Adaptive equalization of digital communication channels using evolvable hardware

Abstract

This paper investigates the application of function-level Evolvable Hardware (EHW) to the adaptive equalization of digital communication channel. EHW is hardware that is built on programmable logic devices such as field programmable gate arrays. Its architecture can be reconfigured by using genetic learning to adapt to new, unknown environments in real time. We propose an EHW-based adaptive equalizer whose adaptive capability and fast processing speed make possible highspeed channel equalization. Simulation results show that the EHW-based equalizers have superior performance to traditional equalizers based on the linear transversal filter.