Code-expanded radio access protocol for machine-to-machine communications

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34 Citationer (Scopus)

Resumé

The random access methods used for support of machine-to-machine, also referred to as Machine-Type Communications, in current cellular standards are derivatives of traditional framed slotted ALOHA and therefore do not support high user loads efficiently. We propose an approach that is motivated by the random access method employed in LTE, which significantly increases the amount of contention resources without increasing the system resources, such as contention subframes and preambles. This is accomplished by a logical, rather than physical, extension of the access method in which the available system resources are interpreted in a novel manner. Specifically, in the proposed scheme, users perform random access by transmitting orthogonal preambles in multiple random access subframes, in this way creating access codewords that are used for contention. We show that, for the same number of random access subframes and orthogonal preambles, the amount of available contention resources is drastically increased, enabling the massive support of Machine-Type Communication users that is beyond the reach of current systems.
OriginalsprogEngelsk
TidsskriftTransactions on Emerging Telecommunications Technologies
Vol/bind24
Udgave nummer4
Sider (fra-til)355-365
Antal sider11
ISSN2161-3915
DOI
StatusUdgivet - jun. 2013
BegivenhedIEEE Globecom 2012: Globecom Communications Conference - Disneyland Hotel, Anaheim, California, USA
Varighed: 3 dec. 20127 dec. 2012

Konference

KonferenceIEEE Globecom 2012
LokationDisneyland Hotel
LandUSA
ByAnaheim, California
Periode03/12/201207/12/2012

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Communication
Derivatives
Machine-to-machine communication

Citer dette

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title = "Code-expanded radio access protocol for machine-to-machine communications",
abstract = "The random access methods used for support of machine-to-machine, also referred to as Machine-Type Communications, in current cellular standards are derivatives of traditional framed slotted ALOHA and therefore do not support high user loads efficiently. We propose an approach that is motivated by the random access method employed in LTE, which significantly increases the amount of contention resources without increasing the system resources, such as contention subframes and preambles. This is accomplished by a logical, rather than physical, extension of the access method in which the available system resources are interpreted in a novel manner. Specifically, in the proposed scheme, users perform random access by transmitting orthogonal preambles in multiple random access subframes, in this way creating access codewords that are used for contention. We show that, for the same number of random access subframes and orthogonal preambles, the amount of available contention resources is drastically increased, enabling the massive support of Machine-Type Communication users that is beyond the reach of current systems.",
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Code-expanded radio access protocol for machine-to-machine communications. / Thomsen, Henning; Kiilerich Pratas, Nuno; Stefanovic, Cedomir; Popovski, Petar.

I: Transactions on Emerging Telecommunications Technologies, Bind 24, Nr. 4, 06.2013, s. 355-365.

Publikation: Bidrag til tidsskriftKonferenceartikel i tidsskriftForskningpeer review

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T1 - Code-expanded radio access protocol for machine-to-machine communications

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AU - Popovski, Petar

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N2 - The random access methods used for support of machine-to-machine, also referred to as Machine-Type Communications, in current cellular standards are derivatives of traditional framed slotted ALOHA and therefore do not support high user loads efficiently. We propose an approach that is motivated by the random access method employed in LTE, which significantly increases the amount of contention resources without increasing the system resources, such as contention subframes and preambles. This is accomplished by a logical, rather than physical, extension of the access method in which the available system resources are interpreted in a novel manner. Specifically, in the proposed scheme, users perform random access by transmitting orthogonal preambles in multiple random access subframes, in this way creating access codewords that are used for contention. We show that, for the same number of random access subframes and orthogonal preambles, the amount of available contention resources is drastically increased, enabling the massive support of Machine-Type Communication users that is beyond the reach of current systems.

AB - The random access methods used for support of machine-to-machine, also referred to as Machine-Type Communications, in current cellular standards are derivatives of traditional framed slotted ALOHA and therefore do not support high user loads efficiently. We propose an approach that is motivated by the random access method employed in LTE, which significantly increases the amount of contention resources without increasing the system resources, such as contention subframes and preambles. This is accomplished by a logical, rather than physical, extension of the access method in which the available system resources are interpreted in a novel manner. Specifically, in the proposed scheme, users perform random access by transmitting orthogonal preambles in multiple random access subframes, in this way creating access codewords that are used for contention. We show that, for the same number of random access subframes and orthogonal preambles, the amount of available contention resources is drastically increased, enabling the massive support of Machine-Type Communication users that is beyond the reach of current systems.

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