Wi fi
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The 802.11 standard defines specifications for wireless connectivity in local areas. Its goal is to develop MAC and PHY specifications for fixed, portable, and mobile wireless connections. It has had several amendments that specify standards for different PHY layers, frequencies, security protocols, and QoS capabilities. Devices using the 802.11 standard do not require a license to operate in the 2.4GHz and 5GHz public frequency bands defined by the standard.
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The document discusses key aspects of the IEEE 802.11 wireless networking standard, including:
- The 802.11 standard aims to specify wireless connectivity for fixed, portable, and mobile devices within a local area.
- It includes amendments for various physical layer specifications and frequencies, as well as security improvements.
- The standard supports both infrastructure and ad-hoc network models using technologies like Wi-Fi, and allows devices to access the network via the distributed coordination function or point coordination function.Wi fi copy
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The document discusses key aspects of the IEEE 802.11 wireless networking standard, including:
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The document discusses the IEEE 802.11 wireless networking standard. It aims to develop specifications for wireless connectivity within local areas. Key points include:
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This document discusses Wi-Fi technology. It provides an introduction to Wi-Fi, describing how Wi-Fi networks work and the components involved like access points and Wi-Fi cards. It then covers the different Wi-Fi standards (802.11b, 802.11a, 802.11g), how they operate and their benefits. The document also discusses Wi-Fi configuration, security methods to protect networks, and the advantages and limitations of Wi-Fi technology.More Related Content
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The document outlines a life skills academy curriculum presented in four modules for elementary, middle, and high school students. It covers the implications of life skills education, self-determination skills, community-based training, and vocational skills, emphasizing the importance of teaching embedded skills and supporting students in their transitions. Additionally, it addresses the need for personalized planning and effective communication to help students set goals and succeed in various life and job scenarios. Social Media
Social MediaAchyutTope
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The document highlights the significance of social media, particularly Facebook, for networking and sharing information within unions, emphasizing that a large portion of the global population is active on the platform. It provides guidelines for responsible usage, including maintaining professionalism, avoiding inappropriate content, and the importance of privacy settings. Additionally, it encourages regular engagement with the union's updates through likes, shares, and thoughtful interactions.Junk food vs_healthydiet
Junk food vs_healthydietAchyutTope
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Junk food refers to items considered to have little nutritional value, often high in saturated fats, salt, or sugar, and lacking essential nutrients. A healthy diet, in contrast, should provide a balanced intake of macronutrients and micronutrients to support health and mitigate chronic illness risks. Nutrients can be sourced from various foods, emphasizing the importance of dietary diversity for overall well-being.Laser
Laser AchyutTope
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The document provides information about a lecture on lasers, including semiconducting lasers. It defines lasers and discusses population inversion and the materials used for semiconducting lasers. It also mentions lasers for fiber optic communication and quantum well devices. The document provides reading materials on lasers, population inversion, diode lasers, and their application to optical fibers. It announces an upcoming test on LEDs and lasers and gives information about assignments, tests, and exams in the course. Embedded Systems
Embedded SystemsAchyutTope
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The document provides an overview of embedded systems, defining them as hardware and software combinations functioning within larger machines, like microprocessors in automobile engines. It outlines various application areas including consumer products, medical systems, office equipment, and automotive systems. Topics covered in class range from servo programming to evolutionary algorithms and robotics models.The Marketing Mix
The Marketing MixAchyutTope
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The document discusses the marketing mix, focusing on the 7Ps: price, product, promotion, place, people, process, and physical environment. It highlights the significance of understanding market dynamics, pricing strategies, and product differentiation to achieve competitive advantage. The content elaborates on methods to enhance product appeal and strategies for effective promotion.Structure of the earth
Structure of the earthAchyutTope
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The document explains the four main layers of the Earth: the crust, mantle, outer core, and inner core, detailing their characteristics and composition. It also describes a hands-on activity using food items to represent these layers, instructing participants on how to create a model of the Earths structure. Lastly, a review section tests knowledge of the material presented. Fundamentals of Indoor Sports Floors
Fundamentals of Indoor Sports FloorsAchyutTope
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This document discusses different types of indoor sports flooring materials including rubber, vinyl, polyurethane, and polypropylene. Synthetic flooring provides better shock absorption and energy return compared to concrete floors, helping to reduce surface-related injuries and fatigue. Synthetic floors are also multipurpose and can be used for various indoor court sports.Career choices
Career choicesAchyutTope
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This document provides guidance on career planning and outlines several key steps. It discusses evaluating your interests by making a list of enjoyable activities and reflecting on the skills and challenges involved. Determining your career goal is also addressed, noting it should be based on your skills, interests, and opportunities while guiding your path rather than drifting. The overall process involves understanding your interests and skills, researching career options that match them, and preparing for your targeted career.Building confidence ppt
Building confidence pptAchyutTope
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Marie is worried about an upcoming presentation. The document provides tips for Marie to build confidence by planning what she will say in her presentation, practicing delivering it, and relaxing. It advises planning the main messages and examples, and practicing introduction, eye contact, speaking slowly and clearly so everyone can hear, and staying on message.Ad
Wi fi
- 1. WiFi 1 WiFi Is for Wireless Fidelity Or IEEE 802.11 Standard By Greg Goldman
- 2. WiFi 2 What is the goal of 802.11 standard ? To develop a Medium Access Control (MAC) and Physical Layer (PHY) specification for wireless connectivity for fixed, portable and moving stations within a local area.
- 3. WiFi 3 802.11 sub-standards(amendments ) . 802.11 MAC (Media Access Control) ratified 1999 802.11b PHY 2.4 GHz (max 11 Mbps) ratified 1999 802.11a PHY 5.0 GHz (max 54 Mbps) ratified 1999 802.11g PHY 2.0 GHz (max 54 Mbps) ratified 2003 802.11i Security draft number XXX 802.11e QoS, Multimedia draft number XXX 802.11h European regulations for 5GHz draft number XXX 802.11h Japan regulations for 5GHz draft number XXX
- 4. WiFi 4 Do I need any license to use 802.11 device ? No , 2.4 GHz and 5.0 GHz are public available frequency !!!
- 5. WiFi 5 Context with OSI layers
- 6. WiFi 6 Logical Link Control Services
- 7. WiFi 7 Standard 802.11 frame format
- 8. WiFi 8 Frames types and subtypes Three types of frames: Control (ACK,RTS,CTS ,Power Save ) Management (Beacon,Probe Request ,Probe Response, Association request , Association response ) Data (Data, Null Data, Data_CF_Ack , .)