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Issue:
A viterbi algorithm using the channel state information
Author(s):
Chen Liheng
,
Zhang Yerong
Pages:
10
-
11,61
Year:
2005
Issue:
2
Journal:
RADIO COMMUNICATIONS TECHNOLOGY
Keyword:
信道状态信息
;
维特比
;
802.11a
;
Abstract:
维特比算法是一种最大似然码字估计器,它为传输的码字提供了最好的可能估算.对于利用信道状态信息(CSI)的维特比译码方法,信道状态信息精确性显得尤为重要.建议采用维纳滤波提高了信道估计的精度,从而也使得信道状态信道精确性得到提高.通过采用802.11a OFDM系统进行仿真验证表明,采用此方法系统性能有明显的改善.
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