Going Further With Wireless Network or Wireless Network 802.11
Wireless Network or Wireless Network allows us to communicate without going through a network cable. However, network devices in Wireless / Wireless Network is still a need to communicate with other devices on the network LAN cable. Wireless Network / Wireless Network offers many advantages that appear (ie no cable) and also some other things that we may never consider. The most obvious is its practical nature - easy to carry. You can even browse your side of the swimming pool, on the porch, in your gazebo, pavilion at you (wah wrote soap operas like home ...?), If there is a Wireless Network / Wireless Network in your home. Or even with your laptop, you can browse the internet at the café, at the airport, and many more places-2 which provides hot-spot free Internet service for your convenience.
Wireless communication going on-where-2 around us, such as a cordless home phone (cordless) that enables the communication between your cordless phone with a base unit of the phone is that it uses radio waves. Similar also happened between your GSM cellular phone that also uses radio waves to communicate with the network of towers surrounding the transmitter and receiver. Even your TV remote control also demonstrated the basic wireless communication by using infrared waves.
Communications Wireless Networking / Wireless Network uses a form of electromagnetic energy that propagates through space. Energy spread through the air at different wavelengths. Depending on the length of the wave itself, the wave energy can appear visible or invisible. Basically menmebus electromagnetic energy through the material, but the material is not uncommon in some degree reflect the energy and absorb some energy as well. Some wavelengths of energy needed for a communication to be able to happen if it is on a line with each other to see because these wavelengths can not penetrate through the material well. For example, a television remote control you are using infrared waves generally require communication in a straight line, not obstructed.
Unlike infrared waves, radio waves used on other cellular phones do not require a line of communication with the surrounding BTS Tower, but also affect the thickness of the barrier material. In a cellular signal reception area is less, sometimes we would find a rather high or even in addition to the building to get a good signal - because in reality part of the building to absorb some energy and some are reflecting.
Wireless Network / Wireless Network become so very popular for installation in homes or at work-2. The advantage of wireless communication is less need for cabling in a network. The drawback is in terms of speed is usually lower than the speed of a wired network, a security risk because everyone around the network will be trying to eavesdrop your communications, and also require extra technology to be able to get a good signal in the area that can be reached as MIMO technology has.
Topology Wireless Network / Wireless Network
In computer networking, the term generally refers to the pattern topology cable used to connect computers-2. Wireless networks do not use wires, but still has a topology, which defines how wireless devices interact in the physical layer of the OSI model. Phyisical layer, Wireless Network / Wireless Network 802.11 using the spread spectrum communication sequentially at 2.4 GHz frequency, and device-2 are communicating with one another using two basic topologies: ad hoc and infrastructure.
Ad Hoc Networks
An Ad Hoc network consists of two or more wireless devices that communicate directly with one another. The signals generated by the interface adapter Wireless Network / Wireless Network is an Omni directional reach out to the range-2 is influenced by environmental factors, and also the nature of the devices involved. This range is referred to as a basic service area (BSA - basic service area). If two devices berdelatan in range of each other, they can communicate with each other, and soon formed a 2 node network. Devices in the same basic service in the area is called a basic service set (BSS - basic service set).Wireless Ad Hoc Networks
Wireless Ad Hoc Networks
If there is another wireless device closer in the range of BSA could also participate in the network. However, an ad hoc network is not Transitive, meaning if two devices A and B communicate with each other in a range of devices, then if there is a device in the range of devices C B but not in the range of A, then C devices can not communicate with device A.
Network infrastructure
An infrastructure network using a wireless device called an Access Point (AP) as a bridge between wireless devices and wired network standard. An Access Point (which contains a wireless transceiver compliant) is a unit that connects to an Ethernet network (or any other cable network) by a cable. If there are other wireless devices in the wireless Access Point's range so he could communicate with each other cable networks, like those connected to the cable. The function of the Access Point is like a transparent bridge, which effectively extend the network cable to include wireless devices therein.
In Infrastructure network, the wireless devices communicate with the access point; hell do not communicate with each other directly. So even if both are a range of wireless devices they still have to use the Access Point to be able to communicate with each other.
Wireless Network / Wireless Network IEEE 802.11
The most popular types of Network Wireless / Wireless Network today is based on the 802.11 standard, known informally as the Wi-Fi network. 802.11 specification defines how two or more devices can each send and receive data.
