A simple distributed autonomous power control algorithm and its convergence

For wireless cellular communication systems, one seeks a simple effective means of power control of signals associated with randomly dispersed users that are reusing a single channel in different cells. By effecting the lowest interference environment, in meeting a required minimum signal-to-interfe...

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Vydáno v:IEEE transactions on vehicular technology Ročník 42; číslo 4; s. 641 - 646
Hlavní autoři: Foschini, G.J., Miljanic, Z.
Médium: Journal Article
Jazyk:angličtina
Vydáno: New York, NY IEEE 01.11.1993
Institute of Electrical and Electronics Engineers
Témata:
Applied sciences
Centralized control
Control systems
Convergence
Delay
Dispersion
Distributed algorithms
Equipments and installations
Exact sciences and technology
Interference
Mobile radiocommunication systems
Power control
Power measurement
Radiocommunications
Telecommunications
Telecommunications and information theory
Wireless communication
Mobile radiocommunication
Cell system
Power control
Frequency reuse
Distributed algorithm
Interference
ISSN:0018-9545
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Shrnutí:For wireless cellular communication systems, one seeks a simple effective means of power control of signals associated with randomly dispersed users that are reusing a single channel in different cells. By effecting the lowest interference environment, in meeting a required minimum signal-to-interference ratio of rho per user, channel reuse is maximized. Distributed procedures for doing this are of special interest, since the centrally administered alternative requires added infrastructure, latency, and network vulnerability. Successful distributed powering entails guiding the evolution of the transmitted power level of each of the signals, using only focal measurements, so that eventually all users meet the rho requirement. The local per channel power measurements include that of the intended signal as well as the undesired interference from other users (plus receiver noise). For a certain simple distributed type of algorithm, whenever power settings exist for which all users meet the rho requirement, the authors demonstrate exponentially fast convergence to these settings.< >
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ISSN:0018-9545
DOI:10.1109/25.260747