ABSTRACT
This chapter addresses the problems of noise and interference. It explores the interference problem, which may be classified into four main categories: intermodulation, intersymbol, adjacent channel, and cochannel. The chapter examines the frequency band within which there is significant noise power of some relevant radio noise sources. It investigates the statistics of the proportion of mobiles in a situation of having their adjacent-channel interference problems increased due to their geographical location within the cell. Cochannel interference problems are then tackled, with an initial objective of obtaining an analytical solution. Noise and interference are two phenomena that limit the operating range of all radio equipment. Noise is an unwanted disturbance within useful frequency band, arising from various sources and exhibiting different characteristics. Noise disturbance is said to be of the additive or multiplicative type, depending on whether the modification introduced to the signal is of additive or multiplicative nature, respectively.
