DocumentCode :
459765
Title :
Layered IP Header Compression for IP-enabled Sensor Networks
Author :
Westphal, Cédric
Author_Institution :
Communication System Laboratory, Nokia Research Center, Mountain View, California. E-mail: cedric.westphal@nokia.com
Volume :
8
fYear :
2006
fDate :
38869
Firstpage :
3542
Lastpage :
3547
Abstract :
Sensor networks introduce new constraints on wireless and ad-hoc networks, especially in terms of band-width limitations and power efficiency. If such network is still using IP, for instance if it is connected eventually to the internet, using IP header compression becomes a strong necessity. IP header compression is usually a link compression between the mobile device and the base station. In a sensor network however, there is a succession of wireless links. Link based compression might be costly, as each hop has to decompress the IP headers and re-compress them for further forwarding, consuming power for each operation. We present here a technique to alleviate this issue and provide multi-hop compression. The idea is to split the compression according to the packet´s different layers: the network part of the header, and the transport part of the header are compressed differently, using two orthogonal mechanisms. We introduce a signaling that allows the nodes participating in the compression to establish the compression end-to-end. The multi-hop compression might be especially beneficial in sensor networks, where typically payload is small and the cost of transmitting any bit is quite high.
Keywords :
Ad hoc networks; Bandwidth; Base stations; Costs; Energy consumption; IP networks; Payloads; Routing; Spread spectrum communication; Wireless sensor networks; Header compression; end-to-end compression; network layer; transport layer;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Communications, 2006. ICC '06. IEEE International Conference on
Conference_Location :
Istanbul
ISSN :
8164-9547
Print_ISBN :
1-4244-0355-3
Electronic_ISBN :
8164-9547
Type :
conf
DOI :
10.1109/ICC.2006.255621
Filename :
4025022
Link To Document :
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