Optimal multicast capacity and delay tradeoffs in MANETs

  • Zhang J
  • Wang X
  • Tian X
 et al. 
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Abstract

In this paper, we give a global perspective of multicast capacity and delay analysis in Mobile Ad-hoc Networks (MANETs). Specifically, we consider two node mobility models: (1) two-dimensional i.i.d. mobility, (2) one-dimensional i.i.d. mobility. Two mobility time-scales are included in this paper: (i) Fast mobility where node mobility is at the same time-scale as data transmissions; (ii) Slow mobility where node mobility is assumed to occur at a much slower time-scale than data transmissions. Given a delay constraint D, we first characterize the optimal multicast capacity for each of the four mobility models, and then we develop a scheme that can achieve a capacity-delay tradeoff close to the upper bound up to a logarithmic factor. Our study can be further extended to two-dimensional/one-dimensional hybrid random walk fast/slow mobility models and heterogeneous networks.

Author-supplied keywords

  • Mobile ad hoc networks (MANETs)
  • Multicast capacity and delay tradeoffs
  • capacity achieving schemes
  • heterogeneous networks
  • hybrid random walk mobility models
  • independent and identically distributed (i.i.d.) mobility models

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