A novel pilot-based frequency offset compensation method in MIMO-OFDM Systems

Ershadi, Elnaz; Bakhshi, Hamidreza

doi:10.1109/icias.2010.5716240

Cited by 1 publication

(1 citation statement)

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“…The CFO impact on the OFDM performance has been known for a long time from the first IEEE 802.11a OFDM systems. Many different solutions and schemes for CFO compensation have been proposed and studied for more than 25 years [3] [11]. In our paper, we will focus on the consideration of the additional CFO compensation block for slotby-slot signal processing in the time domain, which includes a combination of two relatively simple CFO estimation algorithms.…”

Section: Cyclic-prefix Based сFo Compensationmentioning

confidence: 99%

Performance Analysis of 256-QAM Demodulation for 5G NR Sidelink

Maltsev

Serunin²,

Pudeev³

et al. 2022

Frontiers in Artificial Intelligence and Applications

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Higher order modulations are the key elements to the throughput and spectral efficiency increase, especially important for the limited bandwidth scenarios. In this paper, we present a detailed analysis of the 256-QAM signal demodulation performance for the novel sidelink (SL) mode of the 5G NR communication systems. The performance is frequency offset (CFO). It was shown that the CFO has critical impact on the system performance, along with channel mobility. The simple and effective CFO studied in the non-stationary, frequency selective channel in the presence of the carrier compensation algorithm based on the slot-by-slot time-domain signal processing is proposed and investigated. Obtained simulation results have shown the feasibility of the 256-QAM modulation in applications to the main 3GPP sidelink scenarios and parameters, with the proposed CFO compensation method applied even in the case of significant user mobility.

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Section: Cyclic-prefix Based сFo Compensationmentioning

confidence: 99%