillions) Image source: By Inductiveload, modified/corrected by Kju - SVG drawing based on PNG uploaded by User:Vtraveller.