FPGA implementation of a fuzzy logic based handoff controller for microcellular mobile networks

In mobile cellular systems the handoff is a very important process, which refers to a mechanism that transfers an ongoing call from one Base Station (BS) to another. The performance of the handover mechanism is very important to maintain the desired Quality of Service (QoS). The conventional handoff decisions are normally signal strength based, which are not suitable for modern small sized microcellular networks. In order to maintain reliable communication in a microcellular system new and better handoff algorithms must be needed to keep QoS as high as possible. Handoff algorithms, based on soft computing techniques such as Fuzzy Logic, Neural Networks etc can be used for the same purpose. The purpose of this work is to design and implement a Fuzzy Logic based Handoff controller on an FPGA. The tools used are: MATLAB 7.6.0 for designing FIS and Xilinx 9.2i for FPGA implementation.