Term
| point to point communication |
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Definition
| a direct connection between two nodes. data transmitted by one node goes directly to the other |
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Term
| point to point wireless connections |
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Definition
| used to link distant buildings or networks as a part of a controller area network |
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Term
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Definition
| connections between many nodes. |
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Term
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Definition
| data goes from a source node to all other nodes on a network. each node receives data and acts on it |
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Term
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Definition
| form of RF networking that's non-directional, uses a single frequency for transmissions, and comes in low and high power versions |
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Term
| low power RF transmissions |
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Definition
| travel over only a short distance, often no more than 70 meters, and are inexpensive and relatively easy to install |
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Term
| High power RF transmissions |
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Definition
| travel over longer distances. However, specially trained technicians are often required to install this type of system. |
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Term
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Definition
| form of radio transmission in which a signal can be sent over more than one frequency |
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Term
| frequency hopping spread spectrum, FHSS |
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Definition
| sends signal on one channel at a time, while the channel changes at fixed predetermined intervals |
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Term
| direct sequence spread spectrum, DSSS |
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Definition
| uses multiple channels simultaneously to send data |
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Term
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Definition
| RF, Infrared, Bluetooth, and microwave |
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Term
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Definition
| wireless transmissions over unbounded media in which signals are sent as pulse of infrared light. transmits at frequencies between 300 GHz and 300000 GHz |
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Term
| infrared wireless networking transmission rates |
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Definition
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Term
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Definition
| discovery and negotiation of data connections are preformed at 9.6 Kbps, and speeds vary from 9.6 to 115.2 Kbps |
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Term
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Definition
| unofficial reference to data transmission speeds between 0.576 and 1.152 Mbps |
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Term
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Definition
| used to describe data transmission rates of 4 Mbps |
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Term
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Definition
| supports data transmission speeds of up to 16 Mbps |
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Term
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Definition
| facilitates short-range wireless communication, between devices such as personal computers, laptops, cell phones, and gaming consoles |
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Term
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Definition
| uses the 2.4 GHz spectrum to communicate at 1 Mbps connection between two devices |
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Term
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Definition
| supports an overall data rate of 2.1 to 3 Mbps, and allows for communicating devices to be as far as 100 feet (30M) apart |
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Term
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Definition
| form of point to point wireless transmissions. sends signals via pulse of electromagnetic energy in the microwave region, at a frequency range of 1Ghz to 300 GHz |
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Term
| WLANs have several common components |
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Definition
| stations(STA),access points(AP),service set, distribution system |
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Term
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Definition
| a device that connects an IEEE 802.11 conformant MAC interface to a wireless medium with an Ethernet like driver interface. contains an adapter card, a PC card, or an embedded device to provide wireless connectivity |
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Term
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Definition
| a device or piece of software that facilitates communication and provides enhanced security to wireless devices, also extends the physical range of a WLAN, functions as a bridge between wireless STAs and the wired backbone |
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Term
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Definition
| defines the way a WLAN is configured |
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Term
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Definition
| is a set of devices with an AP connected to a wired networked and one or more wireless stations or clients |
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Term
| Independent Basic service, IBBS |
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Definition
| is a peer to peer network in which each wireless station acts as both a client and a wireless AP. |
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Term
| extended service set, ESS |
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Definition
| is configuration of multiple BSS used to support user mobility on a wireless network |
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Term
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Definition
| is a wired connection between a BSS and a premise-wide network. this system provides mobile access to available network resources |
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Term
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Definition
| is a device that converts high frequency signals on a cable into electromagnetic waves, and vice versa in wireless communications |
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Term
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Definition
| refer to the ratio between the input and output power of a radio antenna. |
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Term
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Definition
| used in a point to point network to connect one station to another |
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Term
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Definition
| used in multipoint and distributed networks |
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Term
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Definition
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Term
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Definition
| 54mbps, 5GHz, 150feet not compatible with b or g |
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Term
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Definition
| 11mbps, 2.4GHz, indoor transmission range 125 feet |
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Term
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Definition
| 54Mbps, 2.4 GHz, indoor transmission range 125 feet. is backward compatible with 802.11b |
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Term
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Definition
| 150Mbps, 2.4/5GHz, 225 feet, backward compatible with 802.11g |
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Term
| three channels provide optimum performance. in 802.11b and g |
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Definition
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Term
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Definition
| uses one or more APs to connect workstations to the cable backbone. |
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Term
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Definition
| uses peer to peer configuration in which each wireless workstation talks directly to other worstations |
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Term
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Definition
| used in rural areas, uses the used or white spaces in television bands between 54 and 862 MHz |
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Term
| system topology for the 802.22 standard |
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Definition
| a point to point multipoint system containing a base station that links to a number of users within a cell |
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Term
| coverage area for the 802.22 standard |
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Definition
| may extend up to about 60 milles |
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Term
| system capacity for the 802.22 standard |
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Definition
| is similar in performance to DSL services |
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