Fractional frequency reuse for irregular geometry based heterogeneous cellular networks

Ullah, Rahat; Fisal, Norsheila; Safdar, Hashim; Khalid, Zubair; Maqbool, Wajahat

doi:10.1109/nsitnsw.2015.7176387

Cited by 10 publications

(6 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, dynamic spectrum utilization with FFR configuration is required to be optimized when applied to the irregular geometry cellular network [10]. The dynamic spectrum allocation in FFR enables the available spectrum to be divided following the network variants and miscellaneous traffic demands [11]- [13].…”

Section: Related Workmentioning

confidence: 99%

Hungarian Mechanism based Sectored FFR for Irregular Geometry Multicellular Networks

Ullah

Khalid

Sandhu

et al. 2021

EMITTER Int'l J. of Engin. Technol.

Self Cite

View full text Add to dashboard Cite

The growing demands for mobile broadband application services along with the scarcity of the spectrum have triggered the dense utilization of frequency resources in cellular networks. The capacity demands are coped accordingly, however at the detriment of added inter-cell interference (ICI). Fractional Frequency Reuse (FFR) is an effective ICI mitigation approach when adopted in realistic irregular geometry cellular networks. However, in the literature optimized spectrum resources for the individual users are not considered. In this paper Hungarian Mechanism based Sectored Fractional Frequency Reuse (HMS-FFR) scheme is proposed, where the sub-carriers present in the dynamically partitioned spectrum are optimally allocated to each user. Simulation results revealed that the proposed HMS-FFR scheme enhances the system performance in terms of achievable throughput, average sum rate, and achievable throughput with respect to load while considering full traffic.

show abstract

Section: Related Workmentioning

confidence: 99%

Hungarian Mechanism based Sectored FFR for Irregular Geometry Multicellular Networks

Ullah

Khalid

Sandhu

et al. 2021

EMITTER Int'l J. of Engin. Technol.

Self Cite

View full text Add to dashboard Cite

show abstract

“…All the existing analytical works so far investigating FFR-based multi-tier networks have focused mainly on omni-directional cases, and analyzed Strict or Soft FFR. The recent work in [27] did propose a sectored model with FFR and used PPP and HCPP for modeling base station locations but resorted to use of Monte Carlo simulations and not analytical evaluation, hence could not provide tractable insights into design guidelines and performance.…”

Section: Related Work and Contributionsmentioning

confidence: 99%

Stochastic Geometry Based Framework for Coverage and Rate in Heterogeneous Networks with Sectored Fractional Frequency Reuse

Abdullahi¹,

Liu²,

Mohadeskasaei³

2017

AJNC

View full text Add to dashboard Cite

Abstract:Modern day cellular networks are driven by the need to provide ubiquitous connectivity with very high spectral efficiency to both indoor and outdoor users, hence the need to deploy small cells over conventional macrocells in a Heterogeneous Network (Hetnet) deployment. To alleviate the resulting inter-cell and cross-tier interference, effective intercell interference coordination (ICIC) schemes such as Fractional Frequency Reuse (FFR) are employed, and have been widely studied in perfect geometry network scenarios which are too idealistic and not easily adaptable to the complexity of Hetnets. This work provides an analytical framework for the performance of such FFR schemes in Hetnets with antenna sectorization employed at the macro tier, by leveraging stochastic geometry tools to model base station locations of both macro and femto tiers using the Poisson Point Process (PPP). We study the effects of varying system parameters and consider cross-tier femto interference commonly ignored in many analytical works in literature. Furthermore, the femtocells employ a sensing algorithm to minimize spectrum sharing with macro users in close proximity, especially at the transition areas of center and edge region where cross-tier interference could be monumental. Numerical simulations are used to evaluate performance of the proposed framework in terms of coverage probability and average user rate, and results are compared with traditional FFR schemes and the No-FFR deployment. To the best of the author's knowledge, this is the first analytical framework characterizing sectored-FFR schemes using stochastic geometry tools in Hetnets.

show abstract

“…Therefore, spectrum partition is also required to be dynamic. The dynamic spectrum allocation enables the division of system bandwidth under the network variations and diverse traffic demands [23]. Moreover, the dynamic spectrum partitioning configuration needs to be optimized in the FFR when executed for the irregular geometry-based cellular network.…”

Section: Introductionmentioning

confidence: 99%

Auction Mechanism-Based Sectored Fractional Frequency Reuse for Irregular Geometry Multicellular Networks

et al. 2022

Self Cite

View full text Add to dashboard Cite

Modern cellular systems have adopted dense frequency reuse to address the growing amount of mobile data traffic. The system capacity is improved accordingly; however, this is at the cost of augmented Inter-Cell Interference (ICI). Recently, Fractional Frequency Reuse (FFR) has emerged as an efficient ICI management scheme in Orthogonal Frequency-Division Multiple Access (OFDMA)-based cellular systems. However, the FFR scheme that leads to optimized spectrum allocation for individual users in the irregular geometry networks is not considered in the literature. Meanwhile, in the practical wireless scenario, the users are non-cooperative and want to maximize their demands. A game-theoretic Auction Mechanism-based Sectored-FFR (AMS-FFR) scheme is proposed in this paper to optimally distribute the bandwidth resources to the individual users in the realistic multicellular network deployment. In the proposed auction mechanism, the Base Station (BS) acts as an auctioneer and is the owner of sub-carriers. The users are permitted to bid for a bundle of sub-carriers corresponding to their traffic requirements. The Monte Carlo simulation results show that the presented AMS-FFR scheme outperforms the prevailing FFR schemes in terms of achievable throughput by 65% and 46% compared to the basic FFFR and dynamic FFR-3 schemes, respectively. Moreover, the average sum rate along with the user satisfaction is significantly increased while considering a full traffic load.

show abstract

Fractional frequency reuse for irregular geometry based heterogeneous cellular networks

Cited by 10 publications

References 17 publications

Hungarian Mechanism based Sectored FFR for Irregular Geometry Multicellular Networks

Hungarian Mechanism based Sectored FFR for Irregular Geometry Multicellular Networks

Stochastic Geometry Based Framework for Coverage and Rate in Heterogeneous Networks with Sectored Fractional Frequency Reuse

Auction Mechanism-Based Sectored Fractional Frequency Reuse for Irregular Geometry Multicellular Networks

Contact Info

Product

Resources

About