Associativity-based routing: Difference between revisions

Revision as of 13:50, 7 September 2018

Revision as of 14:10, 7 September 2018

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In 1998, ABR was successfully implemented<ref>{{citation |title="Mobile Computing Magazine Interview Article - First practical ad hoc wireless network implementation outdoors, 1999 |url=http://init.unizar.es/images/MobiCompMag1999.pdf}}</ref><ref>{{citation |title="Implementation and evaluation of an adaptive routing protocol for infrastructureless mobile networks, Proceedings of 9th International Conference on Computer Communications and Networks, 2000." |url=http://ieeexplore.ieee.org/document/885465/}}</ref><ref>{{citation |title="Evaluating the communication performance of an ad hoc wireless network, IEEE Transactions on Wireless Communications, 2000" |url=https://scholar.google.com/citations?view_op=view_citation&hl=en&user=YTwSsH4AAAAJ&citation_for_view=YTwSsH4AAAAJ:WF5omc3nYNoC}}</ref><ref>{{citation |title="Experimenting with an Ad Hoc wireless network, ACM SIGMETRICS Performance Evaluation Review, Volume 28 Issue 3, Dec. 2000" |url=http://dl.acm.org/citation.cfm?id=377622}}</ref> into Linux kernel, in various different branded laptops (IBM Thinkpad, COMPAQ, Toshiba, etc.) that are equipped with [[WaveLAN]] 802.11a PCMCIA wireless adapters. A working 6-node wide [[wireless ad hoc network]] spanning a distance of over 600 meters was achieved and the successful event was published in Mobile Computing Magazine in 1999. Various tests were performed with the network:

*[1]# Transmission of up to 500MBytes of data from source to destination over 3-hop route.

*[2]# Link breaks and automatic link repairs proven to be working

*[3]# Automatic Route Discovery

*[4]# Route Delete

*[5]# Web Server in Ad Hoc mode – with source being client and destination being the web server

*[6]# Transmission of multimedia information (audio<ref>{{citation |title="Transporting Audio over Wireless Ad Hoc Networks, Proc. International Conference on Personal, Indoor And Mobile Radio Communications, Pimrc, 2003, v. 1, p. 772-777" |url=https://hub.hku.hk/bitstream/10722/46490/1/92280.pdf?accept=1}}</ref> and video)

*[7]# [[TELNET]] over Ad Hoc

*[8]# [[FTP]] over Ad Hoc

*[9]# [[HTTP]] over Ad Hoc

Also, network performance measurements on the following were made:

*[1]# End-to-end delay

*[2]# TCP throughput

*[3]# Packet loss ratio

*[4]# Route discovery delay

*[5]# Route repair delay

*[6]# Impact of packet size on throughput

*[7]# Impact of beaconing interval on throughput and remaining battery life

In 2002, TRW Tactical Systems Incorporation implemented<ref>{{citation |title="Next-Generation Tactical Ad Hoc Mobile Wireless Networks, TRW Systems Journal, 2004 (PDF)" |url=https://drive.google.com/open?id=1LJotUZzeYZxHUg1F8YMm2zS5OdNKgguQ}}</ref> an enhancement of the ABR protocol and successfully implemented on ORiNOCO WaveLAN 802.11b over an X windows system running Linux 5.2 Operating System on DELL laptops. The implementation and field test were done in an outdoor setting in [[Carson, California]] over a 6-node ad hoc network. The enhancement made to the protocol include: