Wireless Fidelity, or the more commonly known as Wi-Fi, which has the meaning set of standard equipment for wireless local networks (Wireless Local Area Networks - WLANs) The IEEE 802.11 specification is based on AT. The latest standards of specifications 802.11a or b, such as 802.16 g, is currently in preparation, the latest specification offers a wide variety of improvement ranging from coverage even further, until the transfer speed.
Wi-Fi was originally intended for the use of wireless devices and Local Area Network (Local Area Network / LAN), but now more widely used to access the Internet. This allows someone who has a computer with a wireless card (wireless card) or Personal Digital Assistants (PDAs) to connect to the internet using access point (or known as hotspots) nearby.
Operational Technically, Wi-Fi is one variant of communications and information technology that works on the network and the WLAN (wireless local area network). In other words, the Wi-Fi is a certification trademark given to telecommunications equipment manufacturers (Internet) working in WLAN networks and interoperates capacity already meets the required quality.
Because the device with the technical standard 802.11b WLAN devices intended for use in the 2.4 GHz frequency or frequencies, commonly called ISM (Industrial, Scientific and Medical). As for the technical standards 802.11a and 802.16 WMAN or destined for the device is also called Wi-Max, who works in the vicinity of 5 GHz frequency band.High public interest - particularly among the Internet community - using Wi-Fi technology because at least two factors. First, the ease of access. This means that users in one area can access the Internet simultaneously without having to be bothered with cables.Consequently, users who want to do surfing or browsing news and information on the Internet, simply bring the PDA (pocket digital assistance) or Wi-Fi enabled laptop into a place where there is access point or hotspot hotspot.Menjamurnya in those places - which was built by telecommunication operators, Internet service providers and even individual people - triggered the second factor, namely because construction costs are relatively cheap or only around 300 dollars U.S..
Increasing the quantity of Internet users based Wi-Fi technology is increasingly implicated in various parts of the world, has encouraged Internet service providers (ISPs) to build hotspots in major cities of the world.
Ad-Hoc
This connection mode is a mode where multiple computers are connected directly, or better known as Peer-to-Peer. Advantages, cheaper and more practical when connected only 2 or 3 computers, without having to buy an access point
Infrastructure
Using the Access Point that serves as a regulator of the data traffic, allowing many clients to connect to each other via a network (Network).
In Indonesia alone, the use of Internet-based Wi-Fi already implicated in several major cities. The same phenomenon seen in many cafes where to eat, or facilities - general facilities available. Nevertheless, the government should address the phenomenon wisely and carefully. The reason is, technologically frequency bands - both 2.4 GHz and 5 GHz - which became operational container technology, Wi-Fi is not free from keterbatasan.Pasalnya, users in a new area can take advantage of wireless Internet system is optimally, when all devices used in the area using a uniform transmit power and limited.
If the preconditions are not honored, you can bet will happen is not only harmful interference between devices of Internet users, but also with other telecommunications systems devices. Another limitation of this second wireless frequency bands (particularly 2.4 GHz) is due also used for ISM (industrial, science and medical). Consequently, the use of radio communications or other telecommunication device that works in the frequency band it should be ready to accept the interference from the ISM, as contained in S5.150 of the Radio Regulation.Dalam recommendation ITU-R SM.1056, also informed the device characteristics of the ISM which basically aims to prevent occurrence of interference, both between devices with the ISM as well as telecommunication devices assert the same lainnnya.Rekomendasi that every member of the ITU-free establish administrative requirements and rules of law relating to mandatory power restrictions.
Recognizing the limitations and the impact that may arise from the use of both of the wireless frequency bands, various countries and impose regulations that limit the transmission power of the devices used.
Wi-Fi was originally intended for the use of wireless devices and Local Area Network (Local Area Network / LAN), but now more widely used to access the Internet. This allows someone who has a computer with a wireless card (wireless card) or Personal Digital Assistants (PDAs) to connect to the internet using access point (or known as hotspots) nearby.
Operational Technically, Wi-Fi is one variant of communications and information technology that works on the network and the WLAN (wireless local area network). In other words, the Wi-Fi is a certification trademark given to telecommunications equipment manufacturers (Internet) working in WLAN networks and interoperates capacity already meets the required quality.
Because the device with the technical standard 802.11b WLAN devices intended for use in the 2.4 GHz frequency or frequencies, commonly called ISM (Industrial, Scientific and Medical). As for the technical standards 802.11a and 802.16 WMAN or destined for the device is also called Wi-Max, who works in the vicinity of 5 GHz frequency band.High public interest - particularly among the Internet community - using Wi-Fi technology because at least two factors. First, the ease of access. This means that users in one area can access the Internet simultaneously without having to be bothered with cables.Consequently, users who want to do surfing or browsing news and information on the Internet, simply bring the PDA (pocket digital assistance) or Wi-Fi enabled laptop into a place where there is access point or hotspot hotspot.Menjamurnya in those places - which was built by telecommunication operators, Internet service providers and even individual people - triggered the second factor, namely because construction costs are relatively cheap or only around 300 dollars U.S..
Increasing the quantity of Internet users based Wi-Fi technology is increasingly implicated in various parts of the world, has encouraged Internet service providers (ISPs) to build hotspots in major cities of the world.
Ad-Hoc
This connection mode is a mode where multiple computers are connected directly, or better known as Peer-to-Peer. Advantages, cheaper and more practical when connected only 2 or 3 computers, without having to buy an access point
Infrastructure
Using the Access Point that serves as a regulator of the data traffic, allowing many clients to connect to each other via a network (Network).
In Indonesia alone, the use of Internet-based Wi-Fi already implicated in several major cities. The same phenomenon seen in many cafes where to eat, or facilities - general facilities available. Nevertheless, the government should address the phenomenon wisely and carefully. The reason is, technologically frequency bands - both 2.4 GHz and 5 GHz - which became operational container technology, Wi-Fi is not free from keterbatasan.Pasalnya, users in a new area can take advantage of wireless Internet system is optimally, when all devices used in the area using a uniform transmit power and limited.
If the preconditions are not honored, you can bet will happen is not only harmful interference between devices of Internet users, but also with other telecommunications systems devices. Another limitation of this second wireless frequency bands (particularly 2.4 GHz) is due also used for ISM (industrial, science and medical). Consequently, the use of radio communications or other telecommunication device that works in the frequency band it should be ready to accept the interference from the ISM, as contained in S5.150 of the Radio Regulation.Dalam recommendation ITU-R SM.1056, also informed the device characteristics of the ISM which basically aims to prevent occurrence of interference, both between devices with the ISM as well as telecommunication devices assert the same lainnnya.Rekomendasi that every member of the ITU-free establish administrative requirements and rules of law relating to mandatory power restrictions.
Recognizing the limitations and the impact that may arise from the use of both of the wireless frequency bands, various countries and impose regulations that limit the transmission power of the devices used.
