802.11ac is a fifth generation WLAN standard. The transfer speed of this standard is three times higher than the speed of its predecessor and is at the same time much faster than the standard that emerged in 1997. Its security is improved, and both the capacity and the range of this standard are significantly enlarged. Those features play a key role in its quality improvement. Its speed reaches up to 1Gbps, enabling high bandwidth transfer on multiple devices at the same time. The 5GHz channel reduces the number of errors. There is large number of wireless devices that broadcast equivalent omnidirectional signals but when using the 802.11ac standard there is an option to find the location of the broadcasting device in the network. Using this option, the sender can locate and send the packages directly to the device which is connected to the Internet and that is the reason why the signal is stronger, clearer and three times faster. The aim of this research would be to analyze all characteristics mentioned above and their practical implementation in a device that uses 802.11ac standard.
The need for speed of a wireless network is always insatiable. The first standard that appeared fifteen years ago provided speeds of 1 Mbps and 2 Mbps to be used in office buildings where mobility was not a requirement [5].
The first Wi-Fi device was introduced in 1997. For the first time the users were unrestricted with a physical connection and could move freely while they accessed the
Wireless network infrastructure has become just another connection method for corporate and home users alike. This rapid acceptance can be attributed from:
Thus the speed and reliability can be improve by judging the number of antennas. In the aspect of data rate, Option 1 has the highest transfer rate comparing to routers that has single-band capabilities. This indicates that Option 1 is able to perform better by transferring 600Mb data per second, 150 Mb more than other routers. Option 1 is strongly recommended as it is more affordable in prices with comparably better performance. Furthermore, Option 1 is equipped with various wireless LAN standard that provides faster and reliable wireless signals. It uses either 2.4GHz (single band) or 5GHz (dual band) band of frequencies in which wireless communications operate. Demands of dual band arise when there are intensive work within a LAN network and provides better internal network performance due to less interference (Lynn,
This is a direct extension of the 802.11b that extends the maximum data rate to 54Mbps, making it possible to serve up to five times as many users. Our Wi-Fi network is based on the IEEE 802.11 b/g standards, which is the most commonly used standard. We have added Wi-Fi access points in our network to give easier access to corporate data and services. Most of the devices in this network, for example the personal computers, smartphones, digital cameras, tablets and digital audio players connected using the Wi-Fi technology. The hotspot will be in the range of 20 meters (66 feet) indoors and a greater range outside.
Today’s current standard of 802.11 is 802.11ac. When comparing newer routers for home use, you will run across routers labeled AC1200, AC1750, AC3200, and so on. The “AC” refers to the wireless standard, while the number following it refers to the speed. The current range of 802.11ac routers can provide speeds up to 1300Mbps on the 5 GHz band, and up to 450 Mbps on 2.4 GHz band. The base level for 802.11ac is more than twice the speed offered from the previous standard, 802.11n. Most routers available in stores today offer 802.11n or 802.11ac, older standards such the “a,” “b,” and, “g” are out of
WiMAX can transmit speeds up to 50km at 280mbps, and provides options for use in point to point and multipoint configurations.
It was designed to replace 802.11a, 802.11b and 802.11g. It has the fastest transfer rate of (600Mbps) and the longest signal range compared to its predecessors. It operates in both 2.4GHz and 5GHz range.
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Wi-Fi Protected Access 2, the follow on security method to WPA for wireless networks that provides stronger data protection and network access control. It provides enterprise and consumer Wi-Fi users with a high level of assurance that only authorized users can access their wireless networks. Based on the IEEE 802.11i standard, WPA2 provides government grade security by implementing the National Institute of Standards and Technology (NIST) FIPS 140-2 compliant AES encryption algorithm and 802.1x-based authentication.
In the recent years, wireless technologies have taken a new dimension in the ways society lives. Wireless broadband is available to everyone. Whether the users are at home, driving the car, sitting in the park, and it would even work while people are a pleasure boat ride in the middle of a lake. And because of this, the need to have information at any time and be connected in all places, all the time has been satisfied.
Ciampa, M. (2013). WNA Guide to Wireless LAN’s (3rd ed.). [VitalSource Bookshelf]. Retrieved from http://www.devryu.net/
The market for wireless communications has experienced incredible growth over recent years and wireless LANs have rapidly become a very
It’s very important to determine the device and application requirements based on bandwidth, protocols and frequency. In wireless network, bandwidth, protocols and sometime environmental conditions affect the speed of the channel so we need to calculate the aggregate throughputs before designing the network. Today, users carry Wi-Fi devices such as notebooks, laptops, tablets and Smartphone’s so total throughput must be calculated by estimating number of connections rather than the number of the seats. Some common wireless networking standards such as 802.11a/b/g/n invented in the IEEE association must be supported by wireless network. For better performance and for faster devices (802.11n devices), dual-ratio access points should be deployed. Table1 [3] illustrate the different IEEE standards and throughput.
The only wireless access point will be located in the student lobby on the second floor. The wireless service will be provided by a Cisco Aironet 3700 Series Access Point that is connected to the server in the Student Computer Lab. The device supports the new IEEE 802.11ac standard which provides speed rates of up to 1.3 Gbps. The device will be setup to use WPA2 (Wifi Protected Access) and AES (Advanced Encryption Standards) for security purposes.
Wireless networking hardware requires the use of underlying technology that deals with radio frequencies as well as data transmission. The most widely used standard is 802.11 produced by the Institute of Electrical and Electronic Engineers (IEEE). This is a standard defining all aspects of Radio Frequency Wireless networking
There has been a rapid growth and development in the wireless network filed from the past several years. Till now the main focus of wireless networking is to provide high-speed and long range applications. There are many applications which requires low data rates, long battery life, and in expensive solution. What the market need is a standard which meets all the requirements such as secure data communication, low data rates, long battery life and inexpensive. Many solutions have been proposed to satisfy these needs but they are very expensive. A new standard called ZigBee has developed by the ZigBee Alliance which is based on the IEEE 802.15.4 standard for all wireless applications which satisfies all the needs in less cost.