DefinePK

Abstract

In wireless communication system thermal noise is one of the noise that detected at the receiver. Thermal noise (Johnson Noise) exists in all resistors and results from the thermal agitation of free electrons therein by the temperature. This paper starts with a introduction on how temperature appears on the receiver and thermal noise on the receiver. The major contribution factor to thermal noise power and RMS voltage is also discussed analytically. The CDMA modem is used as a subject to study thermal noise in wireless communication system.