Stochastic geometry analysis of downlink energy efficiency for a relay deployment scheme in relay-assisted cellular networks

Chen, Hongbin; Chen, Wangfeng; Zhao, Feng; Fan, Lisheng; Zhang, Han

doi:10.1007/s11235-015-0118-2

Cited by 2 publications

(1 citation statement)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the macrocell tier, considering relevant techniques have been used to avoid the interference coming from adjacent MBSs, and in order to make the theoretical derivation tractable, it is assumed that the interference power coming from the other MBSs is comparable to the noise power σ 2 , and the co-tier interference power ξ 2 ωσ 2 is the same all over the macrocell tier [33], where the parameter ω re ects the level of interference power in the macrocell tier. In the small-cell tier, the universal frequency reuse scheme is adopted to improve the network throughput.…”

Section: Channel Modelmentioning

confidence: 99%

Stochastic Geometry Analysis of Downlink Spectral and Energy Efficiency in Ultradense Heterogeneous Cellular Networks

Lei

Chen

Zhao

2018

Mobile Information Systems

Self Cite

View full text Add to dashboard Cite

The energy efficiency (EE) is a key metric of ultradense heterogeneous cellular networks (HCNs). Earlier works on the EE analysis of ultradense HCNs by using the stochastic geometry tool only focused on the impact of the base station density ratio and ignored the function of different tiers. In this paper, a two-tier ultradense HCN with small-cell base stations (SBSs) and user equipments (UEs) densely deployed in a traditional macrocell network is considered. Firstly, the performance of the ultradense HCN in terms of the association probability, average link spectral efficiency (SE), average downlink throughput, and average EE is theoretically analyzed by using the stochastic geometry tool. Then, the problem of maximizing the average EE while meeting minimum requirements of the average link SE and average downlink throughput experienced by UEs in macrocell and small-cell tiers is formulated. As it is difficult to obtain the explicit expression of average EE, impacts of the SBS density ratio and signal-to-interference-plus-noise ratio (SINR) threshold on the network performance are investigated through numerical simulations. Simulation results validate the accuracy of theoretical results and demonstrate that the maximum value of average EE can be achieved by optimizing the SBS density ratio and the SINR threshold.

show abstract

Section: Channel Modelmentioning

confidence: 99%

Stochastic Geometry Analysis of Downlink Spectral and Energy Efficiency in Ultradense Heterogeneous Cellular Networks

Lei

Chen

Zhao

2018

Mobile Information Systems

Self Cite

View full text Add to dashboard Cite

show abstract

Performance analysis of cellular networks with mobile relays under different modes

Chen¹,

Yan

Lagrange

2017

Telecommun Syst

View full text Add to dashboard Cite

International audienceWith the popularity of smart phones and tablets, people make intensive use of these devices on public transport. The deployment of mobile relays on public transport may increase the quality of mobile services. The objective of this paper is to study the performance of cellular networks when mobile relays are deployed in public transport vehicles. We consider two modes: in the FDD mobile relay mode, the same spectrum is reused for all links while in the TDD/FDD hybrid mode, a small part of the spectrum is dedicated to the access link between the terminals inside a transport vehicle and the mobile relay. We provide a general analytical model for the two mobile relay modes by using the stochastic geometry approach. Key metrics like the CDF of the SINR and the CDF of the end-to-end rate are computed. Furthermore, the cell total average rate and the energy efficiency in different modes are evaluated. It has been found that penetration loss is a factor that determines how much gain mobile relay can bring. Numerical results show that when the ratio of vehicular UEs in the cell is 0.4 and the penetration loss is 20 dB, the FDD mobile relay mode and the TDD/FDD hybrid mobile relay mode can achieve +16.3, +29.1% cell rate gain respectively compared with the direct mode

show abstract

Stochastic geometry analysis of downlink energy efficiency for a relay deployment scheme in relay-assisted cellular networks

Cited by 2 publications

References 42 publications

Stochastic Geometry Analysis of Downlink Spectral and Energy Efficiency in Ultradense Heterogeneous Cellular Networks

Stochastic Geometry Analysis of Downlink Spectral and Energy Efficiency in Ultradense Heterogeneous Cellular Networks

Performance analysis of cellular networks with mobile relays under different modes

Contact Info

Product

Resources

About