Sep 2026· IEEE International Symposium on Personal, Indoor and Mobile Radio Communications· pp. 1-6· 0 citations· 16 references
Abstract
This paper investigates filter bank multicarrier with quadrature amplitude modulation (FBMC/QAM) as a waveform candidate for multi-user multiple-input single-output communication. A transceiver design for the downlink transmission is developed, following which the signal-to-interference-plus-noise ratio is derived to quantify spectral efficiency (SE), accounting for filter-induced intrinsic interference, and multi-user interference. The SE performance of the proposed system is evaluated by separately filtering even and odd subcarrier symbols with nearly-orthogonal filters, which are constructed based on the PHYDYAS filter. Simulation findings demonstrate that the proposed FBMC/QAM system outperforms its orthogonal frequency-division multiplexing counterpart in terms of bit error rate and SE. Also, the impact of carrier frequency offset on the FBMC/QAM waveform is evaluated, highlighting its superior robustness to carrier asynchrony.
One of the new promising multicarrier waveform candidates beyond-OFDM wireless systems is Generalized Frequency Division Multiplexing (GFDM), which offers flexibility, enhanced spectral containment and low-latency transmission. In this work, the performance of a GFDM transceiver system using pilot-assisted LS channel e...
Rate-splitting sparse code multiple access (RS-SCMA) superimposes QAM-modulated common messages and SCMA-encoded private messages over the same resource elements. This paper analyzes the bit error rate (BER) performance of orthogonal frequency division multiplexing (OFDM)-based RS-SCMA in the presence of carrier freque...
Minerva Priyadarsini, Kuntal Deka, Zi-Long Liu et al.· 0 citations
The idea of the thermal noise modulation (TherMod) is utilizing two different noise variances to convey bit-0 and bit-1, respectively, which, compared to conventional deterministic carrier based modulation schemes, requires a much lower power consumption. To break through the performance bottleneck of the existing Ther...
Zhi-Cheng Li, Hong Shen, Zhou Yang et al.· IEEE Transactions on Communi...· 0 citations
As one of the novel waveforms recently proposed for future wireless communications, affine frequency division multiplexing (AFDM) is capable of combating the effects of Doppler shifts and its superiority over the widely used orthogonal frequency division multiplexing (OFDM) in high-mobility scenarios has been demonstra...
Ke Jiang, Jing-Xuan Wang, Qin Yi et al.· IEEE International Symposium...· 0 citations
High-frequency and broadband line-of-sight multiple-input multiple-output (LoS-MIMO) is a key solution for massive space-to-Earth data downlinks. However, in low Earth orbit (LEO) scenarios, it faces spatial rank deficiency from time-frequency coupling correlation and clock deviations from distributed oscillators. This...
Pei-Xin Zhang, Feng-Kui Gong, Guo Li et al.· 0 citations
Fifth-generation (5G) communication systems employ orthogonal demodulation reference signals to eliminate pilot contamination and user interference, resulting in a significant overhead for reserving resource elements in the time-frequency grid. 5G technologies rely on orthogonal frequency division multiplexing (OFDM) a...
Rahul Makkar, Divyang Rawal, Vijay Kumar Chakka et al.· IEEE International Symposium...· 0 citations
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