Minimizing Interference in Ultra-Dense Femtocell Networks Using Graph-Based Frequency Reuse Technique

Adekunle, Adebayo A; Gbenga-Ilori, Abiodun

doi:10.46792/fuoyejet.v5i1.456

Cited by 8 publications

(5 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Simulation results showed that as the number of FAPs increases, the data rate decreases, because the interference between the closest FAPs increases [34] Greedy and graph-based technique (GBT) algorithms to reduce co-tier interference…”

Section: Refmentioning

confidence: 99%

See 1 more Smart Citation

Relay-Based Clustering Method for Interference Management in Heterogeneous Wireless Cellular Network

Susanto

Hasim

Fitriawan

2021

Jurnal Teknik Elektro

View full text Add to dashboard Cite

Femtocell is one of solutions to improve quality of services and network capacity for users in indoor areas. Radio resources used by femtocells are shared from macrocell network, thus it saves the use of frequency spectrum. However, one of problems in deploying femtocells within coverage area of macrocells is interference due to radio resources sharing between femtocells and macrocells. It creates interferences called as cross-tier (macrocell-femtocell/femtocell-macrocell) and co-tier (macrocell-macrocell/femtocell-femtocell) interferences. This paper proposes a relay-based clustering method to mitigate interference in femtocells located in the whole edge area of macrocell and the cell edge area of sectorized macrocells. Relay nodes are deployed statically (fixed location) in the neighboring macrocell area. Relay node will recruit their members based on the shortest distance. Certain relay node’s members do not need to transmit large amounts of power to enhanced Node B (eNB), such that interference from Macrocell User Equipment (MUE) to Home enhanced Node B (HeNB) can be minimized. Simulation experiments has been carried out and optimistic results for the sectorized macrocells scenario show that Signal-to-Interference-plus-Noise-Ratio (SINR) of femtocells for the conventional system that does not reach the targeted SINR of 20 dB is 87%. Meanwhile, after applying the relay-based clustering method, SINR value of femtocells below or equal to 20 dB reaches 72%. Optimistic results for throughput and Bit Error Rate (BER) show improvement of 15% and 14%, respectively. It has been shown that the relay-based clustering method can provide better performance compared to the conventional system even for femtocells densely deployed.

show abstract

Section: Refmentioning

confidence: 99%

“…In addition to resource allocation methods, ref. [34] also reduced co-tier interference using greedy and graph-based technique (GBT) algorithms. Their simulation results showed that the greedy algorithm has the disadvantage of being inefficient in assigning random subbands.…”

mentioning

confidence: 99%

Relay-Based Clustering Method for Interference Management in Heterogeneous Wireless Cellular Network

Susanto

Hasim

Fitriawan

2021

Jurnal Teknik Elektro

View full text Add to dashboard Cite

show abstract

“…The FFR scheme makes use of a form of minimum distance constraint. In the work of Adekunle & Gbenga-Ilori (2020), authors used graph colouring frequency reuse technique for frequency assignment in communication networks with ultra-dense femtocells to minimize interference. Some other papers also used power control for coordinating spectrum sharing in D2Denabled cellular networks (Zhang et al, 2017), (Abdallah, Mansour, & Chehab, 2018), (Nguyen, & Rao, 2015).…”

Section: *Corresponding Authormentioning

confidence: 99%

Bayesian Coalition Game for Overlay D2D Spectrum Sharing in Cellular Networks

Gbenga-Ilori

2020

FUOYEJET

Self Cite

View full text Add to dashboard Cite

In this paper, we present a Bayesian coalition game model for spectrum sharing in order to increase the overall spectrum resource capacity in a cellular network with device-to-device (D2D) communication capabilities. The coalition game is used to enforce cooperation among D2Ds competing for the use of the limited spectrum resource. In this paper, D2D users can access the network in an overlaid mode and share their allocated sub-bands with other D2D users using the proposed game which enables coalition formation that guarantee an optimal rate for all users in the network. The paper establishes sufficient conditions needed for stability in the coalitions formed and present simulation results to show that it is possible to increase the overall capacity of the D2D-enabled cellular network without reducing the performance of the licensed cellular users using the proposed game. D2D spectrum sharing using our proposed algorithm was compared with spectrum sharing using the random pairing method to validate our game model. Results show that there was a 44% and 36% increase in cell sum-rate, when our proposed sub-band allocation game was deployed compared to the random pairing method, for the 50 and 100 cells respectively. The proposed sub-band allocation game also performed better with an increased number of users in the network because of the effective coordination offered by the algorithm.Keywords— Cellular, coalition game, D2D, overlay, spectrum.

show abstract

“…In addition to the flat reaching 10 GB/s, 5G technology allows computing integrated with various devices to realize the Internet of Things (IoT) network scenario [2]. Based on the facts above, to prepare themselves to welcome the 5G generation, an initial study is needed to examine the application of 5G technology, especially in areas with high population density [3]. In this study, we analyzed the FemtoCell network scenario that can meet the characteristics of 5G -free cellular communication technology standards [4].…”

Section: Introductionmentioning

confidence: 99%

Simulation-Based 5G Femtocell Network System Performance Analysis

Eiji,

Mehta

2023

IJCITSM

View full text Add to dashboard Cite

The field of telecommunications technology has undergone significant changes in recent years, particularly with the development and commercial use of 4G and 5G technologies. As 5G technology becomes increasingly prevalent in Indonesia, it is important to explore the ideal network configurations that can achieve desired data rates in areas with high user densities. This study focuses on femtocell networks, which are compact base stations that require minimal power and are ideal for indoor use. Specifically, the study examines three alternative MIMO antenna scenarios, which are Multi-Input Multi-Output antenna designs that can improve data throughput. The study's simulation results indicate that a 16X16 MIMO design offers the best performance in achieving data rates of 1Gbps for all users in a high-density site. This design outperforms 4X4 and 8X8 MIMO arrangements in terms of data throughput, making it the ideal network configuration for femtocell networks in areas with high user densities. The findings of this study can be applied to the deployment and optimization of femtocell networks, which can improve network capacity and data rates for users in indoor environments. As 5G technology continues to advance, the findings of this study will be increasingly relevant and useful for optimizing network configurations and achieving desired data rates.

show abstract

Minimizing Interference in Ultra-Dense Femtocell Networks Using Graph-Based Frequency Reuse Technique

Cited by 8 publications

References 11 publications

Relay-Based Clustering Method for Interference Management in Heterogeneous Wireless Cellular Network

Relay-Based Clustering Method for Interference Management in Heterogeneous Wireless Cellular Network

Bayesian Coalition Game for Overlay D2D Spectrum Sharing in Cellular Networks

Simulation-Based 5G Femtocell Network System Performance Analysis

Contact Info

Product

Resources

About