Authors: Dramane Ouattara; Mohamed Aymen Chalouf; Francine Krief
Addresses: Laboratoire Bordelais de Recherche en Informatique, Université Bordeaux, 351, Cours de la Libération, F-33405 Talence, France ' Institut de Recherche en Informatique et Systèmes Aléatoires, Université Rennes 1, 263 Avenue Général Leclerc, 35000 Rennes, France ' Laboratoire Bordelais de Recherche en Informatique, Bordeaux INP, Avenue des Facultés, 33400 Talence, France
Abstract: In this paper, we investigate the use of cognitive radio systems in medical data transmission. Therefore, based on the state-of-the-art, we propose a complete cognitive-radio communication architecture for eHealth systems. The goal is to point out significant technical challenges required for more flexible and effective transmissions in eHealth contexts. After that, we study connectivity, interference management and performance criteria in cognitive-radio based eHealth systems. For connectivity, we show that cognitive-radio technology allows exploring opportunistically frequencies to find available channels. Then, to avoid interference, we propose a strategy-based management plan to reduce disruption risks. An example of strategy, frequency hopping, is then implemented and tested. Finally, we analyse the performance of our proposal for some categories of medical data. We propose therefore a function that reinforces the cognitive radio decision-making and spectrum sharing modules by controlling some quality parameters.
Keywords: eHealth systems; cognitive radio networks; communication performance; QoS; interference management; permanent connectivity.
International Journal of Autonomous and Adaptive Communications Systems, 2019 Vol.12 No.1, pp.1 - 33
Received: 09 Mar 2017
Accepted: 22 Feb 2018
Published online: 30 Oct 2018 *