Concepts inVivaldi: a decentralized network coordinate system
Coordinate system
In geometry, a coordinate system is a system which uses one or more numbers, or coordinates, to uniquely determine the position of a point or other geometric element on a manifold such as Euclidean space. The order of the coordinates is significant and they are sometimes identified by their position in an ordered tuple and sometimes by a letter, as in 'the x-coordinate'.
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Computer network
A computer network, often simply referred to as a network, is a collection of hardware components and computers interconnected by communication channels that allow sharing of resources and information. Where at least one process in one device is able to send/receive data to/from at least one process residing in a remote device, then the two devices are said to be in a network.
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Decentralization
Decentralization or decentralisation is the process of dispersing decision-making governance closer to the people and/or citizens. It includes the dispersal of administration or governance in sectors or areas like engineering, management science, political science, political economy, sociology and economics. Decentralization is also possible in the dispersal of population and employment. Law, science and technological advancements lead to highly decentralized human endeavours.
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Antonio Vivaldi
Antonio Lucio Vivaldi (4 March 1678 ¿ 28 July 1741), nicknamed il Prete Rosso ("The Red Priest") because of his red hair, was an Italian Baroque composer, priest, and virtuoso violinist, born in Venice. Recognized as one of the greatest Baroque composers, his influence during his lifetime was widespread over Europe. Vivaldi is known mainly for composing instrumental concertos, especially for the violin, as well as sacred choral works and over 40 operas.
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Round-trip delay time
In telecommunications, the round-trip delay time (RTD) or round-trip time (RTT) is the length of time it takes for a signal to be sent plus the length of time it takes for an acknowledgment of that signal to be received. This time delay therefore consists of the transmission times between the two points of a signal. In the context of computer networks, the signal is generally a data packet, and the RTT is also known as the ping time.
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Approximation error
The approximation error in some data is the discrepancy between an exact value and some approximation to it. An approximation error can occur because the measurement of the data is not precise due to the instruments. (e.g. , the accurate reading of a piece of paper is 4.5cm but since the ruler does not use decimals, you round it to 5cm. ) or approximations are used instead of the real data (e.g. , 3.14 instead of ¿).
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Latency (engineering)
Latency is a measure of time delay experienced in a system, the precise definition of which depends on the system and the time being measured. Latencies may have different meaning in different contexts.
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