Resource Allocation for Energy Harvesting-Aided Device-to-Device Communications: A Matching Game Approach

Zhi Zhang,Yuzhen Huang,Ping Zhang,Yue Meng

doi:10.1109/access.2019.2957173

Zhi Zhang, Yuzhen Huang + Show 2 more

Open Access

https://doi.org/10.1109/access.2019.2957173

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Abstract

In this paper, we propose an optimization problem of joint spectrum resource matching, power allocation and transmission time duration in energy harvesting (EH) aided device-to-device (D2D) communications underlying cellular network. Particularly, to increase the spectral efficiency (SE), multiple D2D links are permitted to multiplex the same resource block (RB) of cellular user (CU), and multiple cellular RBs are allowed to be reused by one D2D link. Taking into account the Quality of Service (QoS) of cellular users and the harvested energy of D2D links, our objective is to maximize the sum SE of D2D communications. Specifically, the joint problem is a mixed-integer nonlinear programming problem, which has been proved to be NP-hard. In view of this observation, a novel match-based resource allocation algorithm is designed, which contains two key sub-methods with a progressive relationship. First, a many-to-many matching game with externalities is developed, which produces spectrum reusing during each iteration. Second, on the basis of the spectrum matching, a resource allocation algorithm is presented by employing the Lagrange multiplier and Bisection search method. Finally, comprehensive simulation results are provided to demonstrate the performance of the proposed algorithm with different network parameter settings. Numerical results validate that the proposed algorithm can achieve near-optimal performance and significantly outperform the other matching strategies in aspects of SE.

Highlights

The rapid growth of smart devices and mobile internet applications has led to an increasing traffic demand for wireless communication networks
SIMULATION RESULTS all-round simulation evaluation of the proposed many-to-many matching-based resource allocation algorithm is provided under different system parameters
The second one is the one-toone matching algorithm [13], where each D2D link is only allowed to operate in the resource block (RB) of one cellular user (CU) and each RB can only be shared for one D2D link

Summary

Introduction

The rapid growth of smart devices and mobile internet applications has led to an increasing traffic demand for wireless communication networks. The core idea behind this mechanism is that D2D communications allow a pair of devices to reuse the cellular spectrum resources for transmitting information [3]. The associate editor coordinating the review of this manuscript and approving it for publication was Zesong Fei. improving the spectral efficiency, offloading the network traffic, and reducing the transmission delay [4], [5]. Improving the spectral efficiency, offloading the network traffic, and reducing the transmission delay [4], [5] Given these advantages, D2D communications will be emerged as a promising technology of future networks for enhancing communication performance. The drawback of the D2D communications technology is that the energy of the device is limited. Energy harvesting (EH), an emerging technology for overcoming this impending problem, has been exploited, in which devices harvest energy from the environment to extend the operation

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Results

Conclusion