Efficient Reliable Data Transmission Using Network Coding in MANET Multipath Routing Environment

Authors:
Tomonori Kagi;Osamu Takahashi
Affiliations:
Future University-Hakodate, Hokkaido, Japan 041-8655;Future University-Hakodate, Hokkaido, Japan 041-8655
Venue:
KES '08 Proceedings of the 12th international conference on Knowledge-Based Intelligent Information and Engineering Systems, Part III
Year:
2008

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Abstract

We propose an efficient reliability improvement method in a MANET environment by applying network coding encoded by a relay node. Reliability is improved without requiring the source node to send redundant encoding packets. As shown by simulations, the packet delivery ratio of our proposed method is as high as the existing encoding method, packet-level forward error control (FEC), but our method has a longer delay than FEC and split multipath routing (SMR) in an environment with packet errors. In addition, packet overhead in our proposed method is improved by decreasing the number of packets transmitted by the source node. Thus, our proposed method realizes more efficient and reliable data transmission, especially in comparison with FEC.