方法对比
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| ZF/MMSE Equalization× | 正交频分复用 (OFDM)× | |
|---|---|---|
| 领域 | 电信 | 电信 |
| 方法族 | Process / pipeline | Process / pipeline |
| 起源年份≠ | 1974 | 1971 |
| 提出者≠ | Saleh Mansour and Paul Zervos | Weinstein and Ebert |
| 类型≠ | linear equalization algorithm | multicarrier modulation scheme |
| 开创性文献≠ | Proakis, J. G. (2001). Digital Communications (4th ed.). McGraw-Hill. link ↗ | Weinstein, S. B., & Ebert, P. M. (1971). Data transmission by frequency-division multiplexing using the discrete Fourier transform. IEEE Transactions on Communication Technology, 19(5), 628-634. DOI ↗ |
| 别名≠ | channel equalization, interference cancellation | multicarrier modulation |
| 相关 | 5 | 5 |
| 摘要≠ | Zero-Forcing (ZF) and Minimum Mean-Square Error (MMSE) equalization are fundamental linear receiver algorithms for combating intersymbol interference in dispersive channels. Developed in the context of data transmission theory, these methods form the basis of modern channel equalization in wireless and wired systems. While ZF aggressively cancels interference, MMSE balances interference suppression with noise enhancement, making it the optimal linear solution under Gaussian noise. | OFDM is a multicarrier modulation technique that divides a wideband channel into many narrowband orthogonal subcarriers. Introduced by Weinstein and Ebert in 1971, it exploits the duality between time and frequency domains to efficiently use spectrum while mitigating intersymbol interference in frequency-selective channels. OFDM is now the standard for high-speed wireless systems including WiFi, cellular LTE, and digital broadcasting. |
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