Performance Analysis of P-persistent Slotted ALOHA Protocol for Low Power IoT Applications
Noor Zuriatunadhirah Binti Zubir1, Aizat Faiz Ramli2, Hafiz Basarudin3

1Noor Zuriatunadhirah Binti Zubir, Department of Research and Innovation, Universiti, Kuala Lumpur British Malaysian Institute Campus, Gombak Selangor, Malaysia.
2Aizat Faiz Ramli, Department of Research and Innovation, Universiti, Kuala Lumpur British Malaysian Institute Campus, Gombak Selangor, Malaysia.
3Hafiz Basarudin, Department of Tele Communication, Universiti, Kuala Lumpur British Malaysian Institute Campus, Gombak Selangor, Malaysia.

Manuscript received on 01 May 2019 | Revised Manuscript received on 15 May 2019 | Manuscript published on 30 May 2019 | PP: 2953-2958 | Volume-8 Issue-7, May 2019 | Retrieval Number: G6229058719/19©BEIESP
Open Access | Ethics and Policies | Cite | Mendeley | Indexing and Abstracting
© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: Despite the synchronization requirements, Slotted ALOHA Medium Access Control MAC protocol has been successfully implemented in a low power Internet of Things (IoT) applications such as LoRaWan. Although the scheme provides an improvement compared to ALOHA, the protocol has low efficiency in terms of throughput, delay and energy consumption. By implementing a p-persistent approach with a suitable P-Threshold into a Slotted ALOHA, the probability of more than one node simultaneously transmit can be significantly reduced. It is demonstrated that p-persistent Slotted ALOHA can improve all the performances as mentioned earlier by up to by 30% compared to the standard Slotted ALOHA. The model is validated through Monte- Carlo simulations, and the optimal P-Threshold is obtained for different scenarios.
Keyword: IoT, P-Threshold Slotted ALOHA, P-Persistent, Slotted ALOHA.
Scope of the Article: IoT