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On the Scalability of Constructive Interference in Low-Power Wireless Networks
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Orientador(es)
Resumo(s)
Constructive baseband interference has been recently introduced in low-power wireless networks as a promising
technique enabling low-latency network flooding and sub-microsecond time synchronisation among network
nodes. The scalability of this technique has been questioned in regards to the maximum temporalmisalignment
among baseband signals, due to the variety of path delays in thenetwork. By contrast, we find that the scalability
is compromised, in the firstplace, by emerging fast fading in the composite channel, which originates in thecarrier
frequency disparity of the participating repeaters nodes. We investigatethe multisource wave problem and show
the resulting signal becomes vulnerablein the presence of noise, leading to significant deterioration of the link
whenever the carriers have similar amplitudes.
Descrição
12th European Conference on Wireless Sensor Networks (EWSN 2015). 9 to 11, Feb, 2015. Porto, Portugal