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Reports (Research Report) Year : 2008

Energy-delay bounds analysis in wireless multi-hop networks with unreliable radio links

Abstract

Energy efficiency and transmission delay are very important parameters for wireless multi-hop networks. Previous works that study energy efficiency and delay are based on the assumption of reliable links. However, the unreliability of the channel is inevitable in wireless multi-hop networks. This paper investigates the trade-off between the energy consumption and the end-to-end delay of multi-hop communications in a wireless network using an unreliable link model. It provides a closed form expression of the lower bound on the energy-delay trade-off for different channel models (AWGN, Raleigh flat fading and Nakagami block-fading) in a linear network. These analytical results are also verified in 2-dimensional Poisson networks using simulations. The main contribution of this work is the use of a probabilistic link model to define the energy efficiency of the system and capture the energy-delay trade-offs. Hence, it provides a more realistic lower bound on both the energy efficiency and the energy-delay trade-off since it does not restrict the study to the set of perfect links as proposed in earlier works.
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Dates and versions

inria-00306697 , version 1 (29-07-2008)

Identifiers

  • HAL Id : inria-00306697 , version 1
  • ARXIV : 0807.4656

Cite

Ruifeng Zhang, Jean-Marie Gorce, Katia Jaffrès-Runser. Energy-delay bounds analysis in wireless multi-hop networks with unreliable radio links. [Research Report] RR-6598, INRIA. 2008, pp.38. ⟨inria-00306697⟩
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