Problem
Research questions and friction points this paper is trying to address.
FBMC/QAM
interference
spectral efficiency
carrier frequency offset
full-duplex
Technical Supplement Report on Full-Duplex FBMC/QAM MIMO Systems: Transceiver Design and Optimization
🤖 AI Summary
This study addresses the compounded interference caused by residual self-interference and carrier frequency offset in full-duplex FBMC/QAM multi-user MISO systems. It presents the first systematic end-to-end effective channel model, elucidating the interference structure of FBMC/QAM under full-duplex MIMO configurations, and leverages the Balian–Low theorem to compare performance limits across modulation schemes. The work proposes an online sum-rate optimization framework based on stochastic successive convex approximation, integrating closed-form power updates, MRT/Zero-Forcing precoding, and PHYDYAS prototype filters (Type-I/II) to substantially enhance spectral efficiency and link robustness. Simulations demonstrate that, in the presence of residual frequency offset, FBMC/QAM achieves significantly lower bit error rates and higher network throughput compared to CP-OFDM.
📝 Abstract
This technical report presents the design and analysis of filter bank multicarrier (FBMC)/QAM multi-user MISO systems. We describe the complete uplink and downlink signal processing chains and characterize the end-to-end effective channel, including inter-carrier interference, inter-symbol interference, intrinsic interference, and residual self-interference. We compare FBMC/QAM with CP-OFDM and FBMC/OQAM through the lens of the Balian-Low theorem, and analyze prototype filter choices (PHYDYAS, Type-I, and Type-II), including the interference power breakdown under MRT and ZF precoding. Furthermore, we present an online stochastic successive convex approximation framework for ergodic sum-rate maximization with closed-form power updates, and contrast it with offline Monte Carlo-based approaches. Simulation results demonstrate the BER and network spectral efficiency advantages of FBMC/QAM over CP-OFDM under residual carrier frequency offset.
Innovation
Methods, ideas, or system contributions that make the work stand out.
FBMC/QAM
full-duplex MIMO
stochastic successive convex approximation
prototype filter design
residual self-interference
🔎 Similar Papers
No similar papers found.
