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