SRA: Slot reservation announcement scheme for medium access control of IEEE 802.11 crowded networks in emergency scenarios

Document Type

Conference Proceeding

Publication Date

7-28-2017

Abstract

In this paper we propose the Slot Reservation Announcement (SRA) access scheme to minimize the occurrence of channel-access collisions in infrastructure IEEE 802.11 networks under emergency and crowded scenarios. SRA is based on slot reservation in lieu of a randomized backoff approach to increase the channel-access success ratio. The proposed scheme rids IEEE 802.11-like access networks of throughput and utilization collapse under crowded scenarios. In turn, it increases channel utilization. This enabled access is critical for crowded networks under emergency scenarios where many stations suddenly contend for the channel. This scheme may be used as fallback mechanism to avoid throughput collapse in such scenarios and to enable critical communications. Our simulation results show maximum bandwidth utilization and increased throughput as compared to an IEEE 802.11 network and a recent reservation-based access scheme under crowded conditions.

Identifier

85028346261 (Scopus)

ISBN

[9781467389990]

Publication Title

IEEE International Conference on Communications

External Full Text Location

https://doi.org/10.1109/ICC.2017.7996961

ISSN

15503607

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