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Common CP-OFDM Transceiver Design for Low-Complexity Frequency Domain Equalization
IEEE Wireless Communications Letters ( IF 6.3 ) Pub Date : 2022-04-13 , DOI: 10.1109/lwc.2022.3167134
Salah Eddine Zegrar 1 , Huseyin Arslan 1
Affiliation  

Common cyclic prefix-orthogonal frequency-division multiplexing (CCP-OFDM) groups multiple OFDM symbols and uses one CP to protect them in slow time-variant channels. However, due to this particular design of CCP-OFDM systems, complex time-domain estimation algorithms are used to estimate and equalize the channel, such as maximum likelihood (ML) estimators. In this letter, we propose a novel CCP-OFDM transceiver design enabling low-complexity frequency-domain channel estimation and equalization. Simulations under frequency selective channels have validated the effectiveness of the proposed scheme in terms of computational complexity, normalized mean squared error (NMSE), and bit error rate (BER).

中文翻译:

用于低复杂度频域均衡的通用 CP-OFDM 收发器设计

公共循环前缀正交频分复用 (CCP-OFDM) 将多个 OFDM 符号分组并使用一个 CP 在慢速时变信道中保护它们。然而,由于 CCP-OFDM 系统的这种特殊设计,复杂的时域估计算法用于估计和均衡信道,例如最大似然 (ML) 估计器。在这封信中,我们提出了一种新颖的 CCP-OFDM 收发器设计,可实现低复杂度的频域信道估计和均衡。频率选择信道下的仿真验证了所提出方案在计算复杂度、归一化均方误差 (NMSE) 和误码率 (BER) 方面的有效性。
更新日期:2022-04-13
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