Latency time optimization for FIR and block transmit filters

Abstract

We address the problem of optimizing the latency time for transmit filters which can have FIR or block structure. When we allow the transmission system to have latency time, we gain an additional degree of freedom which can be exploited to improve the performance substantially. Contrary to the latency time optimization for FIR filters, the optimization for block transmit filters is very complex. We present a sub-optimum approach for block transmit filters which leads to results close to optimum but with low complexity.