Downlink network-coded multiple access with diverse power

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外文标题：Downlink network-coded multiple access with diverse power

外文摘要：Normally,in the downlink Network-Coded Multiple Access(NCMA)system,the same power is allocated to different users.However,equal power allocation is unsuitable for some scenarios,such as when user devices have different Quality of Service(QoS)requirements.Hence,we study the power allocation in the downlink NCMA system in this paper,and propose a downlink Network-Coded Multiple Access with Diverse Power(NCMA-DP),wherein different amounts of power are allocated to different users.In terms of the Bit Error Rate(BER)of the multi-user decoder,and the number of packets required to correctly decode the message,the performance of the user with more allocated power is greatly improved compared to the Conventional NCMA(NCMA-C).Meanwhile,the performance of the user with less allocated power is still much better than NCMA-C.Furthermore,the overall throughput of NCMA-DP is greatly improved compared to that of NCMA-C.The simulation results demonstrate the remarkable performance of the proposed NCMA-DP.

外文关键词：

Network-coded multiple accessPhysical-layer network codingMulti-user decoderPower allocationThroughputDownlink network

作者：

Bohao Cao、Zheng Xiang、Peng Ren、Qiao Li、Baoyi Xu

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作者单位：

School of Telecommunications Engineering Xidian University,Xi'an,Shaanxi,710071,China

关键词：

Network-coded multiple access Physical-layer network coding Multi-user decoder Power allocation Throughput Downlink network

出版年：

2024

DOI：

10.1016/j.dcan.2022.10.027

数字通信与网络(英文)

ISSN：

年,卷(期)：2024.10(4)