Single-Input-Single-Output System with Interference-Unaware Time-Based Receive Transformation under Cochannel Interference and Intersymbol Interference

In this paper, we propose the interference-unaware time-based receive transformation (IUTRT), which can employ the time diversity provided by cochannel interferences (CCI) and intersymbol interference (ISI) in the single-input-single-output (SISO) system. We show that IUTRT can completely eliminate the effect of CCI and the inter-frame ISI (between different data frames) so that the time diversity provided by the intra-frame ISI (within the same data frame) can maximize the achievable rate. We also show that the achievable rate of the SISO system with IUTRT can be larger than the CCI-free and ISI-free SISO channel capacity and this advantage increases with the symbol rate and/or the number of symbols per frame.