| 分布式协同传输协议设计与系统实现 |
| |
| 引用本文： | 李思聪,熊俊,周宣含,赵海涛,魏急波.分布式协同传输协议设计与系统实现[J].信号处理,2021,37(9):1612-1622. |
| |
| 作者姓名： | 李思聪 熊俊 周宣含 赵海涛 魏急波 |
| |
| 作者单位： | 国防科技大学电子科学学院 |
| |
| 基金项目： | 国家自然科学基金资助项目（U19B2024，61601480） |
| |
| 摘 要： | 协同传输作为一种可靠通信技术，通过利用空间分集，能够克服无线通信收发双方经历的信道衰落、噪声干扰、路径损耗等，有效提升系统传输性能。目前有关协同通信技术的基础理论研究较多，但大多数理论研究并没有应用到实际的原理样机中，因此缺少实测数据作为支撑。本文首先设计实现了一种自适应分布式协同传输协议，该协议通过信道感知技术实时获取信道质量信息，自适应地选择协同节点和协同传输方式。通过将所设计的传输协议实现在自主研发的原理样机上，本文从误码率、丢包率和吞吐量三个性能指标上，分别测试了系统在室内、室外、地面、空中等应用场景下的实际传输性能。测试结果表明，相比于传统点对点直传方式，本文所提的自适应分布式协同传输技术能够显著提升节点间的可靠传输性能，实现分布式多节点的自主协同组网通信。
|
| 关 键 词： | 分布式 协同传输 信道感知 自适应 |
| 收稿时间： | 2021-03-17 |
Protocol design and system implementation of distributed cooperative transmission |
| |
| Affiliation: | College of Electronic Science and Technology, National University of Defense Technology |
| |
| Abstract: | Cooperative communications is a reliable communication technology, by using spatial diversity, which can overcome channel fading, noise interference and path loss experienced by wireless communication transceivers, and effectively enhance the transmission performance of the system. At present, there are many basic theoretical researches on cooperative communication technology, but there is no real prototype system, and also no measured data as the theoretical basis. This paper designed and implemented an adaptive distributed cooperative transmission protocol, which could acquire channel quality information in real time to support adaptively relay selective and cooperative transmission. The principle prototype was independently developed, and the transmission performance of the system in indoor, outdoor, ground and air application scenarios was tested from three performance indicators of bit error rate, packet loss rate and throughput. The test results show that compared with the direct transmission mode, the adaptively distributed cooperative transmission technology proposed in this paper can effectively improve the reliable transmission performance and realize the autonomous cooperative communication network of distributed multiple nodes. |
| |
| Keywords: | |
|
| 点击此处可从《信号处理》浏览原始摘要信息 |
|
点击此处可从《信号处理》下载全文 |
|
