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OTFS on Overspread Doubly Selective Channel
《China Communications》2024年第11期205-215,共11页Qing Hua Liu Yun Shi Xiayang Yu Hua Ji Fei Cui Yinming 
supported by National Natural Science Foundation of China(grant number 62071504);State Key Program of National Natural Science Foundation of China(grant numbers 62192712,62192711);Project of Science and Technology in Henan Province(grant numbers 222102210317,232102210078);Doctoral Research Foundation of Zhengzhou University of Light Industry(grant number 2021BSJJ030);Special Projects in Key Fields for General Universities of Guangdong Province(grant num 2021ZDZX1056)。
The orthogonal time frequency space(OTFS)modulation proposed in recent years is considered to have superior performance than orthogonal frequency division multiplexing(OFDM)for the doubly selective(DS)channels.The wor...
关键词：delay-Doppler domain doubly selective channel OTFS overspread underwater acoustic communications 
UAMP-Based Delay-Doppler Channel Estimation for OTFS Systems
《China Communications》2024年第10期1-15,共15页Li Zhongjie Yuan Weijie Guo Qinghua Wu Nan Zhang Ji 
supported by the Key Scientific Research Project in Colleges and Universities of Henan Province of China(Grant Nos.21A510003);Science and the Key Science and Technology Research Project of Henan Province of China(Grant Nos.222102210053)。
Orthogonal time frequency space(OTFS)technique, which modulates data symbols in the delayDoppler(DD) domain, presents a potential solution for supporting reliable information transmission in highmobility vehicular net...
关键词：channel estimation hidden Markov model(HMM) orthogonal time frequency space(OTFS) unitary approximate message passing(UAMP) 
UAMP-Based Delay-Doppler Channel Estimation for OTFS Systems被引量：4
《China Communications》2023年第10期70-84,共15页Zhongjie Li Weijie Yuan Qinghua Guo Nan Wu Ji Zhang 
supported by the Key Scientific Research Project in Colleges and Universities of Henan Province of China(Grant Nos.21A510003);Science and the Key Science and Technology Research Project of Henan Province of China(Grant Nos.222102210053).
Orthogonal time frequency space(OTFS)technique,which modulates data symbols in the delay-Doppler(DD)domain,presents a potential solution for supporting reliable information transmission in highmobility vehicular netwo...
关键词：orthogonal time frequency space(OTFS) channel estimation hidden Markov model(HMM) unitary approximate message passing(UAMP) 
Radar Sensing via OTFS Signaling被引量：2
《China Communications》2023年第9期34-45,共12页Kecheng Zhang Zhongjie Li Weijie Yuan Yunlong Cai Feifei Gao 
By multiplexing information symbols in the delay-Doppler(DD)domain,orthogonal time frequency space(OTFS)is a promising candidate for future wireless communication in high-mobility scenarios.In addition to the superior...
关键词：OTFS radar sensing delay-Doppler(DD)domain fractional delay and Doppler 
New Delay Doppler Communication Paradigm in 6G Era:A Survey of Orthogonal Time Frequency Space(OTFS)被引量：5
《China Communications》2023年第6期1-25,共25页Weijie Yuan Shuangyang Li Zhiqiang Wei Yuanhao Cui Jiamo Jiang Haijun Zhang Pingzhi Fan 
supported in part by National Natural Science Foundation of China under Grant 62101232;in part by Guangdong Provincial Natural Science Foundation under Grant 2022A1515011257;in part by Shenzhen Science and Technology Program under Grant JCYJ20220530114412029。
In the 6G era,Space-Air-Ground Integrated Network(SAGIN)are anticipated to deliver global coverage,necessitating support for a diverse array of emerging applications in high-mobility,hostile environments.Under such co...
关键词：OTFS 6G delay-Doppler(DD)domain 
Channel Estimation for OTFS System over Doubly Spread Sparse Acoustic Channels被引量：5
《China Communications》2023年第1期50-65,共16页Yang Zhang Qunfei Zhang Chengbing He Chao Long 
supported by National Natural Science Foundation of China(No.62071383)。
This paper addresses sparse channels estimation problem for the generalized linear models(GLM)in the orthogonal time frequency space(OTFS)underwater acoustic(UWA)system.OTFS works in the delay-Doppler domain,where tim...
关键词：OTFS doubly spread UWA channel delay-Doppler domain GAMP 
Intelligent Blind Source Separation Technology Based on OTFS Modulation for LEO Satellite Communication被引量：4
《China Communications》2022年第7期89-99,共11页Chengjie Li Lidong Zhu Cheng Guo Tao Liu Zhen Zhang 
fully supported by Natural Science Foundation of China Project (61871422)(62171390);Science and Technology Program of Sichuan Province (2020YFH0071);the Fundamental Research Funds for the Central Universities of Southwest Minzu University (ZYN2022032)
In LEO(Low Earth Orbit)satellite communication system,the orbit height of the satellite is low,the transmission delay is short,the path loss is small,and the frequency multiplexing is more effective.However,it is an u...
关键词：LEO Doppler effect Delay-Doppler domain OTFS DBSCAN clustering algorithm 
Design and Analysis of Spatial Modulation Based Orthogonal Time Frequency Space System被引量：4
《China Communications》2021年第8期209-223,共15页Yingchao Yang Zhiquan Bai Ke Pang Piming Ma Haixia Zhang Xinghai Yang Dongfeng Yuan 
in part by the National Natural Science Foundation of China under Grant 61771291,Grant 61671278;in part by the Key Research and Development Project of Shandong Province under Grant 2018GGX101009,Grant 2019TSLH0202,Grant 2020CXGC010109;in part by the National Nature Science Foundation of China for Excellent Young Scholars under Grant 61622111;in part by the Project of International Cooperation and Exchanges NSFC under Grant 61860206005.
In this paper,we design a spatial modulation based orthogonal time frequency space(SMOTFS)system to achieve improved transmission reliability and meet the high transmission rate and highspeed demands of future mobile ...
关键词：orthogonal time frequency space(OTFS) spatial modulation based OTFS(SM-OTFS) delay-Doppler domain average symbol error rate(ASER) average bit error rate(ABER) 
An Ant Colony Algorithm Based on Cross-Layer Design for Routing and Wavelength Assignment in Optical Satellite Networks被引量：17
《China Communications》2017年第8期63-75,共13页Guoli Wen Qi Zhang Houtian Wang Qinghua Tian Ying Tao 
supported by the National Natural Science Foundation of China(No.61675033,61575026,61675233);National High Technical Research and Development Program of China(No.2015AA015504)
This paper introduces an ant colony routing and wavelength assignment algorithm based on cross-layer design(CL-ACRWA),which can overcome the adverse effects of Doppler wavelength shift on data transmission in optical ...
关键词：optical satellite network routing and wavelength assignment ant colony optimization cross-layer design Doppler wavelength shift 
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