Fast DGT-Based Receivers for GFDM in Broadband Channels

被引：28

作者：

Wei, Peng ^{[1
]}

Xia, Xiang-Gen ^{[2
,3
]}

Xiao, Yue ^{[1
]}

Li, Shaoqian ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Natl Key Lab Sci & Technol Commun, Chengdu 611731, Peoples R China

[2] Shenzhen Univ, Coll Informat Engn, Shenzhen, Peoples R China

[3] Univ Delaware, Dept Elect & Comp Engn, Newark, DE 19716 USA

来源：

IEEE TRANSACTIONS ON COMMUNICATIONS | 2016年 / 64卷 / 10期

关键词：

Discrete Gabor transform (DGT); generalized frequency division multiplexing (GFDM); inter carrier interference (ICI); inter symbol interference (ISI); GABOR; SYSTEMS;

D O I：

10.1109/TCOMM.2016.2598568

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：

Generalized frequency division multiplexing (GFDM) is a recent multicarrier 5G waveform candidate with the flexibility of pulse shaping filters. However, the flexibility of choosing a pulse shaping filter may result in intercarrier interference (ICI) and intersymbol interference (ISI), which becomes more severe in a broadband channel. In order to eliminate the ISI and ICI, based on discrete Gabor transform (DGT), in this paper, a transmit GFDM signal is first treated as an inverse DGT, and then a frequency-domain DGT is formulated to recover (as a receiver) the GFDM signal. Furthermore, to reduce the complexity, a suboptimal frequency-domain DGT called local DGT is developed. Some analyses are also given for the proposed DGT-based receivers.

引用

页码：4331 / 4345

页数：15

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