| MC-NOMA增强型反向散射网络中的谱能效率均衡优化 |
| |
| 引用本文： | 李兰花,黄晓霞.MC-NOMA增强型反向散射网络中的谱能效率均衡优化[J].系统工程与电子技术,2022,44(2):651-661. |
| |
| 作者姓名： | 李兰花 黄晓霞 |
| |
| 作者单位： | 1. 中国科学院深圳先进技术研究院, 广东 深圳 5180552. 中国科学院大学深圳先进技术学院, 广东 深圳 5180553. 中山大学电子与通信工程学院, 广东 广州 510275 |
| |
| 基金项目： | 国家重点研发计划(2020YFB1806204);国家自然科学基金(U1501255);广东省特支计划科技创新青年拔尖人才(2016TQ03X279);中山大学中央高校基本科研业务费专项资金资助课题。 |
| |
| 摘 要： | 环境信号的不确定性导致不可预测的谱能机会.传输机会和能源供应的缺乏给反向散射通信网络的多址接入设计带来了极大的挑战.本文针对多载波非正交多址接入(multicarrier non-orthogonal multiple ac-cess,MC-NOMA)增强型反向散射网络,提出了一种分阶段优化算法实现均衡调控下的谱能效率...
|
| 关 键 词： | 频谱效率 能效 多载波非正交多址接入 反向散射通信 |
| 收稿时间： | 2021-02-22 |
Spectrum and energy efficiency tradeoff in MC-NOMA enhanced backscatter networks |
| |
| LI Lanhua,HUANG Xiaoxia.Spectrum and energy efficiency tradeoff in MC-NOMA enhanced backscatter networks[J].System Engineering and Electronics,2022,44(2):651-661. |
| |
| Authors: | LI Lanhua HUANG Xiaoxia |
| |
| Institution: | 1. Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China2. Shenzhen College of Advanced Technology, University of Chinese Academy of Sciences, Shenzhen 518055, China3. School of Electronics and Communication Engineering, SunYat-sen University, Guangzhou 510275, China |
| |
| Abstract: | The nondeterministic nature of ambient signals results in unpredictable spectrum and energy opportunities.The shortage of transmission opportunities and energy supply brings a great challenge in designing the multiple access scheme in backscatter communication networks.A phased optimization algorithm is proposed to maximize the balanced spectrum and energy efficiency for the multicarrier non-orthogonal multiple access(MC-NOMA)enhanced backscatter networks.However,the formulated problem is non-convex,which is computationally difficult to solve.Hence,the optimization problem is further divided into two sub-problems,i.e.the subcarrier allocation and the reflection coefficient optimization.Based on the Gale-Shapley matching theory,a many-to-one matching algorithm is proposed to obtain the optimal subcarrier allocation.Then,the reflection coefficient optimization is solved with the convex optimization theory.The simulation results show that the spectrum and energy efficiency can be significantly improved by the proposed optimization scheme,compared to the dynamic MC-NOMA scheme(D-NOMA)and the orthogonal multiple access scheme(OMA). |
| |
| Keywords: | spectrum efficiency energy efficiency multicarrier non-orthogonal multiple access(MC-NOMA) backscatter communication |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《系统工程与电子技术》浏览原始摘要信息 |
| 点击此处可从《系统工程与电子技术》下载免费的PDF全文 |
