Architecture of low duty-cycle mechanisms

Nadjib Aitsaadi (1) , Paul Mühlethaler (1) , Mohamed-Haykel Zayani (1)

1 HIPERCOM2 - High PERformance COMmunications

We describe the principles of low duty WSN architectures and we summarize the main WSN asynchronous MAC low duty-cycle schemes found in the literature. They are mainly two schemes, the first technique is sender-oriented and the second technique is receiver oriented. We explain how MAC low duty-cycle schemes and opportunistic routing algorithms can be combined in cross-layer approach. We propose two low duty WSN architectures: one is based on B-MAC (Sender-oriented), the second on RI-MAC (Receiver-oriented). We depict several variants for each cross-layer scheme. Depending on the transmission range, we evaluate the average i) packet delivery probability, ii) delay at each hop, iii) number of hops to reach the sink and iv) end-to-end delivery delay. We compare the simulation results, for each scheme, with those obtained by a simple analytical model using a Poisson point process. We study the energy consumed when no event is detected and the additional energy to convey a packet to the sink. We show that the gain in energy obtained with a low duty-cycle is very significant.

Mots clés: Wireless Sensor Networks; Opportunistic Routing; Low Duty-Cycle

Domaines: Réseaux et télécommunications [cs.NI]

Nadjib Aitsaadi, Paul Mühlethaler, Mohamed-Haykel Zayani. Architecture of low duty-cycle mechanisms. 2014. ⟨hal-01068788⟩