… the channel state measure and perfect channelestimation is assumed. Frequency-nonselective Rayleigh fading channel is … BER functions of 16-QAM and 64-QAM. As the average SNR …
… coherent and differentially coherent constant-poweradaptive OMM (AOMM) systems are shown to significantly outperform the conventional constant-poweradaptive modulation …
F Shu, J Tong, X You, C Gu, J Wu - Science China Information Sciences, 2016 - Springer
… with M-QAM and MPSK (phase shift keying) modulated signals in the presence of channel estimation error. … Doppler spread estimation for mobile OFDM systems in rayleigh fading …
… (TDBC) protocol employing adaptive modulation. The end-to-… to reduce the impact of channel estimation error is proposed. … - QAM M 调制的双向多 中继选择系统的平均频谱效率的数值…
… identically distributed (iid) Rayleigh entries, the associated … -time decoding with imperfect channelestimations, but their … onto sequences of M-QAM symbols where the signal constella…
… may affect the performance of channelestimation [5]. … And then, the QAM mapping is used to modulate the bit stream. It … of Rayleigh fading and a measured received power-delay profile …
… We did the simulation on both static and Rayleigh fading channels. … And we focus on the downlink channelestimation. There are two … Below we mention of the imperfections and their …
… may affect the performance of channelestimation[6]. … of Rayleigh fading and a measured received power-delay profile … , high QAM constellation likes 256-QAM for higher data rate is …
… in uncorrelated Rayleigh flat fading channels is investigated, … To reduce the channel estimation error’s effect on actual … M-QAM 调制,接收端采 用迫零检测时,接收端BER 的近似表达式. …