Relay Assignment for Energy Harvesting Cooperative Communication Systems with Long-Term CSI and Energy Side Information

2017 ◽  
Vol E100.B (12) ◽  
pp. 2139-2146
Author(s):  
Feng KE ◽  
Yue ZHANG ◽  
Yuanyi DENG ◽  
Yuehua DING
Keyword(s):  
Energy Harvesting ◽  
Cooperative Communication ◽  
Communication Systems ◽  
Side Information ◽  
Relay Assignment ◽  
Energy Side

scholarly journals Resource Management in Energy Harvesting Cooperative IoT Network under QoS Constraints

Sensors ◽  
2018 ◽  
Vol 18 (10) ◽  
pp. 3560 ◽  
Author(s):  
Maliha Amjad ◽  
Ashfaq Ahmed ◽  
Muhammad Naeem ◽  
Muhammad Awais ◽  
Waleed Ejaz ◽  
...  
Keyword(s):  
Resource Management ◽  
Energy Harvesting ◽  
Power Allocation ◽  
Cooperative Communication ◽  
Optimal Solution ◽  
Mixed Integer ◽  
Management Problem ◽  
Decode And Forward ◽  
Relay Assignment ◽  
Sum Rate

Cooperative communication with RF energy harvesting relays has emerged as a promising technique to improve the reliability, coverage, longevity and capacity of future IoT networks. An efficient relay assignment with proper power allocation and splitting is required to satisfy the network’s QoS requirements. This work considers the resource management problem in decode and forward relay based cooperative IoT network. A realistic mathematical model is proposed for joint user admission, relay assignment, power allocation and splitting ratio selection problem. The optimization problem is a mixed integer non-linear problem (MINLP) whose objective is to maximize the overall sum rate (bps) while satisfying the practical network constraints. Further, an outer approximation algorithm is adopted which provides epsilon-optimal solution to the problem with guaranteed convergence and reasonable complexity. Simulations of the proposed solution are carried out for various network scenarios. The simulation results demonstrate that cooperative communication with diversity achieves a better admission of IoT users and increases not only their individual data rates but also the overall sum rate of an IoT network.

scholarly journals Resource Management in Energy Harvesting Cooperative IoT Network under QoS Constraints

2021 ◽  
Author(s):  
Maliha Amjad ◽  
Ashfaq Ahmed ◽  
Muhammad Naeem ◽  
Muhammad Awais ◽  
Waleed Ejaz ◽  
...  
Keyword(s):  
Resource Management ◽  
Energy Harvesting ◽  
Power Allocation ◽  
Cooperative Communication ◽  
Optimal Solution ◽  
Mixed Integer ◽  
Management Problem ◽  
Decode And Forward ◽  
Relay Assignment ◽  
Sum Rate

Cooperative communication with RF energy harvesting relays has emerged as a promising technique to improve the reliability, coverage, longevity and capacity of future IoT networks. An efficient relay assignment with proper power allocation and splitting is required to satisfy the network’s QoS requirements. This work considers the resource management problem in decode and forward relay based cooperative IoT network. A realistic mathematical model is proposed for joint user admission, relay assignment, power allocation and splitting ratio selection problem. The optimization problem is a mixed integer non-linear problem (MINLP) whose objective is to maximize the overall sum rate (bps) while satisfying the practical network constraints. Further, an outer approximation algorithm is adopted which provides epsilon-optimal solution to the problem with guaranteed convergence and reasonable complexity. Simulations of the proposed solution are carried out for various network scenarios. The simulation results demonstrate that cooperative communication with diversity achieves a better admission of IoT users and increases not only their individual data rates but also the overall sum rate of an IoT network.

scholarly journals Resource Management in Energy Harvesting Cooperative IoT Network under QoS Constraints

2021 ◽  
Author(s):  
Maliha Amjad ◽  
Ashfaq Ahmed ◽  
Muhammad Naeem ◽  
Muhammad Awais ◽  
Waleed Ejaz ◽  
...  
Keyword(s):  
Resource Management ◽  
Energy Harvesting ◽  
Power Allocation ◽  
Cooperative Communication ◽  
Optimal Solution ◽  
Mixed Integer ◽  
Management Problem ◽  
Decode And Forward ◽  
Relay Assignment ◽  
Sum Rate

Cooperative communication with RF energy harvesting relays has emerged as a promising technique to improve the reliability, coverage, longevity and capacity of future IoT networks. An efficient relay assignment with proper power allocation and splitting is required to satisfy the network’s QoS requirements. This work considers the resource management problem in decode and forward relay based cooperative IoT network. A realistic mathematical model is proposed for joint user admission, relay assignment, power allocation and splitting ratio selection problem. The optimization problem is a mixed integer non-linear problem (MINLP) whose objective is to maximize the overall sum rate (bps) while satisfying the practical network constraints. Further, an outer approximation algorithm is adopted which provides epsilon-optimal solution to the problem with guaranteed convergence and reasonable complexity. Simulations of the proposed solution are carried out for various network scenarios. The simulation results demonstrate that cooperative communication with diversity achieves a better admission of IoT users and increases not only their individual data rates but also the overall sum rate of an IoT network.

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