Asynchronous multi-user uplink transmission with generalized frequency division multiplexing
Asynchronous multi-user uplink transmission with generalized frequency division multiplexing
复制标题
DOI：
10.1109/iccw.2015.7247519
复制
发表时间：
2015-06
期刊：
影响因子：
--
通讯作者：
Maximilian Matthé;L. Mendes;G. Fettweis
中科院分区：
文献类型：
--
作者：
Maximilian Matthé;L. Mendes;G. Fettweis
本文研究了广义频分复用（GFDM）的上行链路的情况下，几个用户不完全同步，因为它出现在无线传感器网络（WSN）的适用性。我们比较的性能方面的用户间干扰（IUI）所造成的用户之间的时间和频率失调，其中物理层实现GFDM和OFDM。结果表明，IUI可以显着减少时，使用GFDM。此外，我们提出了一个数据辅助的相位误差估计和补偿算法，它是能够纠正残余的相位误差在接收机。
This paper investigates the applicability of generalized frequency division multiplexing (GFDM) for an uplink scenario where several users are not perfectly synchronized, as it appears in wireless sensor networks (WSN). We compare the performance in terms of inter-user interference (IUI) caused by time and frequency misalignments between users, where the physical layer is realized with GFDM and OFDM. It is shown that IUI can be significantly reduced when using GFDM. Furthermore, we propose a data-aided phase error estimation and compensation algorithm which is capable of correcting residual phase errors at the receiver.