A5010516590- Advanced MIMO Systems Optimization
- Cooperative Communication and Network Coding
- Advanced Wireless Communication Technologies
- Network Traffic and Congestion Control
- Full-Duplex Wireless Communications
- Advanced Optical Network Technologies
- Advanced Wireless Network Optimization
- Advanced Photonic Communication Systems
- Energy Harvesting in Wireless Networks
Northwestern Polytechnical University
2023-2024
Shandong University of Science and Technology
2024
In this letter, the scalable cache-aided cell-free (SCCF) massive multiple input output systems are proposed to reduce downlink transmit energy consumption (EC) via fronthaul and backhaul links. On premise of ensuring scalability (CF) systems, we establish total EC (TEC) models SCCF with caching on both access points central processing unit. Through successive convex approximation algorithms, obtain near-optimal cache placements for TEC minimization problems in various forms resulting from...
Under the ideal assumption of deploying only one central processing unit (CPU) in entire system, cell-free (CF) systems can achieve significant macro-diversity gain, thereby providing uniformly reliable service to each user equipment (UE). However, due limitations system scalability and feasibility strict phase synchronization, CF require a multi-CPU setup perform coherent transmission at smaller scale. Moreover, conventional typically operate time-division duplex (TDD) mode utilize...
This paper proposes a high energy efficiency zero-forcing (HEEZF) precoding scheme to improve the (EE) of cell-free massive multiple-input multiple-output systems. The HEEZF better balances downlink spectral (SE) and front-hauling costs based on premise scalability. Simulation results show that outperforms maximum-ratio existing schemes in terms EE.