超5G帧的无扩展自适应发送器和接收器窗口
Extensionless Adaptive Transmitter and Receiver Windowing of Beyond 5G Frames
摘要:
计划更新的蜂窝通信代以允许在相邻频带中异步传输多个参数集(具有不同参数的波形),从而产生不可避免的相邻信道干扰。大多数关于窗口的先前工作假设为窗口保留额外的扩展,这不符合标准。至于是在发射机还是在接收机上应用窗口,没有人提出疑问。在这项工作中,我们提出了两个独立的算法,分别在发射机和接收机实现。这些算法估计每个资源元素(RE)的发射机和接收机窗口持续时间,目的是提高公平比例的网络吞吐量。在这样做的同时,我们仅利用在标准中定义的可用扩展,并提出标准兼容的算法,这些算法也不需要对对应物或控制信令进行任何修改。此外,计算高效的技术,适用于每RE发射机和接收机加窗的信号合成和分析,使用传统的循环前缀正交频分复用推导出和它们的计算复杂度进行了分析。最佳的窗口持续时间在任何一侧,以及过量的信号噪声比,子载波间隔和吞吐量增益的函数之间的spectrotemporal关系提供了在以前类似的技术进行了数值验证。
英文摘要:
Newer cellular communication generations are planned to allow asynchronous transmission of multiple numerologies (waveforms with different parameters) in adjacent bands, creating unavoidable adjacent channel interference. Most prior work on windowing assume additional extensions reserved for windowing, which does not comply with standards. Whether windowing should be applied at the transmitter or the receiver was not questioned. In this work, we propose two independent algorithms that are implemented at the transmitter and receiver, respectively. These algorithms estimate the transmitter and receiver windowing duration of each resource element (RE) with an aim to improve fair proportional network throughput. While doing so, we solely utilize the available extension that was defined in the standard and present standard-compliant algorithms that also do not require any modifications on the counterparts or control signaling. Furthermore, computationally efficient techniques to apply per-RE transmitter and receiver windowing to signals synthesized and analyzed using conventional cyclic prefix orthogonal frequency division multiplexing are derived and their computational complexities are analyzed. The spectrotemporal relations between optimum window durations at either side, as well as functions of the excess signal to noise ratios, the subcarrier spacings and the throughput gains provided over previous similar techniques are numerically verified.
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