News Column

Studies from University of Thessaly Yield New Information about Computer Networks

June 11, 2014

By a News Reporter-Staff News Editor at Telecommunications Weekly -- Investigators publish new report on Computer Networks. According to news reporting originating from Volos, Greece, by VerticalNews correspondents, research stated, "We investigate on the sustainability of multihop wireless communications in the context of Information-Centric Networks, when content is replicated in caches over the network. The problem is cast in a flat wireless network for a given content popularity distribution and sized by three parameters, (i) the network size N, (ii) the content volume M and (iii) the cache capacity K per node."

Our news editors obtained a quote from the research from the University of Thessaly, "The objective is to select a joint replication and delivery scheme that minimizes the link traffic. Assuming the Zipf distribution about the content popularity, a law well established in the research on Internet traffic, we compute an order optimal solution, let the three size parameters jointly scale to infinity, and find the scaling laws about the link rates, ranging from 0( 51) down to 0(1)."

According to the news editors, the research concluded: "Analyzing the derived laws, we determine the regimes that the network becomes sustainable subject to the scaling of the three network size parameters and the Zipf rank exponent, characterize the relative merit of network resources and identify the induced trade-offs about network expansion."

For more information on this research see: Enhancing wireless networks with caching: Asymptotic laws, sustainability & trade-offs. Computer Networks, 2014;64():353-368. Computer Networks can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier -; Computer Networks -

The news editors report that additional information may be obtained by contacting S. Gitzenis, University of Thessaly, Dept. of Comp & Commun Engn, Volos 38221, Greece. Additional authors for this research include G.S. Paschos and L. Tassiulas.

Keywords for this news article include: Volos, Greece, Europe, Wireless Network, Computer Networks, Wireless Technology

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Source: Telecommunications Weekly

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