Analysis of Discrete-Time MIMO OFDM-Based Orthogonal Time Frequency Space Modulation
作者： Arman Farhang , Mingyue Ji , Behrouz Farhang-Boroujeny , Ahmad RezazadehReyhani , Rong Rong Chen
DOI:
关键词: Algorithm 、 Orthogonal frequency-division multiplexing 、 Modulation 、 Time domain 、 Diversity scheme 、 Cyclic prefix 、 MIMO-OFDM 、 Signal processing 、 Communication channel 、 MIMO 、 Computer science 、 Fading
摘要: Orthogonal Time Frequency Space (OTFS) is a novel modulation scheme designed in the Doppler-delay domain to fully exploit time and frequency diversity of general time-varying channels. In this paper, we present discrete-time analysis OFDM-based OTFS transceiver with concise vectorized input-output relationship that clearly characterizes contribution each underlying signal processing block such systems. When adopting cyclic prefix domain, our reveals proposed MIMO OFDM systems have same ergodic capacity despite well-known fact former has great advantages low-complexity receiver design for high Doppler The formulation applicable fast fading channels arbitrary window functions. It also enables practical which benefits.
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