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Even One-Dimensional Mobility Increases the Capacity of Wireless Networks

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3 Author(s)
S. N. Diggavi ; Sch. of Comput. & Commun. Sci. (I&C), EPFL, Lausanne, Switzerland ; M. Grossglauser ; D. N. C. Tse

We study the capacity of ad hoc wireless networks with mobile nodes. The mobility model examined is one where the nodes are restricted to move along one-dimensional paths. We examine the scaling laws for the per user throughput achievable over long time-scales, making this suitable for applications with loose delay constraints. We show that under this regime of restricted mobility, we attain a constant throughput (i.e., Θ (1)) per user, which is significantly higher than the throughput of fixed networks, which decays as O(1/√n) with the number of nodes n, as shown by Gupta and Kumar.

Published in:

IEEE Transactions on Information Theory  (Volume:51 ,  Issue: 11 )