吉林大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (2): 661-669.doi: 10.13229/j.cnki.jdxbgxb201702043
叶方, 苏春霞, 李一兵, 刘君
YE Fang, SU Chun-xia, LI Yi-bing, LIU Jun
摘要: 研究了非完全信道状态信息(CSI)条件下用户终端对基站的反馈比特数问题,在考虑有限反馈和信道时延的条件下,得出系统速率损失近似上界与反馈比特数的关系表达式,基于该表达式提出一种新的反馈比特分配方案。该方案通过对系统速率损失近似上界求导处理,得到使得速率损失近似上界达到最小的最佳反馈比特数。该方案可以有效地降低有限反馈对系统速率的影响,系统速率比传统的比特均分算法高,复杂度比穷举法低。
中图分类号:
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