Wireless Network

If you were implementing a low-cost wireless network that had to cover a very large area and support only a few users, the use of 802.11g technology would be a very good option. 11g technology operates at the 2.4Ghz range which allows for access points to provide signals up to 300 feet. The 2.4GHz signal also has lower rates of signal loss from obstructions. This means that a fewer number of AP's would need to be purchased for complete are coverage. Also, by providing throughput of up 54Mbps it could easily support bandwidth needs of multiple users who require minimal bandwidth. This would be the case of a warehouse or large department store where the applications would not place major demands on network resources.

In 2002 and 2003, WLAN products supporting a newer standard called 802.11g emerged on the market. 802.11g attempts to combine the best of both 802.11a and 802.11b. 802.11g supports bandwidth up to 54 Mbps, and it uses the 2.4 GHz frequency for greater range. 802.11g is backwards compatible with 802.11b, meaning that 802.11g access points will work with 802.11b wireless network adapters and vice

To start, a wireless network or Wi-Fi “is a technology that allows electronic devices to exchange data or connect to the Internet through wireless communications using 2.4 GHz signals or 5 GHz signals. Wi-Fi is also used to synonymously to indicate a wireless local area network (WLAN) based on the IEEE 802.11 protocol” (Ghosh, Sinha B, K, 2016, p. 4). Mobile networking and Wi-Fi are key factors in society. Wi-Fi was invented and first released in 1997. Becki Wood wrote an article titled “History of WiFi” in the article she says “WiFi has played an integral role in keeping us connected at home and in public. We’ve come to expect a standard degree of connectivity wherever we go, and regularly rely on

Wireless is a technology that transmits signal without using cables as the medium to communicate from one end to other(s) end. Communications via wireless can be anything from radio broadcasting, SOS signal from a ship at sea, or day-to-day Wi-Fi that we use to connect to the Internet. Actually wireless technology is a technology that already been in development for quite a long time, it developments already begun since late 19th century. Here is the timeline of the development of wireless technology:

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) transmission technique. At the MAC sublayer of the Data Link layer, 802.11b uses the carrier sense multiple access with collision avoidance (CSMA/CA) media access control (MAC) protocol” (35). A wireless station with a frame to transmit first listens on the wireless medium to determine if another station is currently transmitting (this is the carrier sense portion of CSMA/CA). If the medium is being used, the wireless station calculates a random backoff delay. Only after the random backoff delay elapses can the wireless station again listen for a transmitting station. By instituting a random backoff delay, multiple stations that are waiting to transmit do not end up trying to transmit at the same time (this is the collision avoidance portion of CSMA/CA).

Wireless communication has become an indispensable tool in the world today. Most of the world is connected and as a result, we have been able to carry out multiple tasks in a short time leaving us spare time to engage in other activities that demand our attention. Wireless networks have gone through several developmental phases to offer the fast and efficient services that we have presently. In this paper, I discuss the various classifications of wireless networks, going into details about their unique characteristics and why most people and organizations opt for them instead of their wired counterparts.

Wireless technology is widely used throughout different countries and governments, and is one of the most fast-growing and needed technologies on the market today. While in the past it has been looked at as something that is not needed, now is necessary. Most companies have main business functions that occur outside the main office, and taking a laptop computer into the field helps the need to complete services particular to that business. Globally, the wireless field is expanding and both people and business are beginning to heavily depend on its services all over the world. Wireless technology has also become more popular in the field of education and is being taken in by not only university

802.11ac only works in the 5GHz band, which means that any equipment want to work in 802.11ac must support 5GHz frequency band. Furthermore, 802.11ac’s chipset also supports 2.4GHz band, to supports 802.11a/b/g/n WLAN and other previous standard, to provide backward compatibility.

802.11ac is a new generation of network protocol. Because it runs in 5G Wi-Fi, this refers to the fifth generation of Wi-Fi transmission technology, and runs 5Ghz radio wave bands. Here 's a common problem 802.11ac and 5G Wi-Fi was a lot of confusion in the

IEEE 802.11ah is a light version. Its applicable for low-energy. For Laptop, smart mobile, smart Television and other digital devices using IEEE 802.11.AH. The basic 802.11ah MAC layer features include: Synchronization Frame, Efficient Bidirectional Packet Exchange, Short Mac Frame, Null Data Packet, Increase Sleep Time.2.3.

Wi-Fi - a trademark of Wi-Fi Alliance for wireless networks based on the standard IEEE 802.11. The acronym Wi-Fi (from the Wireless Fidelity, which can be literally translated as "the quality of the wireless") is currently developing as a family of standards for the transmission of digital data radio streams. It is still often hears that the wireless network is not secure compared to wired solutions. At the present stage of Wi-Fi technology‘s development that is not true. Simply security needs to be addressed (to design and maintain), as in the case of a wired network.

Wi-Fi Internet access is fast gaining popularity as we are entering the 'unplugged ' phase of communication technology. This journey towards an unplugged world began with the first telegraph and first radio. Since then, telecommunication technology has not looked back and has shown its versatility by contributing to every field of technology. Wi-Fi has developed from synergy of wireless communication, computer networking and Internet technology. It has radically changed the way we connect and communicate.Wi-Fi (Wireless Fidelity) is a generic term that refers to the IEEE 802.11 communications standard for Wireless Local Area Networks (WLANs). Wi-Fi works on three modes namely Ad hoc, Infrastructure and Extended modes.Ad hoc network is P2P mode. Ad hoc does not use any intermediary device such as Access Point. Infrastructure and Extended modes use Access Point as interface between wireless clients.To create wireless networks with a range of about one hundred meters,802.11 technologyWith proper planning and selection antennas, same equipment can be used to make point-to-multipoint links and point-to-point links of several hundred meters.In this projectto enhance the coverage area of an access point to several hundred

WiMax (worldwide Interoperability for Microwave Access) is the recently approved IEEE 802.16 wireless metropolitan area network (MAN) standard for wireless access. WiMax is the real wireless architecture by which the wireless access range can extended to 49.6Kms compared with Wi-Fi 91mts and Bluetooth’s 9mts. WiMax 802.16

➢ The 802.11b and 802.11g flavours of Wi-Fi use the 2.4 GHz spectrum, which is crowded with other devices such as Bluetooth, microwave ovens, cordless phones, or video sender devices, among many others. This may cause degradation in performance. Other devices which use microwave frequencies such as certain types of cell phones can also cause degradation in performance.

Wireless system was first appeared in late 1970 and established in 1980. There are different generations of wireless technologies such as First Generation, Second Generation, Second plus Generation, Third Generation, Fourth Generation and still boosting up till Fifth Generation. These different generations have different features and each upcoming generation has provided best services as compare to the previous generation as per demand of users.