Implementation and Evaluation of the Enhanced Header Compression (IPHC) for 6LoWPAN

Authors:
Alessandro Ludovici;Anna Calveras;Marisa Catalan;Carles Gómez;Josep Paradells
Affiliations:
Wireless Networks Group (WNG), Universitat Politècnica de Catalunya, Barcelona, Spain 08034;Wireless Networks Group (WNG), Universitat Politècnica de Catalunya, Barcelona, Spain 08034;Wireless Networks Group (WNG), Universitat Politècnica de Catalunya, Barcelona, Spain 08034;Wireless Networks Group (WNG), Universitat Politècnica de Catalunya, Barcelona, Spain 08034;Wireless Networks Group (WNG), Universitat Politècnica de Catalunya, Barcelona, Spain 08034
Venue:
EUNICE '09 Proceedings of the 15th Open European Summer School and IFIP TC6.6 Workshop on The Internet of the Future
Year:
2009

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Abstract

6LoWPAN defines how to carry IPv6 packets over IEEE 802.15.4 low power wireless or sensor networks. Limited bandwidth, memory and energy resources require a careful application of IPv6 in a LoWPAN. The IEEE 802.15.4 standard defines a maximum frame size of 127 bytes that decreases to 102 bytes considering the header overhead. A further reduction is due to the security, network and transport protocols header overhead that, in case of IPv6 and UDP, leave only 33 bytes for application data. A compression algorithm is necessary in order to reduce the overhead and save space in data payload. This paper describes and compares the proposed IPv6 header compression mechanisms for 6LoWPAN environments.