Presentation 11/13: Energy-Aware Adaptive Routing for Large-Scale Ad Hoc Networks: Protocol and Performance Analysis
Su Kim
Title: "Energy-Aware Adaptive Routing for Large-Scale Ad Hoc Networks:
Protocol and Performance Analysis,"
Published: IEEE Transactions on Mobile Computing, Vol. 6, Issue 9,
Page(s):1048-1059, Sep. 2007
Wei Gao
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Critique:
Energy-Aware Adaptive Routing for Large-Scale Ad Hoc Networks:
Protocol and Performance Analysis
This paper presents an energy-aware traffic-adaptive routing strategy
for large-scale MANETs, which is called EAGER.
Key ideas:
EAGER combines the two major routing strategy, i.e, the proactive and
reactive strategies together for energy efficiency. Such combination
is based on traffic load and rate of topology change. The key idea of
EAGER is that it partitions the network into cells (clusters), and
adjusts the cell size according to the network traffic conditions.
More specifically, intra-cell routing is proactive and inter-cell
routing is reactive.
Pros:
The paper provides a novel hybrid routing approach for energy-aware
routing, and the simulation results show that, such hybrid scheme, in
cases of uniform and localized call rates, is able to reduce the
overall network energy consumption considerably. Various parameters
related to the scheme are analyzed and optimization approaches are
provided for the adaptation to different mobile applications.
Cons:
The major drawback of the proposed approach is that, the routing is
based on the cell partition of the network, but the paper does not
show hot to do such partition in detail. The authors make a strong
assumption that the cells are pre-defined geographically, and each
node knows its location and thus cell association through certain
localization algorithms or GPS receivers. On one hand, such assumption
itself is not reasonable for large-scale MANETs. On the other hand,
even with such assumption, the communication among different nodes to
maintain such topological cell structure is still needed to be
elaborated.
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