基于毫米波与Wi-Fi无线异构网络的联合传输

JOINT TRANSMISSION BASED ON MILLIMETER-WAVE AND WI-FI WIRELESS HETEROGENEOUS NETWORKS

陈理想

11649165

硕士

电子与通信工程

王锐

2018-06-15

2018-07-09

哈尔滨工业大学

深圳

随着移动互联网的不断发展与迭代，无线数据访问量一直呈现着指数性的增加。然而，现有的无线传输网络（如Wi-Fi，蜂窝通信等）却面临频谱数量短缺，频率利用率的提升无法跟上数据访问需求的困境。毫米波通信则正是应对此挑战的解决方案中之一。毫米波通信的优势体现在传输带宽大,传输速率高，但是它也具有路径损耗大，非视距传输信号衰减严重的特点，这导致其无法提供持续稳定的高速传输。本课题研究融合毫米波通信与较低频无线通信(Wi-Fi)的高速稳定的通信系统，提出完整的融合传输方案，包括单下行与双下行毫米波通信与较低频无线通信(Wi-Fi)联合传输方案，并在软件无线电平台上实现了毫米波与Wi-Fi联合传输。双下行方案支持：（1）在2.4GHz频段和5GHz频段上工作的无线局域网的通信方式：（2）以单载波方式为基础的毫米波通信方式。单下行方案支持以单载波方式为基础的毫米波通信方式。此外，上行方案支持在2.4GHz频段和5GHz频段上工作的无线局域网的通信方式。本研究课题已经在毫米波收发系统中实现了上述传输方案，并进行实际的性能验证与测试。验证部分包括在不同实验环境下，实测毫米波的传输特性以及信道增益。

With the development and evolution of the mobile Internet, the demands of wireless data is increasing exponentially. However, the existing wireless transmission technologies (such as Wi-Fi, cellular communication network, etc.) are facing spectrum shortages, and improving spectrum efficiency cannot meet the growth of data access requirements. Millimeter wave is one of the solutions addressing the above challenge. The main advantages of millimeter-wave communication are the large transmission bandwidth and high transmission rate. However, due to the large path loss and severe attenuation of Non-Line-of-Sight transmission signals, it is usually unable to provide stable high-speed transmission.This research studies stable high-speed communication technologies that integrate millimeter-wave with lower-frequency wireless (Wi-Fi) communications; proposes a complete transmission solution, including joint single-downlink or dual-downlink millimeter-wave transmission associated with the lower-frequency Wi-Fi transmission; and implements a practical software radio based millimeter wave system for performance testing and verification. The dual downlink transmission scheme supports: (1) Wi-Fi working in 2.4 GHz band and 5 GHz band: (2) Millimeter-wave communication based on the single-carrier. The single downlink transmission scheme supports Millimeter-wave communication based on the single-carrier. In addition, the uplink transmission supports 2.4 GHz band and the 5 GHz band Wi-Fi. This research has realized the above transmission scheme in Millimeter-wave system, and carried out the actual performance verification and test. The performance verifications focus on measuring the transmission characteristics and channel gain of the millimeter-wave communication in different environments.

无线通信 毫米波 70GHz

Wireless communication Millimeter -wave 70GHz

中文

联合培养

南方科技大学

陈理想. 基于毫米波与Wi-Fi无线异构网络的联合传输[D]. 深圳. 哈尔滨工业大学,2018.