现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2014年
11期
1-3
,共3页
预编码%自适应码本%码本旋转%旋转矩阵码本
預編碼%自適應碼本%碼本鏇轉%鏇轉矩陣碼本
예편마%자괄응마본%마본선전%선전구진마본
precoding%adaptive codebook%codebook rotation%rotation matrix codebook
提出一种基于码本旋转的自适应码本设计方法,在不改变现有的码本基础矩阵的基础上,根据误码率(BER)和信干噪比(SINR)的统计和估计结果,生成一组新的旋转矩阵码本,并结合反馈开销考虑与原来基础码本矩阵构成双码本矩阵,根据信道的实时变化及时地调整码本的精度,从而能够在有限反馈的情况下更加有效地提高预编码的性能。
提齣一種基于碼本鏇轉的自適應碼本設計方法,在不改變現有的碼本基礎矩陣的基礎上,根據誤碼率(BER)和信榦譟比(SINR)的統計和估計結果,生成一組新的鏇轉矩陣碼本,併結閤反饋開銷攷慮與原來基礎碼本矩陣構成雙碼本矩陣,根據信道的實時變化及時地調整碼本的精度,從而能夠在有限反饋的情況下更加有效地提高預編碼的性能。
제출일충기우마본선전적자괄응마본설계방법,재불개변현유적마본기출구진적기출상,근거오마솔(BER)화신간조비(SINR)적통계화고계결과,생성일조신적선전구진마본,병결합반궤개소고필여원래기출마본구진구성쌍마본구진,근거신도적실시변화급시지조정마본적정도,종이능구재유한반궤적정황하경가유효지제고예편마적성능。
A design method of adaptive codebook based on codebook rotation is proposed in this paper. Without changing the existing codebook base matrix,a new set of rotation matrix codebook is generated according to the statistics and estimation results of bit error rate(BER)and signal to interference plus noise ratio(SINR). Moreover,a dicodebook matrix is constituted in combination with the overhead of the feedback and the original basic codebook matrix. The accuracy of the codebook is adjusted timely according to the real-time change of the channel,so that the performance of the precoding can be improved more effectively within the limited feedback.