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http://dx.doi.org/10.6109/jkiice.2012.16.6.1229

Efficient Method for Exchanging Data between DDS Middlewares based on Adaptive Packet Transmission  

Ahn, Sung-Woo (경남정보대학교)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.16, no.6, 2012 , pp. 1229-1234 More about this Journal
Abstract
In this paper, we analyze the problems that the DDS middleware, which is a standard data-centric communication interface, uses the fixed packet transmission method by the pre-defined protocol for exchanging data packets. The packet transmission method selected in a fixed manner cannot handle appropriately the increasing of resource overhead in an environment where the load of the DDS network changes dynamically. If the load on the node and network exceeds the threshold, the performance of the packet transmission may be degraded rapidly. This results in a failure of ensuring the real-time characteristic of DDS middleware. To solve this problem, we propose the scheme of the adaptive packet transmission for adjusting the transmission method in real-time based on the overhead on the DDS network.
Keywords
DDS; Data Distribution Service; Adaptive Packet Transmission; Unicast; Multicast;
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