Performance Investigation on Cell Selection Schemes Associated with Downlink Inter-Cell Interference Coordination in Heterogeneous Networks for LTE-Advanced

Saito, Yuya; Sangiamwong, Jaturong; Miki, Nobuhiko; Nagata, Satoshi; Abe, Toshinori; Okumura, Yukihiko

doi:10.1587/transcom.e94.b.3304

Cited by 9 publications

(7 citation statements)

References 6 publications

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“…Furthermore, it is also leveraged for throughput maximization. Cell association can be defined as the procedure that searches for a suitable BS for user equipment according to a given set of parameters [33]. Several cell association methods have been discussed in the literature for various sets of metrics [34][35][36].…”

Section: Related Workmentioning

confidence: 99%

Energy Efficiency and Throughput Optimization in 5G Heterogeneous Networks

et al. 2023

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Device-to-device communication offers a promising technology for the 5G network that aims to enhance the data rate, reduce latency and cost, improve energy efficiency, and provide other desired features. The 5G heterogeneous network (5GHN) with a decoupled association strategy of downlink (DL) and uplink (UL) is a promising solution for the challenges faced in the 4G heterogeneous network (4GHN). The research presented in this paper evaluates the performance of the 4GHN as well as a DL-and-UL-coupled (DU-CP) access scheme in comparison with the 5GHN with a DL-and-UL-decoupled (DU-DCP) access scheme in terms of the energy efficiency and network throughput in four-tier heterogeneous networks. The energy and throughput are optimized for both scenarios, i.e., DU-CP and DU-DCP, and the results are compared. Detailed performance analyses of the DU-CP and DU-DCP access schemes were conducted with the help of comparisons of the results achieved by implementing a genetic algorithm (GA) and particle swarm optimization (PSO). Both of these algorithms are suited for the non-linear problem under investigation in which the search space is large. The simulation results have shown that the DU-DCP access scheme gives a better performance than the DU-CP scheme in a four-tier heterogeneous network in terms of network throughput and energy efficiency. The PSO achieves an energy efficiency of 12 Mbits/joule for the DU-CP and 42 Mbits/joule for the DU-DCP, whereas the GA yields an energy efficiency of 28 Mbits/joule for the DU-CP and 55 Mbits/joule for the DU-DCP. The performance of the proposed method is compared with those of three other schemes. The results show that the DU-DCP scheme using the GA outperforms the compared methods.

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Section: Related Workmentioning

confidence: 99%

Energy Efficiency and Throughput Optimization in 5G Heterogeneous Networks

et al. 2023

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“…LTE sistemlerde ise hücre seçimi, referans sinyalinin alınan gücü (RSRP) ve referans sinyalinin alınan kalitesi (RSRQ) parametrelerine dayalı olarak gerçekleştirilmektedir [8]. Ancak LTE standartlarına henüz geçmese de SINR kriterine göre hücre seçimi üzerine çalışmalar devam etmektedir [9].…”

Section: Hücre Seç İm Algor İtmalariunclassified

2’-methylklavuzon causes lipid-lowering effects on A549 non-small cell lung cancer cells and significant changes on DNA structure evidenced by fourier transform infrared spectroscopy

Ceylan

Aksoy

Çağır

et al. 2020

Vibrational Spectroscopy

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“…In this study, the BS deployment is of the co-channel type, in which all cells use the same frequency band. This method is commonly used because it involves a more costeffective and efficient use of the spectrum [7]. However, due to bandwidth sharing among cells, the resulting interference needs to be dealt with using efficient interference management techniques [8].…”

Section: Introductionmentioning

confidence: 99%

Joint downlink user association and interference avoidance with a load balancing approach in backhaul-constrained HetNets

Chinipardaz,

Amraee,

Sarlak

2024

PLoS ONE

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In heterogeneous networks (HetNets), different lower-power base stations are added in a typically unplanned manner to the well-planned macro-only network, bringing new challenges to the network functions. Small cells experience limited backhaul capacity since cost-effective backhaul is not easily accessible to them. This study focuses on the issue of user association in backhaul-constrained HetNets. It shows that it is necessary to associate users with cells using a load balancing approach in order to fully leverage the addition of small cells. The cell association needs to be done jointly with an interference management technique that protects offloaded users and those prone to harmful interference. After modeling the system and describing the interference model, the problem of cell and subband allocation is formulated. We first examine the problem in a time-sharing mode and present a centralized heuristic solution to the cell and subband allocation problem. This is accomplished by solving the convex problem using the gradual removal method. The importance of providing distributed algorithms for HetNets leads to the development of a new algorithm through the application of the dual decomposition method to a reformulated problem and the use of an admission control mechanism. In the achieved algorithm, all computations are performed locally, with each user and base station relying only on local information. This algorithm obtains near-optimal answers, as confirmed by the simulation results. Compared with conventional cell allocation methods, our distributed algorithm prevents intensive interference for all users and achieves better load balance between network tiers, resulting in improved network utility.

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Performance Investigation on Cell Selection Schemes Associated with Downlink Inter-Cell Interference Coordination in Heterogeneous Networks for LTE-Advanced

Cited by 9 publications

References 6 publications

Energy Efficiency and Throughput Optimization in 5G Heterogeneous Networks

Energy Efficiency and Throughput Optimization in 5G Heterogeneous Networks

2’-methylklavuzon causes lipid-lowering effects on A549 non-small cell lung cancer cells and significant changes on DNA structure evidenced by fourier transform infrared spectroscopy

Joint downlink user association and interference avoidance with a load balancing approach in backhaul-constrained HetNets

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