Impact and compensation of sample clock offset in I-CFDMA uplink
To achieve the sample clock synchronization in the interleaved code and frequency division multiple access(I-CFDMA)uplink,the I-CFDMA uplink model was established,and the disturbance of the sample clock offset(SCO)on the system model was discussed,in addition,the signal time shift,phase rotation,mul...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Journal on Communications
2015-10-01
|
| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015195/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841539623634862080 |
|---|---|
| author | Dan DING Nai-ping CHENG Yu-rong LIAO |
| author_facet | Dan DING Nai-ping CHENG Yu-rong LIAO |
| author_sort | Dan DING |
| collection | DOAJ |
| description | To achieve the sample clock synchronization in the interleaved code and frequency division multiple access(I-CFDMA)uplink,the I-CFDMA uplink model was established,and the disturbance of the sample clock offset(SCO)on the system model was discussed,in addition,the signal time shift,phase rotation,multi-user interference(MUI)and inter-carrier interference(ICI)caused by SCO were analyzed quantitatively.On this basis,a compensation method of multi-user SCO was proposed.For one thing,the relevant metric function was modified considering the SCO of each user; for another thing,a multi-user detection(MUD)algorithm based on harmony search was proposed.This algorithm has a higher efficiency than the commonly-used genetic algorithm(GA),as well as a performance approximate to that of optimal detection without SCO but with <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML"> <mfrac> <mn>1</mn> <mrow> <mn>64</mn></mrow> </mfrac> </math></inline-formula> computational burden.The computer simulation results validate the conclusions obtained. |
| format | Article |
| id | doaj-art-f55c6fd48b754913b22655d07aa28aea |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2015-10-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-f55c6fd48b754913b22655d07aa28aea2025-01-14T06:53:56ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2015-10-013618118759696479Impact and compensation of sample clock offset in I-CFDMA uplinkDan DINGNai-ping CHENGYu-rong LIAOTo achieve the sample clock synchronization in the interleaved code and frequency division multiple access(I-CFDMA)uplink,the I-CFDMA uplink model was established,and the disturbance of the sample clock offset(SCO)on the system model was discussed,in addition,the signal time shift,phase rotation,multi-user interference(MUI)and inter-carrier interference(ICI)caused by SCO were analyzed quantitatively.On this basis,a compensation method of multi-user SCO was proposed.For one thing,the relevant metric function was modified considering the SCO of each user; for another thing,a multi-user detection(MUD)algorithm based on harmony search was proposed.This algorithm has a higher efficiency than the commonly-used genetic algorithm(GA),as well as a performance approximate to that of optimal detection without SCO but with <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML"> <mfrac> <mn>1</mn> <mrow> <mn>64</mn></mrow> </mfrac> </math></inline-formula> computational burden.The computer simulation results validate the conclusions obtained.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015195/SC-FDMAsample clock offsetmulti-user detectionharmony search |
| spellingShingle | Dan DING Nai-ping CHENG Yu-rong LIAO Impact and compensation of sample clock offset in I-CFDMA uplink Tongxin xuebao SC-FDMA sample clock offset multi-user detection harmony search |
| title | Impact and compensation of sample clock offset in I-CFDMA uplink |
| title_full | Impact and compensation of sample clock offset in I-CFDMA uplink |
| title_fullStr | Impact and compensation of sample clock offset in I-CFDMA uplink |
| title_full_unstemmed | Impact and compensation of sample clock offset in I-CFDMA uplink |
| title_short | Impact and compensation of sample clock offset in I-CFDMA uplink |
| title_sort | impact and compensation of sample clock offset in i cfdma uplink |
| topic | SC-FDMA sample clock offset multi-user detection harmony search |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015195/ |
| work_keys_str_mv | AT danding impactandcompensationofsampleclockoffsetinicfdmauplink AT naipingcheng impactandcompensationofsampleclockoffsetinicfdmauplink AT yurongliao impactandcompensationofsampleclockoffsetinicfdmauplink |