Distributed Scheme for Interference Mitigation of Coexisting WBANs Using Latin Rectangles

Mohamad Ali (1) , Hassine Moungla (1) , Mohamed Younis (2) , Ahmed Mehaoua (1)

1 LIPADE - EA 2517 - Laboratoire d'Informatique Paris Descartes
2 Department of Computer Science [College Park]

The performance of wireless body area networks (WBANs) may be degraded due to co-channel interference, i.e., when sensors of different coexisting WBANs transmit at the same time-slots using the same channel. In this paper, we exploit the 16 channels available in the 2.4 GHz unlicensed international band of ZIGBEE, and propose a distributed scheme that opts to avoid interference through channel to time-slot hopping based on Latin rectangles, DAIL. In DAIL, each WBAN's coordinator picks a Latin rectangle whose rows are ZIGBEE channels and columns are time-slots of its superframe. Subsequently, it assigns a unique symbol to each sensor; this latter forms a transmission pattern according to distinct positions of its symbol in the rectangle, such that collisions among different transmissions of coexisting WBANs are minimized. We further present an analytical model that derives bounds on the collision probability of each sensor's transmission in the network. In addition, the efficiency of DAIL in interference mitigation has been validated by simulations.

Domaines: Réseaux et télécommunications [cs.NI]; Réseaux sociaux et d'information [cs.SI]

Mohamad Ali, Hassine Moungla, Mohamed Younis, Ahmed Mehaoua. Distributed Scheme for Interference Mitigation of Coexisting WBANs Using Latin Rectangles. The 14th Annual IEEE Consumer Communications & Networking Conference (CCNC'17), Jan 2017, Las Vegas, United States. ⟨hal-01399575⟩