Two-Phase Random Access Procedure for LTE-A Networks
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F19%3A00331554" target="_blank" >RIV/68407700:21230/19:00331554 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1109/TWC.2019.2903479" target="_blank" >https://doi.org/10.1109/TWC.2019.2903479</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/TWC.2019.2903479" target="_blank" >10.1109/TWC.2019.2903479</a>
Alternative languages
Result language
angličtina
Original language name
Two-Phase Random Access Procedure for LTE-A Networks
Original language description
Simultaneous random access attempts from massive machine-type communications (mMTC) devices may severely congest a shared physical random access channel (PRACH) in mobile networks. This paper presents a novel two-phase random access (TPRA) procedure to deal with the congestion caused by mMTC devices accessing the PRACH. During the first phase, the TPRA splits the mMTC devices into smaller groups according to a preamble selected randomly by the devices. Then, in the second phase, each group of devices is assigned with a dedicated channel to complete the random access procedure. The proposed concept allows a base station to adjust the number of dedicated channels in real-time according to the actual network load. We then present an analytical model to estimate the access success probability and the average access delay of the TPRA. Finally, we propose a simple formula to determine the optimal number of random access resources for the second phase of the proposed TPRA. Simulations are carried out to validate the analytical models and to demonstrate the benefits of the TPRA compared to competitive techniques.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20203 - Telecommunications
Result continuities
Project
<a href="/en/project/LTT18007" target="_blank" >LTT18007: Cooperation with the International Research Centre in Area of Communication Systems</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
IEEE Transactions on Wireless Communications
ISSN
1536-1276
e-ISSN
1558-2248
Volume of the periodical
18
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
14
Pages from-to
2374-2387
UT code for WoS article
000467572100026
EID of the result in the Scopus database
2-s2.0-85064051886