A Study of Frequency-Domain Signal Detection for Single-Carrier Transmission

Date Added: Aug 2009
Format: PDF

One-tap Frequency-Domain Equalization (FDE) can significantly improve the Bit Error Rate (BER) performance of Single-Carrier (SC) transmission in a frequency-selective fading channel. However, a big performance gap from the theoretical lower bound still exists due to the presence of residual Inter-Symbol Interference (ISI) after FDE. In this paper, the authors point out that the frequency-domain received SC signal can be represented similar to the Multiple-Input Multiple-Output (MIMO) multiplexing case and then, they propose a new frequency-domain block signal detection, which combines FDE with MIMO signal detection.