What Is Used Wifi?
Wi-Fi Is a family of wireless network protocols based on the IEEE 802.11 family of standards, which are commonly used for local area networking of devices and Internet access, allowing nearby digital devices to exchange data by radio waves. These are the most widely used computer networks in the world, used globally in home and small office networks to link devices together and to a wireless router to connect them to the Internet, and in wireless access points in public places like coffee shops, hotels, libraries, and airports to provide visitors with Internet connectivity for their mobile devices.
Wi-Fi uses multiple parts of the IEEE 802 protocol family and is designed to work seamlessly with its wired sibling, Ethernet. Compatible devices can network through wireless access points with each other as well as with wired devices and the Internet. Different versions of Wi-Fi are specified by various IEEE 802.11 protocol standards, with different radio technologies determining radio bands, maximum ranges, and speeds that may be achieved. Wi-Fi most commonly uses the 2.4 gigahertz (120 mm) UHF and 5 gigahertz (60 mm) SHF radio bands; these bands are subdivided into multiple channels. Channels can be shared between networks, but, within range, only one transmitter can transmit on a channel at a time.
Wi-Fi’s radio bands have relatively high absorption and work best for line-of-sight use. Many common obstructions such as walls, pillars, home appliances, etc. may greatly reduce range, but this also helps minimize interference between different networks in crowded environments. An access point range is about 20 m (66 ft) indoors, while some access points claim up to a 150 m (490 ft) range outdoors. Hotspot coverage can be as small as a single room with walls that block radio waves or as large as many square kilometres using many overlapping access points with roaming permitted between them. Over time, the speed and spectral efficiency of Wi-Fi have increased.
What Are Types Of Wi-Fi?
In addition to a LAN, there are a few other types of common wireless networks: personal-area network (PAN), metropolitan-area network (MAN), and wide-area network (WAN).
Advantages Of Wireless Networking?
- Increased efficiency. Improved data communications lead to faster transfer of information within businesses and between partners and customers.
- Access and availability.
- Flexibility.
- Cost savings.
- New opportunities.
- Security.
- Installation problems.
- Coverage.
Used Wifi For Sale In Ghana:
Vodafone Wi-Fi
Huawei
Used
GH₵ 400.00
ZTE Mf927u LTE MTN Universal Wifi Rechargable
ZTE
GH₵ 850.00
Huawei E8372 4G LTE Wifi USB, Modem Wifi Dongle (Wingle)
Huawei
GH₵ 220.00
D-Link 4G LTE Mobile Router
D-Link
GH₵ 499.00
BOLT 4G LTE Pocket Mobile Wifi Router For All Networks
Huawei
GH₵ 490.00
D-Link DWR-930M Universal 4G LTE Mobile Mifi Router
D-Link
ZTE Mf927u LTE MTN Universal Wifi Rechargable
ZTE
GH₵ 850.00
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