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Joint Constellation Shaping Using Gradient Descent Approach for MU-MIMO Broadcast Channel
Maxime Vaillant, Alix Jeannerot, Jean-Marie Gorce
We introduce a learning-based approach to optimize a joint constellation for a multi-user MIMO broadcast channel ( Tx antennas, users, each with Rx antennas), with perfe…
Joint Resource-Power Allocation and UE Rank Selection in Multi-User MIMO Systems with Linear Transceivers
K. Pavan Srinath, Alix Jeannerot, Alvaro Valcarce Rial
Next-generation wireless networks aim to deliver data speeds much faster than 5G. This requires base stations with lots of antennas and a large operating bandwidth. These advanced…
Joint Slot and Power Optimization for Grant Free Random Access with Unknown and Heterogeneous Device Activity
Alix Jeannerot, Malcolm Egan, Jean-Marie Gorce
Grant Free Random Access (GFRA) is a popular protocol in the Internet of Things (IoT) to reduce the control signaling. GFRA is a framed protocol where each frame is split into two…
Exploiting Device Heterogeneity in Grant-Free Random Access: A Data-Driven Approach
Alix Jeannerot, Malcolm Egan, Jean-Marie Gorce
Grant-free random access (GFRA) is now a popular protocol for large-scale wireless multiple access systems in order to reduce control signaling. Resource allocation in GFRA can be…