Even One-Dimensional Mobility Increases the Capacity of Wireless Networks

  • Authors:
  • S. N. Diggavi;M. Grossglauser;D. N.C. Tse

  • Affiliations:
  • -;-;-

  • Venue:
  • IEEE Transactions on Information Theory
  • Year:
  • 2005

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Abstract

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.,$Theta(1)$) per user, which is significantly higher than the throughput of fixed networks, which decays as$O(1over sqrtn)$with the number of nodes$n$, as shown by Gupta and Kumar.