摘要
In this paper, we propose a feedback algorithm based on the B-spline models of channel responses(CRs) variation across subchannels. We determine the coefficients of the B-splines based on the least-squares fitting principle. The coefficients of the B-splines are fed back to the transmitter for the CRs reconstruction. In the feedback process, we also apply efficient quantization algorithms based on the Gaussian quantization. The simulation results verify that the proposed B-spline model has smaller coefficients variances, and this leads to smaller meansquares error than the Polynomial model [1] when using fewer number of feedback bits. The simulation results also show that the proposed algorithm can attain the upper bound of channel capacity for the precoded MIMO-OFDM system in the frequency-selective channel.
| 原文 | English |
|---|---|
| 主出版物標題 | 2010 IEEE Globecom Workshops, GC'10 |
| 頁面 | 804-808 |
| 頁數 | 5 |
| DOIs | |
| 出版狀態 | Published - 2010 十二月 1 |
| 事件 | 2010 IEEE Globecom Workshops, GC'10 - Miami, FL, United States 持續時間: 2010 十二月 5 → 2010 十二月 10 |
出版系列
| 名字 | 2010 IEEE Globecom Workshops, GC'10 |
|---|
Other
| Other | 2010 IEEE Globecom Workshops, GC'10 |
|---|---|
| 國家 | United States |
| 城市 | Miami, FL |
| 期間 | 10-12-05 → 10-12-10 |
指紋
All Science Journal Classification (ASJC) codes
- Computer Networks and Communications
- Communication
引用此文
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CSI feedback for closed-loop MIMO-OFDM systems based on B-splines. / Chen, Ren Shian; Chang, Ming-Xian.
2010 IEEE Globecom Workshops, GC'10. 2010. p. 804-808 5700435 (2010 IEEE Globecom Workshops, GC'10).研究成果: Conference contribution
TY - GEN
T1 - CSI feedback for closed-loop MIMO-OFDM systems based on B-splines
AU - Chen, Ren Shian
AU - Chang, Ming-Xian
PY - 2010/12/1
Y1 - 2010/12/1
N2 - In this paper, we propose a feedback algorithm based on the B-spline models of channel responses(CRs) variation across subchannels. We determine the coefficients of the B-splines based on the least-squares fitting principle. The coefficients of the B-splines are fed back to the transmitter for the CRs reconstruction. In the feedback process, we also apply efficient quantization algorithms based on the Gaussian quantization. The simulation results verify that the proposed B-spline model has smaller coefficients variances, and this leads to smaller meansquares error than the Polynomial model [1] when using fewer number of feedback bits. The simulation results also show that the proposed algorithm can attain the upper bound of channel capacity for the precoded MIMO-OFDM system in the frequency-selective channel.
AB - In this paper, we propose a feedback algorithm based on the B-spline models of channel responses(CRs) variation across subchannels. We determine the coefficients of the B-splines based on the least-squares fitting principle. The coefficients of the B-splines are fed back to the transmitter for the CRs reconstruction. In the feedback process, we also apply efficient quantization algorithms based on the Gaussian quantization. The simulation results verify that the proposed B-spline model has smaller coefficients variances, and this leads to smaller meansquares error than the Polynomial model [1] when using fewer number of feedback bits. The simulation results also show that the proposed algorithm can attain the upper bound of channel capacity for the precoded MIMO-OFDM system in the frequency-selective channel.
UR - http://www.scopus.com/inward/record.url?scp=79951926486&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79951926486&partnerID=8YFLogxK
U2 - 10.1109/GLOCOMW.2010.5700435
DO - 10.1109/GLOCOMW.2010.5700435
M3 - Conference contribution
AN - SCOPUS:79951926486
SN - 9781424488650
T3 - 2010 IEEE Globecom Workshops, GC'10
SP - 804
EP - 808
BT - 2010 IEEE Globecom Workshops, GC'10
ER -