Impact of Channel Estimation Error on Analog SC-FDE using STTD Combined with Receive Antenna Diversity

Abstract In order to improve performance of analog signal transmission, we recently proposed a novel analog single-carrier transmission with frequency-domain equalization (analog SC-FDE). Additionally, we showed that a joint use of space-time transmit diversity (STTD) and receive antenna diversity significantly improves performance of our proposed analog SC-FDE under a perfect knowledge of channel state information at the receiver. In this paper, the well-known cyclic delay pilot channel estimation (CDP-CE) is considered and the impact of channel estimation error is studied for an application of analog SC-FDE to, as an example, radio broadcasting. It is shown, by computer simulation, that CDP-CE keeps the normalized mean square error (NMSE) performance similar to that under the perfect knowledge of channel state information even in a very high mobility environment.