ReCord: A Distributed Hash Table with Recursive Structure

We propose a simple distributed hash table called ReCord, which is a generalized version of Randomized- Chord and offers improved tradeoffs in performance and topology maintenance over existing P2P systems. ReCord is scalable and can be easily implemented as an overlay network, and offers a good tradeoff between the node degree and query latency. For instance, an n-node ReCord with O(log n) node degree has an expected latency of \theta (\log n) hops. Alternatively, it can also offer \theta (\frac{{\log n}}{{\log \log n}}) hops latency at a higher cost of o(\frac{{\log ^2 n}}{{\log \log n}}) node degree. Meanwhile, simulations of the dynamic behaviors of ReCord are studied.