Communications Wireless Networking / Wireless Network is a shared LAN - LAN share one same path because there is only one station alone which can effectively transmit data at a time. Standard 802.11 is effective area could reach as far as 100 meters. However, with some special technology signals can also reach a wider area to 300-400 meters.
Wireless Network / Wireless Network is generally composed of one or several computers equipped adapter Wireless Network / Wireless Network 802.11, plus one or more wireless access point (WAP). WAP is a function of bridging or redirect traffic from the Wireless Network / Wireless Network LAN cable to the network and vice versa. Picture below is a diagram of computer communication with wireless adapters and access points.
computers with wireless network
The access point is equipped with two antennas, which are components of wireless is used to transmit and receive signals-wireless radio. While the two laptops are also equipped with a wifi adapter that also has an internal antenna that emits radio waves.
Note that 802.11 is no longer using the IEEE 802.2 LLC or address format defined 802.3; 802.11 MAC uses a different header from 802.3. So to pass traffic, the access point simply swap header 802.11 with 802.3 header and instead use the same MAC address. Directing traffic from the access point Wireless Networking / Wireless Network to the cable network.
Standard wireless 802.11
1. Standard 802.11b wireless-B
transmit at rate speeds up to 11 Mbps using the 2.4 GHz frequency band, sharing a network with a maximum output usually in real pegged surrounding 7 Mbps.
802.11b has a good range but can be influenced by a radio signal interference. Dirumahan widely used for network and security side many weaknesses.
2. 802.11a wireless standard,
operates in the 5 GHz frequency band with a maximum transmission up to 54 Mbps.
It is suitable and good on applications and video conferencing.
Working with a good deal on a dense population
Can not operate on standard 802.11b / g
3. Standard wireless-G 802.11g
Development of 802.11b cling to rate speeds up to 54 Mbps
Shorter range (several types of wireless-G devices boosted with technology that can cover a larger area such as MIMO technology)
4. Standard wireless-N 802.11n is still a draft version 2.0
Can reach speeds of up to 270Mbps with certain conditions
With MIMO technology can cover an area up to 300-400 meters.
Wireless Network or Wireless Network allows us to communicate without going through a network cable. However, network devices in Wireless / Wireless Network is still a need to communicate with other devices on the network LAN cable. Wireless Network / Wireless Network offers many advantages that appear (ie no cable) and also some other things that we may never consider. The most obvious is its practical nature - easy to carry. You can even browse your side of the swimming pool, on the porch, in your gazebo, pavilion at you (wah wrote soap operas like home ...?), If there is a Wireless Network / Wireless Network in your home. Or even with your laptop, you can browse the internet at the café, at the airport, and many more places-2 which provides hot-spot free Internet service for your convenience.
Wireless communication going on-where-2 around us, such as a cordless home phone (cordless) that enables the communication between your cordless phone with a base unit of the phone is that it uses radio waves. Similar also happened between your GSM cellular phone that also uses radio waves to communicate with the network of towers surrounding the transmitter and receiver. Even your TV remote control also demonstrated the basic wireless communication by using infrared waves.
Communications Wireless Networking / Wireless Network uses a form of electromagnetic energy that propagates through space. Energy spread through the air at different wavelengths. Depending on the length of the wave itself, the wave energy can appear visible or invisible. Basically menmebus electromagnetic energy through the material, but the material is not uncommon in some degree reflect the energy and absorb some energy as well. Some wavelengths of energy needed for a communication to be able to happen if it is on a line with each other to see because these wavelengths can not penetrate through the material well. For example, a television remote control you are using infrared waves generally require communication in a straight line, not obstructed.
Unlike infrared waves, radio waves used on other cellular phones do not require a line of communication with the surrounding BTS Tower, but also affect the thickness of the barrier material. In a cellular signal reception area is less, sometimes we would find a rather high or even in addition to the building to get a good signal - because in reality part of the building to absorb some energy and some are reflecting.
Wireless Network / Wireless Network become so very popular for installation in homes or at work-2. The advantage of wireless communication is less need for cabling in a network. The drawback is in terms of speed is usually lower than the speed of a wired network, a security risk because everyone around the network will be trying to eavesdrop your communications, and also require extra technology to be able to get a good signal in the area that can be reached as MIMO technology has.
