26 citations · 48 across the 14 of their papers we have counts for
4 papers · 1 filter
Two-Stage Channel Estimation Approach for Cell-Free IoT With Massive Random Access
Xinhua Wang, Alexei Ashikhmin, Zhicheng Dong +1
We investigate the activity detection and channel estimation issues for cell-free Internet of Things (IoT) networks with massive random access. In each time slot, only partial devi…
Multi-point Coordination in Massive MIMO Systems with Sectorized Antennas
Shahram Shahsavari, Mehrdad Nosrati, Parisa Hassanzadeh +3
Non-cooperative cellular massive MIMO, combined with power control, is known to lead to significant improvements in per-user throughput compared with conventional LTE technology. I…
Can Massive MIMO Support URLLC?
Hangsong Yan, Alexei Ashikhmin, Hong Yang
We investigate the feasibility of using Massive MIMO to support URLLC in both coherence interval based and 3GPP compliant pilot settings. We consider grant-free uplink transmission…
Unequal Error Protection Achieves Threshold Gains on BEC and BSC via Higher Fidelity Messages
Beyza Dabak, Ahmed Hareedy, Alexei Ashikhmin +1
Because of their capacity-approaching performance, graph-based codes have a wide range of applications, including communications and storage. In these codes, unequal error protecti…