Arithmetic/Geometric Progression Based Pilot Allocation With Antenna Scheduling for Massive MIMO Cellular Systems

2021 ◽  
Vol 3 (1) ◽  
pp. 1-4
Author(s):  
Abhinaba Dey ◽  
Prabina Pattanayak ◽  
Devendra Singh Gurjar
Keyword(s):  
Massive Mimo ◽  
Cellular Systems ◽  
Geometric Progression ◽  
Pilot Allocation

scholarly journals Partial Pilot Allocation Scheme in Multi-Cell Massive MIMO Systems for Pilot Contamination Reduction

Energies ◽  
2020 ◽  
Vol 13 (12) ◽  
pp. 3163
Author(s):  
Ahmed S. Al-hubaishi ◽  
Nor Kamariah Noordin ◽  
Aduwati Sali ◽  
Shamala Subramaniam ◽  
Ali Mohammed Mansoor ◽  
...  
Keyword(s):  
Massive Mimo ◽  
Large Scale ◽  
Mimo Systems ◽  
Cellular Systems ◽  
Cumulative Distribution ◽  
Pilot Contamination ◽  
Allocation Scheme ◽  
Pilot Allocation ◽  
Allocation Process ◽  
Simulation Results

Inter-cell interference has been identified as one of the major challenges of multiple-input–multiple-output (MIMO)-enabled cellular systems. This problem occurs when the same pilot sets are reused across adjacent cells to save bandwidth for data transmission. As a result, so-called pilot contamination occurs, which cannot be mitigated with an increased number of serving antennas. In this work, we proposed a partial pilot allocation scheme (PPA) to tackle the pilot contamination problem and consequently improve the uplink throughput of users in multi-cell massive MIMO systems. This was achieved by using the large-scale characteristics of the fading channel to keep users with a weak channel condition out of the effect of severe interference during the pilot allocation process. Simulation results showed that the proposed scheme outperformed both smart pilot allocation (SPA) and conventional schemes. In particular, PPA improved the uplink rate by 30% compared to the SPA—a recently proposed schema. Furthermore, our simulation results clearly showed that PPA improved the cumulative distribution function (CDF) of the signal-to-interference-plus-noise ratio (SINR) and uplink throughput.

Pilot contamination mitigation under smart pilot allocation strategies within massive MIMO-5G system

2021 ◽  
pp. 101344
Author(s):  
Farhad Banoori ◽  
Jinglun Shi ◽  
Khalid Khan ◽  
Ruiyan Han ◽  
Muhammad Irfan
Keyword(s):  
Massive Mimo ◽  
Pilot Contamination ◽  
Pilot Allocation ◽  
Allocation Strategies

QoS Constrained Pilot Allocation Scheme for Massive MIMO Systems

2020 ◽  
Vol 69 (5) ◽  
pp. 5661-5665
Author(s):  
Chenhao Qi ◽  
Xuyao Sun ◽  
Yansha Deng ◽  
Arumugam Nallanathan
Keyword(s):  
Massive Mimo ◽  
Mimo Systems ◽  
Allocation Scheme ◽  
Pilot Allocation
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