ABSTRACT
This chapter focuses on the need for equalizers in a mobile channel and different models available for the mobile channel. In mobile cellular radio a large number of low-power base stations for transmission are deployed to cover a limited area. A cellular telephone system provides a wireless connection to a Public Switched Telephone Network for any user location within the radio range of the system. Cellular systems accommodate a large number of users over a large geographic area, within a limited frequency spectrum, with comparable quality of service to that of the landline telephone system. With frequency reuse, there are several cells that use the same frequency, which are called co-channels. The interference between signals from these cells is called Co-Channel Interference (CCI). To reduce CCI, co-channel cells must be physically separated by a minimum distance to provide sufficient isolation due to propagation.
