Performance of OLSR in MANETs with Cross-Layer Metrics and TCP/UDP Flows

Author

Colizza, M. ; Pratesi, M. ; Santucci, Fortunato ; Pollio, S. ; Rigazzi, Giovanni

fYear

2012

fDate

21-23 Sept. 2012

Firstpage

1

Lastpage

5

Abstract

This paper investigates traffic related performance for TCP/UDP-based traffic flows in a MANET powered by OLSR with various routing metrics. Besides the ETX (expected transmission count), an alternative is proposed that resorts on a cross-layer approach to obtain PER (packet error rate) estimates from the physical layer. Throughput and latency performance are evaluated for various configurations of traffic flows and network size in a specifically developed simulation environment. It is seen that the PER-based alternative may outperform the ETX-based alternative in most configurations, by providing better support for transport layer protocol behaviours (e.g. TCP window size).

Keywords

error statistics; estimation theory; mobile ad hoc networks; performance evaluation; telecommunication network routing; telecommunication traffic; transport protocols; ETX-based alternative; MANET; OLSR; PER estimates; PER-based alternative; TCP window size; TCP/UDP flows; TCP/UDP-based traffic flows; cross-layer approach; cross-layer metrics; expected transmission count; latency performance evaluation; network size; packet error rate estimates; physical layer; routing metrics; simulation environment; throughput; traffic related performance; transport layer protocol behaviours; Ad hoc networks; Delay; Mobile computing; Routing; Routing protocols; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing (WiCOM), 2012 8th International Conference on

Conference_Location

Shanghai

ISSN

2161-9646

Print_ISBN

978-1-61284-684-2

Type

conf

DOI

10.1109/WiCOM.2012.6478615

Filename

6478615