The Extended Hybrid Carrier-Based Multiple Access Technology for High Mobility Scenarios  

作　　者：Ge Song Xiaojie Fang Xuejun Sha 

机构地区：[1]School of Electronics and Information Engineering,Harbin Institute of Technology,Harbin 150001,China

出　　处：《China Communications》2024年第1期53-68,共16页中国通信（英文版）

基　　金：supported in part by the National Natural Science Foundation of China under Grant U23A20278;in part by the National Natural Science Foundation of China under Grant 62171151;in part by the Fundamental Research Funds for the Central Universities under Grant HIT.OCEF.2021012。

摘　　要：The hybrid carrier(HC)system rooted in the carrier fusion concept is gradually garnering attention.In this paper,we study the extended hybrid carrier(EHC)multiple access scheme to ensure reliable wireless communication.By employing the EHC modulation,a power layered multiplexing framework is realized,which exhibits enhanced interference suppression capability owing to the more uniform energy distribution design.The implementation method and advantage mechanism are explicated respectively for the uplink and downlink,and the performance analysis under varying channel conditions is provided.In addition,considering the connectivity demand,we explore the non-orthogonal multiple access(NOMA)method of the EHC system and develop the EHC sparse code multiple access scheme.The proposed scheme melds the energy spread superiority of EHC with the access capacity of NOMA,facilitating superior support for massive connectivity in high mobility environments.Simulation results have verified the feasibility and advantages of the proposed scheme.Compared with existing HC multiple access schemes,the proposed scheme exhibits robust bit error rate performance and can better guarantee multiple access performance in complex scenarios of nextgeneration communications.

关 键 词：extended hybrid carrier system high mo-Received:Jun.09 2023 Revised:Nov.20 2023 Editor:Yuanwei Liu bility communications multiple access 

分 类 号：TN929.5[电子电信—通信与信息系统]