Resource Management in a New Green-IT World

Abstract

Wireless mobile, cabled xDSL, Fiber Optical Systems and Power Line Communications share a common problem: Bandwidth-Power efficiencies. While the efficiency required for the spectrum usage is different from wireless to wireline since the former has to respect some standardization bodies recommendations and the latter is mainly tied to channel quality aspects, the power efficiency is mainly linked to electrical power that comes from different sources like carbon, gas, oil, wind, solar, water. Unfortunately only few of these are renewable and require institutional investments for the medium-far future. In the meantime the only one way to be run appears to be the efficient. From this the necessity, in a Green-IT vision, to propose schemes, architectures, protocols and algorithms able to optimally manage bandwidth and power so to guarantee the expected performance at a reasonable cost. This is the direction currently followed by scientific community for already existing systems and in-developing new technologies.