Rise over thermal

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In wireless communication systems, the rise over thermal (ROT) indicates the ratio between the total interference received on a base station and the thermal noise.[1]

The ROT is a measurement of congestion of a cellular telephone network. The acceptable level of ROT is often used to define the capacity of systems using CDMA (code division multiple access).


  1. ^ A. J. Viterbi "CDMA: Principles of Spread Spectrum Communication", Addison-Wesley Wireless Communications Series, May 1995, ISBN 0-201-63374-4