| 采用重排正交化的新型中继协作传输机制 |
| |
| 引用本文： | 王朝炜,李立华,徐永太,王海峰.采用重排正交化的新型中继协作传输机制[J].北京邮电大学学报,2010,33(1):65-69. |
| |
| 作者姓名： | 王朝炜 李立华 徐永太 王海峰 |
| |
| 作者单位： | 泛网无线通信教育部重点实验室,北京邮电大学,北京,100876;北京邮电大学,无线新技术研究所,北京,100876;诺基亚无线系统设备研发中心,上海,200002 |
| |
| 基金项目： | 国家高技术研究发展计划项目(2007AA01Z261);;国家自然科学基金项目(60702051);;诺基亚北邮合作项目(Nokia-BUPT07-09) |
| |
| 摘 要： | 为适应无线传输技术发展的需要，提出一种可应用于蜂窝系统的无线中继协作传输机制. 该机制基于在发送端对数据进行重排和在中继站正交化变换的思想，分别通过直传信道和中继站进行信号传输，以获取路径分集和协作分集的增益；在接收端利用信号的相关性和正交性进行合并. 此外为接收端提出了针对不同场景的接收机制，能同时应用于上行和下行链路的传输. 仿真结果表明，本协作中继传输机制较大幅度提高了通信的可靠性和吞吐量，性能优于传统的通信网络，并且实现较为简单灵活.
|
| 关 键 词： | 协作传输 发送分集 正交频分复用 中继技术 |
| 收稿时间： | 2009-6-23 |
| 修稿时间： | 2009-9-28 |
A Novel Relay Cooperative Transmission Scheme with Bit Re-Ordering and Orthogonalization |
| |
| WANG Chao-wei,LI Li-hua,XU Yong-tai,WANG Hai-feng.A Novel Relay Cooperative Transmission Scheme with Bit Re-Ordering and Orthogonalization[J].Journal of Beijing University of Posts and Telecommunications,2010,33(1):65-69. |
| |
| Authors: | WANG Chao-wei LI Li-hua XU Yong-tai WANG Hai-feng |
| |
| Affiliation: | (1.Key Laboratory of Universal Wireless Communcation(Beijing University of Posts and Telecommuncations), Ministry of Education, Beijing 100876, China; 2.Wireless Technology Innovation Institute, Beijing University of Posts and Telecommunications, Beijing 100876, China;3.Wireless Modem System Research, Device R&;D, Nokia, Shanghai 200002, China) |
| |
| Abstract: | In this paper, a relay cooperative scheme is proposed for cellular OFDM system. In the scheme, source station reorganizes and recombines the bits stream, and destination station combines the signals from the two independent paths, direct and relay links; at the relay, signals are redesigned. Furthermore, a supplementary strategy of sub-carrier symbol re-allocation is proposed to enhance the system. Finally, numerical simulation results show that the proposed scheme achieves transmit diversity and improves system performance. |
| |
| Keywords: | cooperative transmission transmit diversity OFDM relay |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《北京邮电大学学报》浏览原始摘要信息 |
|
点击此处可从《北京邮电大学学报》下载全文 |
|
