Titre

An asynchronous high-throughput random access protocol for low power wide area networks

Auteur(s)

ALMONACID ZAMORA Vicente1, FRANCK Laurent2,3

Type de document

Communication dans une conférence avec acte

Source

ICC 2017 : IEEE International Conference on Communications, IEEE, 21 may - 25 august 2017, Paris, France, 2017, ISBN 978-1-4673-8999-0

Année

2017

Résumé

Among the design aspects that limit the network capacity of low power wide area networks (LPWAN), the adoption of an appropriate random access (RA) medium access control (MAC) protocol plays a fundamental role. Recently, ultra narrow band (UNB) networks, which operate over Time- and Frequency-Asynchronous ALOHA (TFAA), have emerged as a novel alternative to spread spectrum communications for LPWAN applications. While the UNB TFAA approach fulfills with the primary requirements of LPWANs, namely low power consumption, low terminal cost and long range communication capabilities, its throughput and packet error rate (PER) performance is rather poor. In this paper, we propose Contention Resolution Time- and Frequency-Asynchronous ALOHA (CR-TFAA), an enhancement of TFAA which is in line with recent advances on asynchronous RA schemes, such as Asynchronous Contention Resolution ALOHA (ACRDA). Numerical results show that the proposed technique provides a remarkable throughput-PER performance. Moreover, compared to ACRDA under similar conditions, CR-TFAA provides better PER performance over practical channel loads.

Labos

1 : CSU - Centre Spatial Universitaire - Université de Montpellier (Université de Montpellier)
2 : MO(TB) - Dépt. Micro-Ondes (Institut Mines-Télécom-Télécom Bretagne-UEB)
3 : Lab-STICC(TB) - Laboratoire en sciences et technologies de l'information, de la communication et de la connaissance (UMR CNRS 6285 - Télécom Bretagne - Université de Bretagne Occidentale - Université de Bretagne Sud - ENSTA Bretagne - Ecole Nationale d'ingénieurs de Brest)

Mots clés

Satellite communications, M2M

Référence

18099

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  • Institut Carnot Télécom & Société numérique
  • Université Bretagne Loire
  • Institut Mines-Télécom