Adaptive modulation technology in LTE-Advanced system

Hongguang DUAN; Li HU; Mei TIAN

doi:10.11959/j.issn.1000−0801.2017120

您当前的位置：

首页 >

文章列表页 >

Adaptive modulation technology in LTE-Advanced system

research and development | 更新时间：2024-06-05

- Adaptive modulation technology in LTE-Advanced system
- Telecommunications Science Vol. 33, Issue 7, Pages: 88-93(2017)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：10.11959/j.issn.1000−0801.2017120
  CLC： TN929.5
- Published Online：2017-07，
  
  Published：20 July 2017
- 稿件说明：
移动端阅览
Hongguang DUAN, Li HU, Mei TIAN. Adaptive modulation technology in LTE-Advanced system[J]. Telecommunications science, 2017, 33(7): 88-93.
DOI：

Hongguang DUAN, Li HU, Mei TIAN. Adaptive modulation technology in LTE-Advanced system[J]. Telecommunications science, 2017, 33(7): 88-93. DOI： 10.11959/j.issn.1000−0801.2017120.

摘要

自适应调制技术是 LTE-Advanced 系统自适应调制编码（AMC）技术的一项重要研究内容。根据均方误差函数的下凸性，在不同信道模型下，通过迭代算法校正得到新型MCS等级（包含256QAM高阶调制）的通用β值，并与传统MCS等级进行性能对比。仿真结果显示，新型MCS等级在高信噪比时提供的系统吞吐量更高，且优化后的β值使CQI估计更准确。

Abstract

Adaptive modulation technology is an important research content of AMC technology in LTE-Advanced system.The β value of new MCS levels were studied

in which the higher order modulation 256QAM was used

then the general β value of new MCS levels by the iterative algorithm in several different channel models were obtained

according to the convexity of the mean square error function

and compared with the traditional MCS levels.The simulation results show that the new MCS levels provide higher system performance when SNR is high

and the optimized β value makes CQI calculation more accurately.

关键词

Keywords

references

樊昌信 , 曹丽娜 . 通信原理(第六版) [M ] . 北京 : 国防工业出版社 , 2006 .

FAN C X , CAO L N . Communication principles (sixth edition) [M ] . Beijing : National Defense Industry PressPress , 2006 .

3GPP.3rd generation partnership project,technical specification group radio access network; evolved universal terrestrial radio access (E-UTRA):physical layer procedures (release 13):TS36.211 V12.8.0 [S ] . 2015 .

张飞 . TDD LTE系统下行链路自适应及MIMO模式切换技术研究 [D ] . 西安:西安电子科技大学 , 2012 .

ZHANG F . TDD LTE system downlink adaptive and MIMO mode switching technology research [D ] . Xi’an:Xi’an University of Electronic Science and Technology , 2012 .

向建伟 , 于秀兰 , 景小荣 . 毫米波大规模 MIMO 系统中低复杂度混合预编码方法 [J ] . 电信科学 , 2016 , 32 ( 9 ): 10 - 15 .

XIANG J W , YU X L , JING X R . Low complexity hybrid precoding method in mmWave massive MIMO system [J ] . Telecommunications Science , 2016 , 32 ( 9 ): 10 - 15 .

LI X , FANG Q , SHI L . A effective SINR link to system mapping method for CQI feedback in TD-LTE system [C ] // IEEE International Conference on Computing,Control and Industrial Engineering,Augest 20-21,2011,Wuhan,China . New Jersey:IEEE Press , 2011 : 208 - 211 .

MEHLFÜHRER C , WRULICH M , IKUNO J C , et al . Simulating the long term evolution physical layer [C ] // Proceedings of Elmar,September 14-16,2011,Zadar,Croatia . New Jersey:IEEE Press , 2011 : 141 - 144 .

谢灿 , 任旭 . TD-LTE系统中新型SNR和CQI映射方法 [J ] . 电视技术 , 2013 , 37 ( 17 ): 209 - 212 .

XIE C , REN X . New SNR and CQI mapping methods in TD-LTE system [J ] . Television Technology , 2013 , 37 ( 17 ): 209 - 212 .

ABDULHASAN M Q , SALMAN M I , NG C K , et al . Approximate linear minimum mean square error estimation based on channel quality indicator feedback in LTE systems [C ] // IEEE Malaysia International Conference on Communications,November 26-28,2013,Kuala Lumpur,Malaysia . New Jersey:IEEE Press , 2013 : 446 - 451 .

王琛琛 , 薛新华 , 唐苏文 , 等 . EESM 中最佳 β 值的确定 [J ] . 通信技术 , 2009 , 42 ( 12 ): 215 - 216 .

WANG C C , XUE X H , TANG S W , et al . Determination of op timal β value in EESM [J ] . Communication Technology , 2009 , 42 ( 12 ): 215 - 216 .

柏森森 . LTE 下行链路信道估计与自适应传输技术研究 [D ] . 南京:东南大学 , 2015 .

BAI S S . Research on LTE downlink channel estimation and adaptive transmission technology [D ] . Nanjing:Journal of Southeast University , 2015 .

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

No data

Related Author

No data

Related Institution

No data

⁰