LTE-A系统中基于分层反馈的协作调度波束成形技术

彭碧君; 饶毓

doi:10.13873/j.1000-97872013.01.016

Chinese

您当前的位置：

首页 >

文章列表页 >

LTE-A系统中基于分层反馈的协作调度波束成形技术

研究与探讨 | 更新时间：2025-09-11

- LTE-A系统中基于分层反馈的协作调度波束成形技术
- Coordinated scheduling and beamforming technology based on layering feedback in LTE-A system
- 传感器与微系统 2013年32卷第1期页码：9-12
- 作者机构：
  
  清华大学电子工程系微波与数字通信国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872013.01.016
  中图分类号： TN929.5
- 纸质出版：2013
- 稿件说明：
移动端阅览
[1]彭碧君,饶毓.LTE-A系统中基于分层反馈的协作调度波束成形技术[J].传感器与微系统,2013,32(01):9-12.

PENG Bi-jun, RAO Yu. Coordinated scheduling and beamforming technology based on layering feedback in LTE-A system[J]. 2013, 32(1): 9-12.
[1]彭碧君,饶毓.LTE-A系统中基于分层反馈的协作调度波束成形技术[J].传感器与微系统,2013,32(01):9-12. DOI： 10.13873/j.1000-97872013.01.016.

PENG Bi-jun, RAO Yu. Coordinated scheduling and beamforming technology based on layering feedback in LTE-A system[J]. 2013, 32(1): 9-12. DOI： 10.13873/j.1000-97872013.01.016.

摘要

协作多点（CoMP）传输技术是LTE—A系统的关键技术

能够有效抑制多小区同道干扰

从而提高整个系统和边缘用户吞吐量。但CoMP传输中系统性能极大地依赖于发端信道信息的精确程度。现有的研究基本是基于发端拥有完美信道信息的假设

但这在实际中是无法实现的。针对实际的有限反馈系统

提出了基于分层有限反馈的协作调度/协作波束成形算法。仿真结果表明:所提出的算法能够在保持CoMP传输高频谱效率优势的同时可以极大地降低系统反馈量和执行复杂度。

Abstract

Coordinated multi-point（CoMP）transmission is a key technique in LTE-A system

which is capable of mitigating the co-channel interference（CCI）and further improves system throughput.In CoMP

system performance highly depends on the accuracy of channel state information（CSI）.Present works are mainly based on assumption that perfect CSI is available at BSs.However

it cannot be realized in practice.Coordinated scheduling/coordinated beamforming（CS/CB）algorithm based on layering limited feedback is proposed aiming at practical limited feedback system.Simulation results demonstrate that the proposed algorithm is capable of keeping high spectrum efficiency.Meanwhile it can reduce the feedback load and implementation complexity extremely.

关键词

Keywords

references

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

暂无数据