ISSN 1000-1239 CN 11-1777/TP

Journal of Computer Research and Development ›› 2016, Vol. 53 ›› Issue (4): 834-844.doi: 10.7544/issn1000-1239.2016.20151165

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Address Compression for Hierarchical Forwarding Architecture in IPv6 IoT

Xiao Rong1, Sun Bo1, Chen Wenlong2, Xiao Yongkang1, Wei Yungang1   

  1. 1College of Information Science and Technology, Beijing Normal University, Beijing 100875); 2College of Information Engineering, Capital Normal University, Beijing 100048)
  • Online:2016-04-01

Abstract: As one of the most significant parts of “Internet +”, Internet of things (IoT) is being widely applied in various aspects of human society. IPv6 identification is the base of large-scale deployment and interconnection of IoT. Nevertheless, the 128-bit IPv6 address brings more storage and bandwidth consumptions for resource-constrained IoT. A novel compression mechanism-named IACH is proposed for the hierarchical IoT forwarding architecture, which mainly includes: removing invalid routing message at the end of IPv6 address, address stripping, and address extension. Moreover, the irregular outside IPv6 addresses can be translated into virtual addresses of IoT subnets by means of address mapping, which is compressed according the described mechanism. IACH is fully compatible with 6LoWPAN. Experiments and performance analysis show that IACH can significantly increase the real upper payload in packets transmission. In particular, the forwarding delay of IACH is shorter than standard 6LoWPAN for packets with the same length of IP-upper payload.

Key words: Internet of things (IoT), hierarchical forwarding, address compression, IPv6, address mapping

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