IEEE 802

Wireless Security Overview Wireless networks serve as the transport mechanism between devices and among devices and the traditional wired networks (enterprise networks and the Internet). Wireless networks are many and diverse but are frequently categorized into three groups based on their coverage range: Wireless Wide Area Networks (WWAN), Wireless Local Area Network (WLANs), Wireless Personal Area Network (WPAN )and etc. WWAN includes wide coverage area technologies such as 2G cellular, Cellular

IEEE 802.11b defines the physical layer and media access control (MAC) sublayer for communications across a shared, wireless local area network (WLAN). As Theodore Rappaport states, “At the physical layer, IEEE 802.11b operates at the radio frequency of 2.45 gigahertz (GHz) with a maximum bit rate of 11 Mbps. It uses the direct sequence spread spectrum (DSSS)

1. What are the main architectural components of a LAN? (Minimum word count: 60) The first characteristic in the LAN architecture is the physical arrangement of the network. This is how the nodes connect. The topology of an LAN is the design pattern of interconnections between the computers and network sectors. The second component is the method of access for the nodes. Specifically, how the nodes connect to the transmission medium. A network interface card is a device that permits computers

Aruba Migration Guide 802.11AC MIGRATION GUIDE 802.11ac Aruba Migration Guide Table of Contents Introduction 802.11AC basics Why 802.11ac? 802.11ac technology overview Backward compatibility RF spectrum Multistation MAC throughput > 1 Gbps 256 QAM Wider channels More spatial streams Downlink multi-user MIMO Pros of 802.11ac Cons of 802.11ac Strategy and planning for 802.11ac migration Site planning basics Planning process Minimum requirements and actions to implement 802.11ac Aruba

1 ) Energy Efficient Medium Access Protocol A medium access control layer is the most suitable level to address the energy efficiency. This layer is used to coordinate node access to the shared wireless medium. The MAC is the core of communication protocol stack which provides the basic for achieving Quality of Service (QoS) in any wireless networks. A versatile MAC should support diverse applications and different types of data such as continuous, periodic, burst and non-periodic data along with

There are 9 IEEE 802.11 services in total which can be classified into to categories: Station Services: Authentication, De authentication, Privacy, and MSDU delivery. Distribution System Services: Association, Disassociation, Distribution, Integration, and Re association. Station Services: The 802.11 standard defines services for providing functions among stations. • Authentication: 802.11 defines authentication services to control LAN access to a level equal to a wired link because wireless LANs

MEASUREMENT SCENARIO We set up a testbed to assess the proposed calculations. Two entrance systems, WiFi and Ethernet are joined with the VAN server, and the VAN server additionally functions as the door to people in general Internet. The WiFi connection is constrained to 2 Mbps, the Ethernet join for imitating the Cellular connection is restricted to 4 Mbps to consider asset limits, for example, foundation traffic, for instance. The high edge β is situated to 50 s and the discriminating limit off

Topic: Wi-Fi technology and its application in Business organizations Objective To understand the Wi-Fi technology and its applications in Indian business organisations Introduction In today’s high-tech world connectivity to networks is extremely important for organizations to survive. Networking is possible of various machines like computers, laptops, cell phones etc. This term paper talks of Wi-Fi, the wireless technology that allows internet connection to be broadcasted through

Wireless data has become the technology of the future. Data is being passed from one location to another without the human eye detecting this transaction. Wireless data is transferred in many forms from home networks, business networks, and cellular networks. Each of these networks operates on a different scale and technology. Home networks have been steadily growing over the years as manufacturers have developed new and easier to use devices that install quickly and give the owner the ability

IEEE 802.15.4: a wireless communication technology for large-scale ubiquitous computing applications Anis Koubâa, Mario Alves, Eduardo Tovar PP-HURRAY! Research Group, Polytechnic Institute of Porto Rua Dr. Antonio Bernardino de Almeida, 431, 4200-072 Porto, PORTUGAL {akoubaa, emt}@dei.isep.ipp.pt, mjf@isep.ipp.pt Abstract. Wireless Sensor Networks (WSNs) have been attracting increasing interest for supporting a new generation of ubiquitous computing systems with great potential for many applications