Adaptive modulation technology in LTE-Advanced system
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...
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| Format: | Article |
| Language: | zho |
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Beijing Xintong Media Co., Ltd
2017-07-01
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| Series: | Dianxin kexue |
| Subjects: | |
| Online Access: | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000−0801.2017120/ |
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| _version_ | 1841530182836420608 |
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| author | Hongguang DUAN Li HU Mei TIAN |
| author_facet | Hongguang DUAN Li HU Mei TIAN |
| author_sort | Hongguang DUAN |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-fd5c3ab5d4d24969b097cfc5bdacda91 |
| institution | Kabale University |
| issn | 1000-0801 |
| language | zho |
| publishDate | 2017-07-01 |
| publisher | Beijing Xintong Media Co., Ltd |
| record_format | Article |
| series | Dianxin kexue |
| spelling | doaj-art-fd5c3ab5d4d24969b097cfc5bdacda912025-01-15T03:12:30ZzhoBeijing Xintong Media Co., LtdDianxin kexue1000-08012017-07-0133889359601251Adaptive modulation technology in LTE-Advanced systemHongguang DUANLi HUMei TIANAdaptive 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.http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000−0801.2017120/adaptive modulation technologyLTE-Advanced systemnew MCS levelβ value |
| spellingShingle | Hongguang DUAN Li HU Mei TIAN Adaptive modulation technology in LTE-Advanced system Dianxin kexue adaptive modulation technology LTE-Advanced system new MCS level β value |
| title | Adaptive modulation technology in LTE-Advanced system |
| title_full | Adaptive modulation technology in LTE-Advanced system |
| title_fullStr | Adaptive modulation technology in LTE-Advanced system |
| title_full_unstemmed | Adaptive modulation technology in LTE-Advanced system |
| title_short | Adaptive modulation technology in LTE-Advanced system |
| title_sort | adaptive modulation technology in lte advanced system |
| topic | adaptive modulation technology LTE-Advanced system new MCS level β value |
| url | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000−0801.2017120/ |
| work_keys_str_mv | AT hongguangduan adaptivemodulationtechnologyinlteadvancedsystem AT lihu adaptivemodulationtechnologyinlteadvancedsystem AT meitian adaptivemodulationtechnologyinlteadvancedsystem |