A Low Complexity Multi-Carrier System Over Doubly Selective Channels Using Virtual-Trajectories Receiver
A Low Complexity Multi-Carrier System Over Doubly Selective Channels Using Virtual-Trajectories Receiver
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DOI：
10.1109/twc.2016.2555305
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发表时间：
2016-08
影响因子：
10.4
通讯作者：
F. Peña-Campos;R. Parra-Michel;V. Kontorovich
中科院分区：
文献类型：
--
作者：
F. Peña-Campos;R. Parra-Michel;V. Kontorovich
当前的通信标准被设计为在频率或时间选择性下操作。然而，更高的数据速率的需求不断上升，结合移动性的收发器，导致了在双选择性信道下传输的必要性。在这些信道中，单载波和多载波方法都发现高干扰条件，其中在频谱效率和误比特率方面的性能较低。最先进的解决方案涉及高复杂性和/或低兼容性，使其不可行。本文提出了一种基于虚拟信道分解的改进正交频分复用（OFDM）通信系统。该系统与标准OFDM发射机完全兼容，并保留了标准OFDM接收机的几个模块。这种新颖的系统大大超过了目前的方法的性能，同时需要低的计算复杂度。
Current communication standards are designed to operate under either frequency or time selectivity. However, the rising demand of higher data rates combined with the mobility of the transceivers has led to the necessity of transmitting under doubly selective channels. In these channels, both single-carrier and multi-carrier approaches find high interference conditions, where the performance in terms of spectral efficiency and bit error rate is low. The state-of-the-art solutions involve high complexity and/or low compatibility making them infeasible. In this paper, a modified orthogonal frequency-division multiplexing (OFDM) communication system based on the virtual decomposition of the channel is proposed. The system is fully compatible with the standard OFDM transmitters and maintains several blocks of the standard OFDM receivers. This novel system substantially surpasses the performance of current approaches while requiring low computational complexity.