典型文献
A Novel Orthogonal LoRa Multiple Access Algorithm for Satellite Internet of Things
文献摘要：
In recent years,LoRa has been extensively researched in the satellite Internet of Things(IoT).However,the multiple access technology of LoRa is still one of the bottlenecks of satellite IoT.To improve the multiple access performance of LoRa satellite IoT,based on the orthogonality of LoRa symbols in the fractional domain,this paper proposes a low complex-ity Orthogonal LoRa Multiple Access(OLMA)algo-rithm for multiple LoRa users occupying the same fre-quency bandwidth.The algorithm introduces the ad-dress code to divide the fractional bandwidth into mul-tiple parts,and the OLMA users with different address codes occupy different parts to transmit the informa-tion code,thus avoiding mutual interference caused by collisions in the same frequency bandwidth.The mul-tiple access capability of OLMA can be flexibly con-figured only by simply adjusting the length of the ad-dress code according to the actual application require-ments of data transmission.Theoretical analysis and simulation results show that the OLMA algorithm can greatly improve the multiple access capability and the total transmission bit rate of LoRa IoT without chang-ing the existing LoRa modulation parameters and pro-cess.
文献关键词：
中图分类号：
作者姓名：
Chengwen Zhang;Liankai Wang;Libin Jiao;Shipeng Wang;Jun Shi;Jia Yue
作者机构：
School of Electronics and Information Engineering,Harbin Institute of Technology,Harbin 150080,China;Science and Technology on Communication Networks Laboratory,Shijiazhuang 050081,China;Key Laboratory of Police Wireless Digital Communication,Ministry of Public Security,Harbin 150001,China
文献出处：
引用格式：
[1]Chengwen Zhang;Liankai Wang;Libin Jiao;Shipeng Wang;Jun Shi;Jia Yue-.A Novel Orthogonal LoRa Multiple Access Algorithm for Satellite Internet of Things)[J].中国通信（英文版）,2022(03):279-289
A类：
OLMA
B类：
Novel,Orthogonal,LoRa,Multiple,Access,Algorithm,Satellite,Internet,Things,recent,years,has,been,extensively,researched,satellite,IoT,However,multiple,access,technology,still,one,bottlenecks,To,improve,performance,orthogonality,symbols,fractional,domain,this,paper,proposes,low,complex,users,occupying,same,bandwidth,algorithm,introduces,divide,into,parts,different,address,codes,transmit,informa,thus,avoiding,mutual,interference,caused,by,collisions,frequency,capability,can,flexibly,con,figured,only,simply,adjusting,length,according,actual,application,require,ments,data,transmission,Theoretical,analysis,simulation,results,show,that,greatly,total,bit,rate,without,chang,existing,modulation,parameters
AB值：
0.488851
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