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MANET Working Group Sanghyun Ahn
Internet Draft University of Seoul
Expires: June 13, 2016 December 22, 2015


Requirements on Multipath Routing Protocols for MANET
draft-ahn-manet-multipath-requirement-00.txt

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Internet-Draft Requirements on Multipath Routing Protocols December 2015


Abstract

This document describes the requirements on the protocols providing
multiple routes between a given source and destination node pair
in a mobile ad hoc network (MANET). For this, the conditions to be
considered in defining a MANET multipath routing protocol are
listed.


Table of Contents

1. Requirements notation . . . . . . . . . . . . . . . . . . . . ?
2. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Requirements on MANET Multipath Routing Protocols. . . . . . . 3
4. Other Considerations . . . . . . . . . . . . . . . . . . . . . 4
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . . 4


































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1. Requirements notation

The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in [RFC2119].


2. Introduction

The mobile ad hoc network (MANET) is composed of a number of mobile
nodes which can communicate with each other through multiple
wireless links without the help of a wired infrastructure.
Therefore, in the MANET, the route connectivity tends to be very
unstable. This route unstability can be mitigated by providing more
than one route to a source and destination node pair. In recent
years, there have been intensive studies done on multipath routing
protocols for the MANET [1]. Also, multipath routing protocols may
have the advantage of providing load balancing by distributing data
traffic to a number of routes. On the other hand, it may incur more
control message overhead to set up multiple routes.

In this draft, we define the requirements on MANET multipath
routing protocols.


3. Requirements on MANET Multipath Routing Protocols

MANET multipath routing protocols MAY consider the following
conditions:

- the number of routes for a given pair of source and destination
nodes
- the disjointness of the routes between a source and destination
node pair
- the control message overhead for establishing a given number of
routes
- the base MANET unicast routing protocol, such as AODV [2] or DSR
[3], on which the multipath routing protocol is defined
- the degree of changes on the base MANET unicast routing protocol

With considering the above-mentioned conditions, a MANET multipath
routing protocol SHOULD satisfy the following requirements:









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- The control message overhead incurred by a MANET multipath routing
protocol SHOULD NOT overwhelm the data traffic in the network.
Or, more definitively, it SHOULD NOT exceed a certain portion of
the total amount of the network traffic. The latter is more
definitive, but achieving this may not be feasible.
- The modifications and/or extensions on the base MANET unicast
routing protocol SHOULD NOT hinder the operation of the base MANET
unicast routing protocol.
- The number of routes provided for a given source and destination
node pair SHOULD be controlled adaptively so that the multiple
routes do not increase the amount of routing information
maintained in a router unnecessarily.


4. Other Considerations

TBD


References

[1] M. Tarique, K. E. Tepe, S. Abidi and S. Erfani, "Survey of
Multipath Routing Protocols for Mobile Ad Hoc Networks," Journal
of Network and Computer Applications, November 2009.
[2] C. Perkins, E. Belding-Royer and S. Das, "Ad hoc On-Demand
Distance Vector (AODV) Routing," RFC 3561, July 2003.
[3] D. Johnson, Y. Hu and D. Maltz, "The Dynamic Source Routing
Protocol," RFC 4728, February 2007.


Author's Address

Sanghyun Ahn
University of Seoul
90, Cheonnong-dong, Tongdaemun-gu
Seoul 130-743
Korea
Email: ahn@uos.ac.kr













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