Random FM noise using two branch selection combining with correlated Rayleigh fading signals is analyzed. General expressions are derived for the cumulative distribution function (cdf) and mean square value of the random FM noise, which can be applied to any type of diversity such as space, polarization, etc. Calculated results show that if two horizontally spaced antennas parallel with the direction of vehicle motion are used at a mobile station, random FM noise can be significantly reduced for small antenna spacings.
ASJC Scopus subject areas
- Electrical and Electronic Engineering