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Mobile Slotted Aloha
Mobile Slotted Aloha (MS-Aloha) is a wireless network protocol proposed for applications such as vehicle networks. Details Considering the typical taxonomy of MAC protocols, MS-Aloha represents a hybrid solution. It is based on connection-oriented paradigm (hence may fall in the class of channel-based/TDMA protocols); however it is also very reactive to topology changes and does not include any reservations separate from data exchanges. It is classified among the packet-based and collision-free MAC methods. In general, a slotted protocol can be either connectionless or connection-oriented. However, only the latter case represents a true alternative to IEEE 802.11p, by introducing the determinism which carrier sense multiple access with collision avoidance Carrier-sense multiple access with collision avoidance (CSMA/CA) in computer networking, is a network multiple access method in which carrier sensing is used, but nodes attempt to avoid collisions by beginning transmission o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wireless Network
A wireless network is a computer network that uses wireless data connections between network nodes. Wireless networking is a method by which homes, telecommunications networks and business installations avoid the costly process of introducing cables into a building, or as a connection between various equipment locations. Admin telecommunications networks are generally implemented and administered using radio communication. This implementation takes place at the physical level (layer) of the OSI model network structure. Examples of wireless networks include cell phone networks, wireless local area networks (WLANs), wireless sensor networks, satellite communication networks, and terrestrial microwave networks. History Wireless networks The first professional wireless network was developed under the brand ALOHAnet in 1969 at the University of Hawaii and became operational in June 1971. The first commercial wireless network was the WaveLAN product family, developed by NCR i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FI A B C
FI or fi may refer to: Places *Falkland Islands, a British Overseas Territory *Finland (ISO country code FI) **Finnish language (ISO 639 alpha-2 code "fi") ** .fi, top-level domain of Finland * Province of Firenze, Italy Arts, entertainment, and media * ''fi'' (album), a 2005 album by Bibio * ''Fi'' (TV series), a 2017 Turkish Internet TV series * Fi ''(The Legend of Zelda)'', a character in the 2011 video game ''The Legend of Zelda: Skyward Sword'' * Fi, the pitch equivalent to the fourth scale degree raised a half step, in the Solfège music education method * Films Incorporated a defunct educational movie company abbreviated to FI Businesses and organizations *Feminist Initiative (Sweden), a political party *''Finansinspektionen'', the Financial Supervisory Authority in Sweden *Forza Italia, an Italian political party *Fourth International, an international communist organisation *Franciscans International, an NGO at the United Nations *Freudenthal Institute, a research insti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IEEE 802
IEEE 802 is a family of Institute of Electrical and Electronics Engineers (IEEE) standards for local area networks (LAN), personal area network (PAN), and metropolitan area networks (MAN). The IEEE 802 LAN/MAN Standards Committee (LMSC) maintains these standards. The IEEE 802 family of standards has had twenty-four members, numbered 802.1 through 802.24, with a working group of the LMSC devoted to each. However, not all of these working groups are currently active. The IEEE 802 standards are restricted to computer networks carrying variable-size packets, unlike cell relay networks, for example, in which data is transmitted in short, uniformly sized units called cells. Isochronous signal networks, in which data is transmitted as a steady stream of octets, or groups of octets, at regular time intervals, are also outside the scope of the IEEE 802 standards. The number 802 has no significance: it was simply the next number in the sequence that the IEEE used for standards projects. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carrier Sense Multiple Access With Collision Avoidance
Carrier-sense multiple access with collision avoidance (CSMA/CA) in computer networking, is a network multiple access method in which carrier sensing is used, but nodes attempt to avoid collisions by beginning transmission only after the channel is sensed to be "idle". When they do transmit, nodes transmit their packet data in its entirety. It is particularly important for wireless networks, where the alternative with collision detection CSMA/CD, is not possible due to wireless transmitters desensing (turning off) their receivers during packet transmission. CSMA/CA is unreliable due to the hidden node problem. CSMA/CA is a protocol that operates in the data link layer (Layer 2) of the OSI model. Details Collision avoidance is used to improve the performance of the CSMA method by attempting to divide the channel somewhat equally among all transmitting nodes within the collision domain. # Carrier Sense: prior to transmitting, a node first listens to the shared medium (such as l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
