BEM-PSP for Single-Carrier and SC-FDMA Communication Over a Doubly Selective Fading Channel
BEM-PSP for Single-Carrier and SC-FDMA Communication Over a Doubly Selective Fading Channel
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用于通过双选择性衰落信道进行单载波和 SC-FDMA 通信的 BEM-PSP
DOI：
10.1109/twc.2020.2979131
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发表时间：
2020-06
影响因子：
10.4
通讯作者：
Zhou Zhengchun
中科院分区：
文献类型：
--
作者：
Liu Xiaobei;An;Kushal;Guan Yong Liang;Deng Li;Fan Pingzhi;Zhou Zhengchun
In this paper, we consider pilot-aided channel estimation and equalization for single-carrier and single-carrier frequency division multiple-access (SC-FDMA) transmission over doubly-selective channels (DSC). To reduce the channel estimation (CE) parameters, the DSC is modelled using a complex-exponential basis expansion model (CX-BEM) with non-uniform BEM frequencies. We optimize the CX-BEM basis functions using CE error minimization as the objective. As a result, the channel modelling error is greatly reduced. Next, we propose a BEM-based per-survivor processing (PSP) technique and combine it with a decision-directed channel estimator to obtain a channel-tracking equalizer at the receiver. The resultant BEM-PSP receiver significantly improves the channel estimation mean square error (MSE) and the bit error rates (BER) performance in fast fading multi-path channel, thanks to the channel tracking capability embedded within its Viterbi equalizer. Finally, we employ cross-frame channel interpolation, and power distribution between the data and pilot symbols to further improve the system performance at high fading rates. Extensive simulation results show that our BEM-PSP receiver outperforms many existing methods and approaches close to an ideal receiver with perfectly known CSI under various fading scenarios.
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DOI：
10.1109/globalsip.2018.8646337
发表时间：
2018-11
期刊：
2018 IEEE Global Conference on Signal and Information Processing (GlobalSIP)
影响因子：
--
作者：
Xuanfan Shen;Yong Liao;X. Dai
通讯作者：
Xuanfan Shen;Yong Liao;X. Dai
影响因子：
10.4
作者：
F. Peña-Campos;R. Parra-Michel;V. Kontorovich
通讯作者：
F. Peña-Campos;R. Parra-Michel;V. Kontorovich
DOI：
10.1109/26.494306
发表时间：
1996-05
期刊：
IEEE Trans. Commun.
影响因子：
--
作者：
M. Tsatsanis;G. Giannakis
通讯作者：
M. Tsatsanis;G. Giannakis
影响因子：
8.3
作者：
Anas Saci;A. Al-Dweik;A. Shami;Y. Iraqi
通讯作者：
Anas Saci;A. Al-Dweik;A. Shami;Y. Iraqi
影响因子：
5.4
作者：
Shuangchi He;Jitendra Tugnait
通讯作者：
Shuangchi He;Jitendra Tugnait