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In this paper, we propose a simple and efficient soft- in soft-out (SISO) equalization for block Markov superposition transmission (BMST) in the coded OFDM system (called BMST-OFDM) over high-mobility wireless communication channels. In the BMST-OFDM system, the proposed SISO equalizer can exchange soft messages with the soft demapper and the BMST decoder in an iterative fashion. Simulation results...
This paper is concerned with the coded orthogonal frequency division multiplexing (OFDM) with index modulation (IM) for highly mobile wireless communication based on block Markov superposition transmission (BMST). In the OFDM-IM scheme, the information bits are not only mapped into the conventional two-dimensional signal points but also into the indices of the subcarriers. For the coded IM system,...
While playing an important role in radio frequency (RF)-based wireless systems, multiple-input multiple-output (MIMO) techniques have also found viable applications in visible light communication (VLC) systems. However, how to effectively reduce the inherent strong correlations between optical MIMO channels remains a typical issue for VLC. In this paper, we propose an MIMO-aided multiuser optical...
The focus of this paper is coded orthogonal frequency division multiplexing (OFDM) system for high-speed railway wireless communication based on block Markov superposition transmission (BMST). The effect of Doppler spreading destroys the orthogonality among subcarriers, resulting in intercarrier interference (ICI) in the OFDM systems. In order to mitigate the ICI and get the soft information easily,...
To verify the performance of communication systems, software and hardware prototypes are widely used. However, with the increasing complexity of communication systems, software prototypes cannot meet the needs of real-time operations while hardware prototypes are expensive and time-consuming to develop. Nowadays, Graphics Processing Unit (GPU) shows great prospect as a coprocessor and has the capability...
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