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Two-Stage Channel Estimation Approach for Cell-Free IoT With Massive Random Access



Xinhua Wang , Alexei Ashikhmin , Zhicheng Dong , Chao Zhai


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Can Massive MIMO Support URLLC?



Hangsong Yan , Alexei Ashikhmin , Hong Yang

* 5 pages, 5 figures, to appear in the 2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring) 

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Unequal Error Protection Achieves Threshold Gains on BEC and BSC via Higher Fidelity Messages



Beyza Dabak , Ahmed Hareedy , Alexei Ashikhmin , Robert Calderbank

* 8 pages (double column), 3 figures, submitted to the IEEE International Symposium on Information Theory (ISIT) 

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