[PDF][PDF] 基于非正交多址接入中继通信系统的功率优化

黄容兰, 刘云, 李啟尚, 唐文 - 电子与信息学报, 2019 - jeit.ac.cn
针对基于非正交多址接入(NOMA) 技术的中继通信系统, 在兼顾系统性能与计算复杂度的基础上,
该文提出一种结合统计信道信息(S-CSI) 和瞬时信道信息(I-CSI) 的混合功率分配策略(H-PAS) …

Outage performance analysis of underlay cognitive cooperative NOMA network

H Huang, Y Shi, L Liang - Third International Conference on …, 2022 - spiedigitallibrary.org
In this thesis, we study the cognitive cooperative non-orthogonal multiple access network
with interference power constraint in underlay mode, where a primary receiver is situated at …

Optimal power allocation for CRN-NOMA systems with adaptive transmit power

R Alhamad, H Boujemâa - Signal, Image and Video Processing, 2020 - Springer
In this paper, we derive the throughput of non-orthogonal multiple access NOMA with
adaptive transmit power for cognitive radio networks (CRN). The secondary source and …

Cooperative underlay cognitive radio assisted NOMA: secondary network improvement and outage performance

DT Do, CB Le, AT Le - … Computing Electronics and Control), 2019 - telkomnika.uad.ac.id
In this paper, a downlink scenario of a non-orthogonal multiple access (NOMA) scheme with
power constraint via spectrum sensing is considered. Such network provides improved …

Performance Enhancement for Multihop Cognitive DF and AF Relaying Protocols under Joint Impact of Interference and Hardware Noises: NOMA for Primary Network …

TT Duy, PTD Ngoc, PT Tran - Wireless Communications and …, 2021 - Wiley Online Library
In this paper, we propose and evaluate performance of multihop multipath underlay
cognitive radio networks. In a primary network, an uplink nonorthogonal multiple access …

[PDF][PDF] 认知无线电网络的物理层安全研究及其鲁棒性设计

陈涛, 余华, 韦岗 - 电子与信息学报, 2012 - edit.jeit.ac.cn
该文从用户服务质量(QoS) 的角度研究了多输入单输出(MISO) 认知无线电网络的物理层安全
问题. 通过在次用户的发送信号中加入适当功率的人为噪声, 能够有效地提高网络的物理层安全 …

共存式频谱共享认知中继网络的中断性能研究

洪浩, 肖立民, 张焱, 王京 - 电波科学学报, 2013 - cqvip.com
在共存式频谱共享的认知中继网络中, 为了保证主用户的通信质量, 会严格限制次用户的发送
功率, 使次用户的性能很难得到保证. 中断概率是评估次用户性能的最重要参数之一 …

Outage Performance Analysis and Power Allocation Research of CR-NOMA System on Coordinated Direct and FD Relay Transmission

KD bin shen Hui linJIANG - Journal of Beijing University of Posts …, 2022 - journal.bupt.edu.cn
Non-orthogonal multiple access (NOMA) is one of the key candidate technologies of 5G
network. The CR-NOMA system formed by the combination of cognitive radio (CR) …

联合干扰功率限制下的认知中继网络性能分析

黄仰超, 褚鹏, 朱锐, 孟庆微 - 空军工程大学学报: 自然科学版, 2016 - cqvip.com
频谱共享的Underlay 认知中继网络中, 为了保证主用户的可靠通信, 要求次用户网络中源节点及
中继节点的发射功率必须满足主用户接收端干扰功率的限制. 基于主用户峰值干扰功率和平均 …

异构认知网络中基于非随机接入方式的对等接入策略分析

韩鹏, 田华, 谢威 - 应用科学学报, 2012 - jas.shu.edu.cn
针对无线网络环境中的异构网络提出了一种基于非随机接入方式的频谱接入策略——
对等接入策略, 其中两个异构网络关系是平等的, 网络中的授权用户具有认知功能 …