High-speed and Wide FoV Autonomous Beamformer Driving Forward to 4D Resource Allocation in 6G RAN Era

2021 ◽  
Author(s):  
You-Wei Chen ◽  
Shang-Jen Su ◽  
Chin-Wei Hsu ◽  
Min-Yu Huang ◽  
Hua Wang ◽  
...  
Keyword(s):  
Resource Allocation ◽  
High Speed ◽  
Wide Fov

scholarly journals Fog Computing-Assisted Energy-Efficient Resource Allocation for High-Mobility MIMO-OFDMA Networks

2018 ◽  
Vol 2018 ◽  
pp. 1-8
Author(s):  
Lingyun Lu ◽  
Tian Wang ◽  
Wei Ni ◽  
Kai Li ◽  
Bo Gao
Keyword(s):  
Resource Allocation ◽  
Energy Efficient ◽  
High Speed ◽  
Optimization Problem ◽  
Fog Computing ◽  
High Mobility ◽  
High Speed Train ◽  
Efficient Resource ◽  
Energy Efficient Resource Allocation ◽  
System Configurations

This paper presents a suboptimal approach for resource allocation of massive MIMO-OFDMA systems for high-speed train (HST) applications. An optimization problem is formulated to alleviate the severe Doppler effect and maximize the energy efficiency (EE) of the system. We propose to decouple the problem between the allocations of antennas, subcarriers, and transmit powers and solve the problem by carrying out the allocations separately and iteratively in an alternating manner. Fast convergence can be achieved for the proposed approach within only several iterations. Simulation results show that the proposed algorithm is superior to existing techniques in terms of system EE and throughput in different system configurations of HST applications.

Resource Allocation for Multiple Base Stations OFDM Systems under High-Speed Scenarios

2021 ◽  
Author(s):  
Shuang Lil ◽  
Zhicheng Dong ◽  
Qing Wang ◽  
Weixi Zhou ◽  
Wei Xiao
Keyword(s):  
Resource Allocation ◽  
High Speed ◽  
Base Stations ◽  
Ofdm Systems

Geometric Programming Based Resource Allocation for 5G High-Speed Mobile Networks

2017 ◽  
pp. 228-245
Author(s):  
Shaoyi Xu ◽  
Tianhang Fu
Keyword(s):  
Resource Allocation ◽  
Time Delay ◽  
Power Allocation ◽  
Mobile Networks ◽  
Mobile Communications ◽  
Geometric Programming ◽  
High Speed ◽  
Allocation Scheme ◽  
Delay Constraint ◽  
Resource Allocation Scheme

The high-speed railway (HSR) is a typical application case in 5G systems. Mobile relay stations (MRSs) which are mounted in a high-speed train (HST) is popular system architecture for high-speed mobile communications. However, sharing spectrums between the macro cell and the MRS cell, interference exists in this hybrid system. In this chapter, we investigate the downlink of a multi-cellular decode and forward (DF) relayed orthogonal frequency division multiple access (OFDMA) system and formulate the problem to maximize the system sum rate of all cells subject to a total power constraint and a new proposed time delay constraint. An effective resource allocation scheme combined by greedy sub-carriers allocation and geometric programming (GP) based power allocation algorithm is proposed to optimize subcarrier allocation and power allocation. Numerical experiments verify that the proposed resource allocation scheme outperforms the other traditional approaches and the necessity of introducing the time delay constraint.

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