5G Cellular Networks with Relaxed Synchronization: Waveform Comparison and New Results

被引：2
作者：
Dore, Jean-Baptiste [1 ]
Gerzaguet, Robin [1 ]
Ktenas, Dimitri [1 ]
机构：
[1] CEA Leti Minatec, 17 Rue Martyrs, F-38054 Grenoble 9, France
来源：
2016 IEEE 83RD VEHICULAR TECHNOLOGY CONFERENCE (VTC SPRING) | 2016年
关键词：
OFDM; UFMC; FBMC; bit loading; Cellular Networks; 5G; SYSTEMS;
D O I：
10.1109/VTCSpring.2016.7503972
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
5G will have to cope with a high degree of heterogeneity in terms of services and requirements. Flexible and efficient use of all available spectrums for different network deployment scenarios is one challenge for the future 5G. To maximize spectrum efficiency, the 5G air interface technology will also need to be flexible and capable of mapping various services to the best suitable combinations of frequency and time resources. In this work, we study and fairly compare the performance of different waveforms (UFMC, FBMC, and legacy LTE waveforms) in cellular networks with relaxed synchronization. First, a unified frame structure is discussed to introduce the context. Then we compare the robustness of the waveform contenders in the envisaged scenario. Based on these results, a bit loading algorithm is proposed to cope with the non-uniform distribution of the interference across the carriers in order to increase the spectral efficiency.
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页数：5
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