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In telecommunications and computer networks, a channel access method or multiple access method allows several terminals connected to the same multi-point physical medium to transmit over it and to share its capacity. Examples of shared physical media are wireless networks, bus networks, ring...
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36 Channel access method topics matching:
Filter this Collection| x name | x image | x Parent method | x Child method | x article |
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| x Frequency-division multiple access | Wavelength division multiple access |
Frequency Division Multiple Access or FDMA is a channel access method used in multiple-access protocols as a channelization protocol. FDMA gives users an individual allocation of one or several frequency bands, or channels. Multiple Access systems...
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| OFDMA | ||||
| Single Carrier FDMA | ||||
| x OFDMA |
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Frequency-division multiple access |
Orthogonal Frequency-Division Multiple Access (OFDMA) is a multi-user version of the popular Orthogonal frequency-division multiplexing (OFDM) digital modulation scheme. Multiple access is achieved in OFDMA by assigning subsets of subcarriers to...
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| x Wavelength division multiple access | Frequency-division multiple access |
Wavelength-Division Multiple Access (WDMA) is a channel access method based on wavelength-division multiplexing.
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| x Single Carrier FDMA |
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Frequency-division multiple access |
Single-carrier FDMA (SC-FDMA) is frequency-division multiple access scheme. It is a multi-user version of Single-carrier frequency-domain-equalization (SC-FDE) modulation scheme. SC-FDE can be viewed as a linearly precoded OFDM scheme, and SC-FDMA...
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| x Time division multiple access |
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Self-Organized Time Division Multiple Access |
Time division multiple access (TDMA) is a channel access method for shared medium networks. It allows several users to share the same frequency channel by dividing the signal into different time slots. The users transmit in rapid succession, one...
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| Multi-Frequency Time Division Multiple Access | ||||
| x Multi-Frequency Time Division Multiple Access | Time division multiple access | |||
| x Self-Organized Time Division Multiple Access | Time division multiple access |
Self-Organized Time Division Multiple Access (STDMA) is a channel access method an invention by Håkan Lans based on time-division multiplexing.
The term Self-organising describes that VHF Data Link (VDL) Mode 4 uses a protocol, VDL Mode 4 Interface...
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| x Code division multiple access |
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Direct-sequence code division multiple access |
Code division multiple access (CDMA) is a channel access method utilized by various radio communication technologies. It should not be confused with the mobile phone standards called cdmaOne and CDMA2000 (which are often referred to as simply "CDMA"...
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| Frequency hopping code division multiple access | ||||
| Orthogonal frequency hopping code division multiple access | ||||
| Multi-carrier code division multiple access | ||||
| x Orthogonal frequency hopping code division multiple access | Code division multiple access | |||
| x Frequency hopping code division multiple access | Code division multiple access | |||
| x Multi-carrier code division multiple access | Code division multiple access |
Multi-Carrier Code Division Multiple Access (MC-CDMA) is a multiple access scheme used in OFDM-based telecommunication systems, allowing the system to support multiple users at the same time.
MC-CDMA spreads each user symbol in the frequency domain....
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| x Direct-sequence code division multiple access | Code division multiple access |
Direct-Sequence Code Division Multiple Access (DS-CDMA) is a multiple access scheme based on direct-sequence spread spectrum, by spreading the signals from/to different users with different codes. It is the most widely used type of CDMA. Click here...
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| x Space-division multiple access | IBurst |
Space-Division Multiple Access (SDMA) is a channel access method based on creating parallel spatial pipes next to higher capacity pipes through spatial multiplexing and/or diversity, by which it is able to offer superior performance in radio...
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| x Resource reservation (scheduled) packet-mode protocols | Packet mode multiple access | Dynamic time division multiple access | ||
| Reservation ALOHA | ||||
| Packet reservation multiple access | ||||
| x Packet mode multiple access | Contention | |||
| Token passing | ||||
| Polling | ||||
| Resource reservation (scheduled) packet-mode protocols | ||||
| x Polling | Packet mode multiple access |
Polling, or polled operation, in computer science, refers to actively sampling the status of an external device by a client program as a synchronous activity. Polling is most often used in terms of input/output (I/O), and is also referred to as...
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| x Contention | Packet mode multiple access | Carrier Sense Multiple Access |
In packet mode communication networks, contention is a media access method that is used to share a broadcast medium.
