Small Cell Planning: Resource Management and Interference Mitigation Mechanisms in LTE HetNets

Sathya, Vanlin; Ghosh, Shrestha; Ramamurthy, Arun; Tamma, Bheemarjuna Reddy

doi:10.1007/s11277-020-07574-x

Cited by 6 publications

(3 citation statements)

References 17 publications

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“…To meet the data demand and improve signal strength, small cells like picocells, microcells, and femtocells are used by the cellular operators. The optimal placement of a small‐cell model to enhance the LTE network 7 improves the SINR of indoor user equipment. The dynamic power control algorithm fine‐tunes the transmit power based on the user's presence.…”

Section: Related Workmentioning

confidence: 99%

An optimized small‐cell planning procedure for Heterogeneous Network to improve network energy efficiency

Jayapaul¹,

Merline²

2023

Int J Communication

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Cell planning in conventional networks has gained more attention as it directly affects the network performance and deployment cost. Existing cell planning methodologies are framed either with identical base stations or constructing a network without any infrastructure. But heterogeneous networks (HetNets) allow the service provider to deploy small cells over the region to enhance the network performance and signal coverage probability. Thus, a small-cell planning procedure is presented in this research work considering the low-powered base station and deployment cost to enhance the energy efficiency of the HetNet. An adaptive fuzzy expert system is used for cell dimensioning, and a nature-inspired ant colony optimization model is employed for automatic base station placement. Simulation analysis demonstrates that the proposed small-cell planning procedure attains better energy efficiency and user satisfaction ratio compared to conventional planning strategies. In the two cases of simulation analysis, the proposed model attains an average of 85% user satisfaction ratio for case 1 and 87% for case 2, which is better than existing strategies like density-based spatial clustering of applications with noise (DBSCAN), k-means, and number-based spatial clustering (NBSC) algorithms.

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Section: Related Workmentioning

confidence: 99%

An optimized small‐cell planning procedure for Heterogeneous Network to improve network energy efficiency

Jayapaul¹,

Merline²

2023

Int J Communication

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“…To address these issues, placement of Femtos needs to be optimal [10,60]. Optimal placement of Femtos [7,41,56] ensures good SINR and improves overall system capacity. Usually, due to physical constraints, operators may need to go for sub-optimal or arbitrary deployment.…”

Section: Associated Challenges and Existing Solutions For Past And Pr...mentioning

confidence: 99%

Evolution of Small Cell from 4G to 6G: Past, Present, and Future

Sathya¹

2021

Preprint

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To boost the cellular system's capacity, the operator's have started to reuse the same licensed spectrum by deploying 4G LTE small cells (i.e., Femto Cells) in the past. But in time, these small cell licensed spectrum is not sufficient to satisfy future applications like augmented reality (AR) and virtual reality (VR). Hence, cellular operators look for alternate unlicensed spectrum in Wi-Fi 5 GHz band, later 3GPP named as LTE Licensed Assisted Access (LAA). The recent and current roll-out of LAA deployments (in developed nations like the US) provides an opportunity to understand coexistence's profound ground truth. This paper discusses a high-level overview of my past, present, and future research works in the direction of small cell benefits. In the future, we shift the focus onto the latest unlicensed band: 6 GHz, where the latest Wi-Fi version, 802.11ax, will coexist with the latest cellular technology, 5G New Radio (NR) in unlicensed.

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“…A feasible solution to these problems is to ensure an optimal placement of Femto cells [12,62]. An optimal placement guarantees a robust SINR and high network capacity while ensuring that there are no coverage holes within the building [14,42,58]. However, there are additional challenges that need to be addressed.…”

Section: G Small Cell In Unlicensed Deploymentmentioning

confidence: 99%

Heterogenous Networks: From small cells to 5G NR-U

Sathya¹,

Kala²,

Narendran³

2021

Preprint

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With the exponential increase in mobile users, the mobile data demand has grown tremendously. To meet these demands, cellular operators are constantly innovating to enhance the capacity of cellular systems. Consequently, operators have been reusing the licensed spectrum "spatially," by deploying 4G/LTE small cells (e.g., Femto Cells) in the past. However, despite the use of small cells, licensed spectrum will be unable to meet the consistently rising data traffic because of data-intensive applications such as augmented reality/virtual reality (AR/VR) and on-the-go high-definition video streaming. Applications such AR/VR and online gaming not only place extreme data demands on the network, but are also latency-critical. To meet the QoS guarantees, cellular operators have begun leveraging the unlicensed spectrum by coexisting with Wi-Fi in the 5 GHz band. The standardizing body 3GPP, has prescribed cellular standards for fair unlicensed coexistence with Wi-Fi, namely LTE Licensed Assisted Access (LAA), New Radio in unlicensed (NR-U), and NR in Millimeter. The rapid roll-out of LAA deployments in developed nations like the US, offers an opportunity to study and analyze the performance of unlicensed coexistence networks through real-world ground truth. Thus, this paper presents a high-level overview of past, present, and future of the research in small cell and unlicensed coexistence communication technologies. It outlines the vision for future research work in the recently allocated unlicensed spectrum: The 6 GHz band, where the latest Wi-Fi standard, IEEE 802.11ax, will coexist with the latest cellular technology, 5G New Radio (NR) in unlicensed.

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Small Cell Planning: Resource Management and Interference Mitigation Mechanisms in LTE HetNets

Cited by 6 publications

References 17 publications

An optimized small‐cell planning procedure for Heterogeneous Network to improve network energy efficiency

An optimized small‐cell planning procedure for Heterogeneous Network to improve network energy efficiency

Evolution of Small Cell from 4G to 6G: Past, Present, and Future

Heterogenous Networks: From small cells to 5G NR-U

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