.png){kind=icon}
返回
A Closed-Form Minimum BER Precoder for Orthogonal Time Frequency Space Systems
.png){kind=icon}
PRE
AI
DOI：10.1109/LCOMM.2022.3175474.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
This letter devises a closed-form precoder for Orthogonal Time Frequency Space (OTFS) systems with linear equalization to minimize the bit error rate (BER). The precoder is developed by optimally allocating the power to adapt to the equivalent channel in the delay-Doppler domain. To achieve the minimum BER precoder design, we convert the minimization of the average BER into the minimization of its lower bound subject to a transmission power constraint. By exploiting the convexity, a closed-form minimum BER precoder is designed, which actually achieves the lower bound. As such, the unified bit error probability function for both the zero-forcing (ZF) and minimum mean square error (MMSE) equalizations is derived and verified with their numerical counterparts. Simulation results demonstrate that the designed precoders can provide lower BER than the existing linear equalizations without precoding.
Keyword:
Bit error rate
Symbols
Manganese
Time-frequency analysis
Minimization
Interference
Signal to noise ratio
Orthogonal time frequency space
minimum BER precoder
zero-forcing
minimum mean square error
期刊
IF:
4.4
论文数:
1.3W
被引数:
2.2W
机构
引用论文
Embedded Pilot-Aided Channel Estimation for OTFS in Delay-Doppler Channels延迟多普勒信道中OTFS的嵌入式导频辅助信道估计
OAAI
OAAI分享收藏
Interference Cancellation and Iterative Detection for Orthogonal Time Frequency Space ModulationOAAI
OAAI分享收藏Need for a consensus on the methods by which to measure joint mobility and the definition of norms for hypermobility that reflect age, gender and ethnic-dependent variation: is revision of criteria for joint hypermobility syndrome and Ehlers-Danlos syndrome hypermobility type indicated?.png)
RheumatologyOAAI
RheumatologyIF0
OAAI分享收藏
查看更多内容