Editing Co-channel interference (section)

== Cellular mobile networks ==
In [[Cellular network|cellular mobile communication]] ([[GSM]] & [[LTE (telecommunication)|LTE]] Systems, for instance), frequency [[Electromagnetic spectrum|spectrum]] is a precious resource which is divided into non-overlapping spectrum bands which are assigned to different cells (In cellular communications, a cell refers to the hexagonal/circular area around the base station antenna). However, after certain geographical distance, these frequency bands are re-used, i.e. the same spectrum bands are reassigned to other distant cells. The co-channel interference arises in the cellular mobile networks owing to this phenomenon of [[Cellular network|frequency reuse]]. Thus, besides the intended signal from within the cell, signals at the same frequencies (co-channel signals) arrive at the receiver from the undesired transmitters located (far away) in some other cells and lead to deterioration in receiver performance.