Research paper on new communication technologies on WSNs accepted to the 20th European Wireless Conference

5 February 2014

A new research paper on new communication technologies on WSNs has been accepted to be presented at the 20th European Wireless Conference.

The paper, entitled "CAS-based Channel Access Protocol for IEEE 802.11ah WLANs", was written by Dr. Albert Bel, Toni Adame, Dr. Boris Bellalta, Dr. Jaume Barceló, Javier González and Dr. Miquel Oliver.

"IEEE 802.11ah Task Group is currently working on the standardization of a new amendment with the focus placed on sensor and actuator networks. It will operate at sub-1GHz bands, ensure transmission ranges up to 1 Km, minimum network data rate of 100 kbps and very low power operation. This new amendment will extend IEEE 802.11 potential to applications such as smart metering, plan automation, eHealth or surveillance. In this paper we propose a novel channel access protocol for IEEE 802.11ah WLANs based on a smart use of the Channel Access Slots (CASs), in which the Restricted Access Windows (RAWs) can be divided. More concretely, our protocol optimizes the number of CASs, their length and their allocation to the stations (STAs). The presented scheme allows both the Access Point (AP) and the STAs to properly deliver data packets in densely populated scenarios, while maximizing the time they remain in sleep mode in order to keep the energy consumption low."

Given the promising results obtained, the application of this technology to markets like eHealth and Smart Metering can be of high interest for the group and companies related.


This work was partially supported by the Spanish government through the projects TEC2012-32354 and IPT-2012-0972-300000, and by the Catalan Government (SGR2009-00617)