Rise over thermal

Rise over thermal

In wireless communication systems, the rise over thermal (ROT) indicates the ratio between the total power received from wireless sources at a base station and the thermal noise [A. J. Viterbi "CDMA: Principles of Spread Spectrum Communication", Addison-Wesley Wireless Communications Series, May 1995, ISBN: 0201633744] .

The ROT is typically used as a measure of how congested a cellular telephone network is. The capacity of systems using CDMA (code division multiple access) is often determined by how high the acceptable level of ROT is.

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