【摘 要】
：
This paper addresses the problem of channel estimation in 5G-enabled vehicu-lar-to-vehicular (V2V) channels with high-mo-bility environments and non-stationary
【机 构】
：
Center of Communication and TT&C, Chongqing University, Chongqing 400044, China;The State Key Labora
论文部分内容阅读
This paper addresses the problem of channel estimation in 5G-enabled vehicu-lar-to-vehicular (V2V) channels with high-mo-bility environments and non-stationary feature. Considering orthogonal frequency division multiplexing (OFDM) system, we perform extended Kalman filter (EKF) for channel es-timation in conjunction with Iterative Detector& Decoder (IDD) at the receiver to improve the estimation accuracy. The EKF is proposed for jointly estimating the channel frequency response and the time-varying time correlation coefficients. And the IDD structure is adopted to reduce the estimation errors in EKF. The simulation results show that, compared with traditional methods, the proposed method ef-fectively promotes the system performance.
其他文献
通过阐述模具在现代制造业中的作用,引出先进的模具加工方法—高速加工、计算机辅助制造(CAM)在高速铣削中的作用和优点。叙述了CAM技术的加工工艺路线、模拟仿真、走刀方式
请下载后查看，本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
请下载后查看，本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
通过3％烟嘧磺隆·27％莠去津分散型油悬浮剂防除玉米田苗后杂草示范试验,找出适宜的施药剂量,验证其对玉米田各种杂草的防效及对玉米的安全性.综合测定结果表明:3％烟嘧磺隆·27％莠
请下载后查看，本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
分析了安徽省林业生态建设的现状和制约因素。依据现代林业理论和系统工程的理论 ,以森林生态网络理论为指导 ,提出了安徽省森林生态网络建设的指导思想、原则和总体框架 ,以
请下载后查看，本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
测定了白玉兰树冠不同生长时期、不同部位净光合速率的日变化和季节变化及叶绿素含量。结果表明 ,生长初期净光合速率除阳面上冠层为双峰曲线外 ,其他冠层呈单峰曲线 ;盛期呈
从自然环境中分离、筛选出了降解橡椀单宁能力较强的菌株,并对该菌株降解单宁的培养条件进行分析.结果表明,28～32℃、pH 4.5培养8d为橡椀单宁的最适降解条件.在此条件下,