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K-preferential slotted ALOHA for ultra reliable low latency communications

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dc.contributor.author Agarwal, S.
dc.contributor.author Pandey, S.
dc.date.accessioned 2021-11-18T19:19:37Z
dc.date.available 2021-11-18T19:19:37Z
dc.date.issued 2021-11-19
dc.identifier.uri http://localhost:8080/xmlui/handle/123456789/3213
dc.description.abstract Ultra-reliable low-latency communication (URLLC), one of the key component of 5G, provides a set of features required to support mission-critical applications. Slotted ALOHA is one of the most popular mechanism to share a channel among multiple users. However, slotted ALOHA cannot meet high reliability requirements of URLLC when large number of users are present in the network. In this paper, we propose a preferential medium access control scheme to match the high reliability requirement of URLLC. It is ensured by dedicating every Kth slot exclusively for URLLC transmission. We analytically obtain the packet delay distribution and reliability of both the URLLC and regular packets. An optimization problem is framed to maximize the reliability of regular packets subject to meeting the URLLC reliability constraints. Extensive simulations indicate that our proposed K-preferential S-ALOHA protocol can meet the URLLC requirements even when the network traffic is high. en_US
dc.language.iso en_US en_US
dc.subject URLLC en_US
dc.subject medium access en_US
dc.subject reliability en_US
dc.subject discrete time Markov chain en_US
dc.title K-preferential slotted ALOHA for ultra reliable low latency communications en_US
dc.type Article en_US


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