Reconfigurable design of variable bandwidth linear phase FIR PCLS filter forwireless communication systems

Abstract

This paper proposes a reconfiguration design of variable bandwidth symmetric/anti-symmetric finite impulse response (FIR) single band peak constrained least squares (PCLS) filters for wireless communication systems. When the bandwidth of the filter changes, a new set of filter coefficients based on the old set of filter coefficients is derived via the method of bisection. Since the algorithm is very efficient, the new set of filter coefficients can be obtained in real time. Also, the new set of filter coefficients can be arbitrarily close to the globally optimal solution of the new PCLS optimization problem.