Computer Science ›› 2019, Vol. 46 ›› Issue (7): 56-60.doi: 10.11896/j.issn.1002-137X.2019.07.008

• Network & Communication • Previous Articles     Next Articles

Enhancement Method of Throughput in Ultra-dense Network Based on Hierarchical Multi-hop Physical Layer Network Coding

JI Bao-feng1,2,3,WANG Yi-dan1,XING Bing-bing1,LI Yu-qi1,GAO Hong-feng1,HAN Cong-cheng2   

  1. (College of Information Engineering,Henan University of Science and Technology,Luoyang,Henan 471023,China)1
    (Key Laboratory of Middle Atmosphere and Global Environment Observation (LAGEO),Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029,China)2
    (School of Aeronautics and Astronautics,University of Electronic Science and Technology of China,Chengdu 611731,China)3
  • Received:2018-06-20 Online:2019-07-15 Published:2019-07-15

Abstract: The ultra-dense network enhances the reuse of space through the dense deployment of small cells,which is an effective solution to solve the data flow by 1 000 times and the user experience rate of 10~100 times in the future 5G.However,the interference problem caused by small-area intensive deployment and the multi-hop transmission caused by the small coverage of small base stations will reduce the network capacity and user experience.Therefore,in order to consider the problem of “overlay” and “capacity” of ultra-dense networks in 5G,a throughput enhancement method based on hierarchical multi-hop physical layer network coding was proposed.By using the heterogeneous hierarchical feature of multi-node and combining with the high spectral efficiency characteristics of multi-hop physical layer network coding,the throughput in ultra-dense network can be enhanced effectively,the time slot from source node to the terminal node can be saved and the interference of system can be reduced without the need for the direct link from source node to terminal node in the case.Finally,this paper verified the validity and correctness of the proposed scheme and the system performance was improved effectively compared with the traditional scheme.

Key words: Bit error rate, Hierarchical network, Multi-hop transmission, Physical layer network coding, Throughput, Ultra-dense network

CLC Number: 

  • TN925
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