Interference Modelling and Analysis of Random FDMA scheme in Ultra Narrowband Networks

Minh-Tien Do 1, 2 Claire Goursaud 1, 2 Jean-Marie Gorce 1, 2
1 SOCRATE - Software and Cognitive radio for telecommunications
CITI - CITI Centre of Innovation in Telecommunications and Integration of services, Inria Grenoble - Rhône-Alpes
Abstract : —Ultra narrow band (UNB) transmission is a very promising technology for low-throughput wireless sensor net-works. This technology has already been deployed and has proved to be ultra-efficient for point-to-point communications in terms of power-efficiency, and coverage area. This paper introduces this technology and gives some insights on the scalability of UNB for a multi-point to point network. In particular, we present a new multiple access scheme: random frequency division multiple access (R-FDMA) and study the impact of the induced interference on the system performance in terms of bit error rate and outage probability. To this aim, we propose and design a simplified model to describe the interference impact. Thanks to this model, we theoretically derive BER and OP expressions for the lower, approximated and upper case. This enables us to evaluate the performance capacity, by determining the maximum number of simultaneous users that can be served.
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Minh-Tien Do, Claire Goursaud, Jean-Marie Gorce. Interference Modelling and Analysis of Random FDMA scheme in Ultra Narrowband Networks. AICT 2014, Jul 2014, Paris, France. ⟨hal-01096493⟩

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