Topology Wireless Network / Wireless Network
In computer networking, the term generally refers to the pattern topology cable used to connect computers-2. Wireless networks do not use wires, but still has a topology, which defines how wireless devices interact in the physical layer of the OSI model. Phyisical layer, Wireless Network / Wireless Network 802.11 using the spread spectrum communication sequentially at 2.4 GHz frequency, and device-2 are communicating with one another using two basic topologies: ad hoc and infrastructure.
Ad Hoc Networks
An Ad Hoc network consists of two or more wireless devices that communicate directly with one another. The signals generated by the interface adapter Wireless Network / Wireless Network is an Omni directional reach out to the range-2 is influenced by environmental factors, and also the nature of the devices involved. This range is referred to as a basic service area (BSA - basic service area). If two devices berdelatan in range of each other, they can communicate with each other, and soon formed a 2 node network. Devices in the same basic service in the area is called a basic service set (BSS - basic service set).Wireless Ad Hoc Networks
Wireless Ad Hoc Networks
If there is another wireless device closer in the range of BSA could also participate in the network. However, an ad hoc network is not Transitive, meaning if two devices A and B communicate with each other in a range of devices, then if there is a device in the range of devices C B but not in the range of A, then C devices can not communicate with device A.
Network infrastructure
An infrastructure network using a wireless device called an Access Point (AP) as a bridge between wireless devices and wired network standard. An Access Point (which contains a wireless transceiver compliant) is a unit that connects to an Ethernet network (or any other cable network) by a cable. If there are other wireless devices in the wireless Access Point's range so he could communicate with each other cable networks, like those connected to the cable. The function of the Access Point is like a transparent bridge, which effectively extend the network cable to include wireless devices therein.
In Infrastructure network, the wireless devices communicate with the access point; hell do not communicate with each other directly. So even if both are a range of wireless devices they still have to use the Access Point to be able to communicate with each other.
Wireless Network / Wireless Network IEEE 802.11
The most popular types of Network Wireless / Wireless Network today is based on the 802.11 standard, known informally as the Wi-Fi network. 802.11 specification defines how two or more devices can each send and receive data.
Communications Wireless Networking / Wireless Network is a shared LAN - LAN share one same path because there is only one station alone which can effectively transmit data at a time. Standard 802.11 is effective area could reach as far as 100 meters. However, with some special technology signals can also reach a wider area to 300-400 meters.
Wireless Network / Wireless Network is generally composed of one or several computers equipped adapter Wireless Network / Wireless Network 802.11, plus one or more wireless access point (WAP). WAP is a function of bridging or redirect traffic from the Wireless Network / Wireless Network LAN cable to the network and vice versa. Picture below is a diagram of computer communication with wireless adapters and access points.
computers with wireless network
The access point is equipped with two antennas, which are components of wireless is used to transmit and receive signals-wireless radio. While the two laptops are also equipped with a wifi adapter that also has an internal antenna that emits radio waves.
Note that 802.11 is no longer using the IEEE 802.2 LLC or address format defined 802.3; 802.11 MAC uses a different header from 802.3. So to pass traffic, the access point simply swap header 802.11 with 802.3 header and instead use the same MAC address. Directing traffic from the access point Wireless Networking / Wireless Network to the cable network.
Standard wireless 802.11
1. Standard 802.11b wireless-B
transmit at rate speeds up to 11 Mbps using the 2.4 GHz frequency band, sharing a network with a maximum output usually in real pegged surrounding 7 Mbps.
802.11b has a good range but can be influenced by a radio signal interference. Dirumahan widely used for network and security side many weaknesses.
2. 802.11a wireless standard,
operates in the 5 GHz frequency band with a maximum transmission up to 54 Mbps.
It is suitable and good on applications and video conferencing.
Working with a good deal on a dense population
Can not operate on standard 802.11b / g
3. Standard wireless-G 802.11g
Development of 802.11b cling to rate speeds up to 54 Mbps
Shorter range (several types of wireless-G devices boosted with technology that can cover a larger area such as MIMO technology)
4. Standard wireless-N 802.11n is still a draft version 2.0
Can reach speeds of up to 270Mbps with certain conditions
With MIMO technology can cover an area up to 300-400 meters.
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