One method to handle collisions in a contention based system is to optimize collision detection and subsequent recovery. A collision...
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| Carrier sense multiple access with collision avoidance | ||||
| Aloha | ||||
| CSMA/CARP | ||||
| Multiple Access with Collision Avoidance for Wireless | ||||
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| x Token passing | Packet mode multiple access | Token bus |
In telecommunication, token passing is a channel access method where a signal called a token is passed between nodes that authorizes the node to communicate. The most well-known examples are token ring and ARCNET.
Token passing schemes provide round...
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| IBM token ring | ||||
| x Time division duplex |
Time-Division Duplex (TDD) is the application of time-division multiplexing to separate outward and return signals. It emulates full duplex communication over a half duplex communication link. Time division duplex has a strong advantage in the case...
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| x Frequency division duplex | ||||
| x Carrier Sense Multiple Access | Contention |
Carrier Sense Multiple Access (CSMA) is a probabilistic Media Access Control (MAC) protocol in which a node verifies the absence of other traffic before transmitting on a shared transmission medium, such as an electrical bus, or a band of the...
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| x Carrier sense multiple access with collision avoidance |
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Contention |
In computer networking, CSMA/CA belongs to a class of protocols called multiple access methods. CSMA/CA stands for: Carrier Sense Multiple Access With Collision Avoidance. In CSMA, a station wishing to transmit has to first listen to the channel for...
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| x Aloha | Contention | |||
| x CSMA/CARP | Contention |
In computer networking, Carrier Sense Multiple Access With Collision Avoidance and Resolution using Priorities (CSMA/CARP) is Channel access method. CSMA/CARP is similar in nature to the CSMA/CD Channel access method used in Ethernet networks, but...
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| x Multiple Access with Collision Avoidance for Wireless |
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Contention |
Multiple Access with Collision Avoidance for Wireless (MACAW) is a slotted Medium Access Control (MAC) protocol widely used in Ad-hoc networks. Furthermore, it is foundation of many other MAC protocols used in Wireless Sensor Networks (WSN). The...
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| x Carrier sense multiple access with collision detection |
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Contention |
Carrier Sense Multiple Access With Collision Detection (CSMA/CD), in computer networking, is a network access method in which
CSMA/CD is a modification of pure Carrier Sense Multiple Access (CSMA).
Collision detection is used to improve CSMA...
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| x Slotted Aloha | Contention | |||
| x Multiple Access with Collision Avoidance | Contention |
Multiple Access with Collision Avoidance (MACA) is a slotted media access control protocol used in wireless LAN data transmission to avoid collisions caused by the hidden station problem and to simplify exposed station problem.
The basic idea of...
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| x Token bus |
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Token passing |
Token bus is a network implementing the token ring protocol over a "virtual ring" on a coaxial cable. A token is passed around the network nodes and only the node possessing the token may transmit. If a node doesn't have anything to send, the token...
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| x IBM token ring |
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Token passing |
Token ring local area network (LAN) technology is a local area network protocol which resides at the data link layer (DLL) of the OSI model. It uses a special three-byte frame called a token that travels around the ring. Token ring frames travel...
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| x Dynamic time division multiple access | Resource reservation (scheduled) packet-mode protocols | |||
| x Reservation ALOHA | Resource reservation (scheduled) packet-mode protocols |
Reservation ALOHA, or R-ALOHA, is a channel access method for wireless transmission which allows uncoordinated users to share a common transmission resource. Reservation ALOHA (and its parent scheme, Slotted ALOHA) is a schema or rule set for the...
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| x Packet reservation multiple access | Resource reservation (scheduled) packet-mode protocols | |||
| x Polarisation division multiple access |
Polarization division multiple access (PDMA) is a channel access method used in some cellular networks. Separate antennas are used in this type, each with different polarization and followed by separate receivers, allowing simultaneous regional...
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| x Pulse-address multiple access |
In telecommunications, pulse-address multiple access (PAMA) is a channel access method that enables the ability of a communication satellite to receive signals from several Earth terminals simultaneously and to amplify, translate, and relay the...
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| x IBurst |
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Space-division multiple access |
iBurst (or HC-SDMA, High Capacity Spatial Division Multiple Access) is a wireless broadband technology developed by ArrayComm. It optimizes the use of its bandwidth with the help of smart antennas. Kyocera is the leading manufacturer of iBurst...
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