Modeling and Performance Analysis of Ultra Narrow Band System for M2M (Best Paper Award)

(distinction décernée : Best Paper Award)International audienceUltra Narrow Band (UNB) has been shown to be one of the best candidate technologies for Machine-To-Machine and Low Power Wide Area communications. Its properties - long range with small RF power - make it naturally attractive for satellite communications, but also draw new challenges compared to terrestrial systems where this technology is already deployed. In this paper we propose a general semi-analytical model to evaluate the performance of a terrestrial or satellite system using UNB technology, taking into account the multiuser interference. This model is then used to assess the packet loss ratio and the throughput of a representative LEO satellite system for which Doppler effect introduces a frequency drift that has a significant impact on the UNB performances. With our model, we analyze the effect of frequency drift on the system performance