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Summary: IEEE COMMUNICATIONS SURVEYS & TUTORIALS, VOL. 12, NO. 1, FIRST QUARTER 2010 1
Route Optimization in Network Mobility: Solutions,
Classification, Comparison, and Future Research
Directions
Abu Zafar M. Shahriar, Mohammed Atiquzzaman, Senior Member, IEEE, and William Ivancic
Abstract--NEtwork MObility (NEMO) handles mobility of a
set of mobile nodes in an aggregate way using one or more mobile
routers. NEMO introduces several advantages, such as reduced
signaling, increased manageability, reduced power consumption
and conservation of bandwidth when compared to individual
host mobility. NEMO Basic Support Protocol (BSP), the IETF
standard for NEMO, suffers from a number of limitations,
like inefficient route and increased handoff latency. Most of
the recent research efforts on NEMO have concentrated on
solving the problem of inefficient route resulting in several route
optimization schemes to solve the problem. To choose a route
optimization scheme, it is very important to have a quantitative
comparison of the available route optimization schemes. The
objective of this article is to survey, classify and compare the route
optimization schemes proposed in the literature over the last five
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