Contention-Based Access for Ultra-Reliable Low Latency Uplink Transmissions

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2018-04
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Mcode
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Language
en
Pages
4
182 - 185
Series
IEEE WIRELESS COMMUNICATIONS LETTERS, Volume 7, issue 2
Abstract
We consider sporadic ultra-reliable and low latency communications in the uplink 5G cellular systems. Reliable low latency access for randomly emerging packet transmission needs cannot be guaranteed in current wireless systems. To achieve the goal of low latency and high reliability simultaneously, we propose a contention-based transmission scheme aimed for the users with small payloads. We target to reduce collision probability by considering multiple transmissions for the same packet for reliable reception. We find the optimal number of consecutive multiple transmissions that reduces collisions and achieves target reliability within the latency window. By means of intended frame structure design for the 5G cellular systems, results are drawn and comparisons are made with default multi-channel slotted ALOHA access scheme.
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Singh, B, Tirkkonen, O, Li, Z & Uusitalo, M 2018, ' Contention-Based Access for Ultra-Reliable Low Latency Uplink Transmissions ', IEEE WIRELESS COMMUNICATIONS LETTERS, vol. 7, no. 2, pp. 182 - 185 . https://doi.org/10.1109/LWC.2017.2763594