Zero Tail Filter Bank Spread OFDM
Zero Tail Filter Bank Spread OFDM
复制标题
零尾滤波器组扩展 OFDM
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
H. Arslan
中科院分区：
文献类型：
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作者：
Mostafa Ibrahim;H. Arslan
为未来通信系统提出的波形旨在满足下一代5G应用的苛刻要求。提出了一种改进的零尾离散傅里叶变换扩展正交频分复用(ZTDFT-S-OFDM码)。提出的零尾滤波器组扩展正交频分复用(ZT-FB-S-OFDMIN)用滤波器组(FB)块代替离散傅立叶变换(DFT)块。由于非完美零尾的存在，使得传统系统的性能下降。该系统通过在零尾附近使用升余弦(RC)形脉冲来抑制零尾上的功率。提出了一种发射机和接收机的实现方案。结果表明，抑制零尾功率可以提高系统的误码率性能。此外，结果表明，峰值平均功率比(PAPR)和带外发射(OOBE)性能都有了额外的改善。
Waveforms proposed for future communication systems aim at fulfilling the demanding requirements of the next generation of 5G applications. In this paper, an enhancement over Zero Tail Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing (ZT DFT-S-OFDM) is proposed. The presented Zero Tail Filter Bank Spread OFDM (ZT FB-S-OFDM) replaces the discrete Fourier transform (DFT) block with a filter bank (FB) block. The performance of the conventional system is degraded due to the non-perfect zero-tails. The proposed system suppresses the power over the zero-tails by using raised cosine (RC) shaped pulses near the zero-tails. An implementation scheme for the transmitter and the receiver is proposed. It is shown that suppressing the power over the zero-tail enhances the system bit error rate (BER) performance. Furthermore, results show extra improvements in the peak-to-average power ratio (PAPR) and out-of-band emission (OOBE) performances.