Heterogeneous Cellular Network With Energy Harvesting-Based D2D Communication

被引:121
作者
Yang, Howard H. [1 ]
Lee, Jemin [1 ]
Quek, Tony Q. S. [1 ]
机构
[1] Singapore Univ Technol & Design, Singapore 487372, Singapore
关键词
Device-to-device communication; energy harvesting; stochastic geometry; transmission mode selection; TO-DEVICE COMMUNICATION; 2-TIER FEMTOCELL NETWORKS; STOCHASTIC GEOMETRY; WIRELESS NETWORKS; UE RELAYS; OPTIMIZATION; THROUGHPUT; SYSTEMS; ASSOCIATION; INFORMATION;
D O I
10.1109/TWC.2015.2489651
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The concept of mobile user equipment (UE) relay (UER) has been introduced to support device-to-device (D2D) communications for enhancing communication reliability. However, as the UER needs to use its own power for other UE's data transmission, relaying information in D2D communication may be undesirable for the UER. To overcome this issue, motivated by the recent advances in energy harvesting (EH) techniques, we propose a D2D communication provided EH heterogeneous cellular network (D2D-EHHN), where UERs harvest energy from an access point (AP) and use the harvested energy for D2D communication. We develop a framework for the design and analysis of D2D-EHHN by introducing the EH region (EHR) and modeling the status of harvested energy using Markov chain. The UER distribution is derived, and a transmission mode selection scheme including the efficient UER selection method is proposed. The network outage probability is derived in close form to measure the performance of D2D-EHHN. Based on our analysis results, we explore the effects of network parameters on the outage probability and the optimal offloading bias in terms of the outage probability. Particularly, we show that having a high EH efficiency enhances the performance of D2D-EHHN, but can also degrade, especially for dense network.
引用
收藏
页码:1406 / 1419
页数:14
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