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We need directional Motes! … or the next generation of sensor networks.

We need directional Motes! … or the next generation of sensor networks. Warning: By listening to this talk you may: change your research area, become a theoretician, become a hardware guru. Listening at your own risk!. The Theory.

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We need directional Motes! … or the next generation of sensor networks.

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  1. We need directional Motes!… or the next generation of sensor networks. Warning: By listening to this talk you may: change your research area, become a theoretician, become a hardware guru. Listening at your own risk!

  2. CIDR 2005

  3. The Theory • Diameter is (roughly) O(√n) in the natural case of n = O(1/r2) (needed to ensure coverage). • Problem: even adding motes does not reduce diameter! • We show that if n = Ω(1/r2 log(1/r)) and N = Ω(1/R2 log(1/R)) then the diameter is O(1/R+R/r). • If we choose 1/R = √1/r the diameter is reduced from (roughly) √n to n1/4 by only adding N ≈ √n directional motes. • Ergo: We need directional motes! CIDR 2005

  4. The Praxis CIDR 2005

  5. CIDR 2005

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