5 papers · 1 filter
Pilot Assignment for Distributed Massive MIMO Based on Channel Estimation Error Minimization
Mohd Saif Ali Khan, Karthik RM, Samar Agnihotri
Pilot contamination remains a major bottleneck in realizing the full potential of distributed massive MIMO systems. We propose two dynamic and scalable pilot assignment schemes des…
Decentralized Decoding with Adaptive Local Combining for Cell-Free Massive MIMO
Mohd Saif Ali Khan, Karthik RM, Samar Agnihotri
In existing literature, a two-stage architecture comprising of large-scale fading decoding (LSFD) at the central processing unit (CPU) and local combining at the access points (APs…
Energy-and Spectral-Efficiency Trade-off in Distributed Massive-MIMO Networks
Mohd Saif Ali Khan, Karthik RM, Samar Agnihotri
This paper investigates the energy efficiency (EE) and spectral efficiency (SE) trade-off in uplink distributed massive multiple-input multiple-output (D-mMIMO) systems. Unlike con…
Joint AP-UE Association and Power Factor Optimization for Distributed Massive MIMO
Mohd Saif Ali Khan, Samar Agnihotri, Karthik R. M
The uplink sum-throughput of distributed massive multiple-input-multiple-output (mMIMO) networks depends majorly on Access point (AP)-User Equipment (UE) association and power cont…
Distributed Pilot Assignment for Distributed Massive-MIMO Networks
Mohd Saif Ali Khan, Samar Agnihotri, Karthik R. M
Pilot contamination is a critical issue in distributed massive MIMO networks, where the reuse of pilot sequences due to limited availability of orthogonal pilots for channel estima…