Interference coordination-based downlink scheduling for heterogeneous LTE-A networks

Mendrzik, Rico; Castillo, Rodrigo A. Justavino; Bauch, Gerhard; Seidel, Eiko

doi:10.1109/wcnc.2016.7564879

Cited by 16 publications

(7 citation statements)

References 7 publications

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“…Then the TD-ICIC was introduced by 3GPP to reduce the interferences from multi-cells toward pico cells and femto cells in the Heterogeneous networks by using the ABS [14], in which the macro cell is abstained from transmission in this period of subframes because these subframes are protected to be used by cell-edge users who are using the same frequency band [15,16]. To control and coordinate these subframes, a scheduler has to be used like the proposal that is introduced by [17]. The researchers used a decentralized resource management framework by using the dynamic fractional frequency reuse (FFR) to coordinate the inter-cell interference between the UEs and give a priority to the edge users.…”

Section: Related Work In Icicmentioning

confidence: 99%

Inter-cell interference mitigation using adaptive reduced power subframes in heterogeneous networks

Aal-Nouman¹,

Abdullah

Shaikhli³

2021

IJECE

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With the remarkable impact and fast growth of the mobile networks, the mobile base stations have been increased too, especially in the high population areas. These base stations will be overloaded by users, for that reason the small cells (like pico cells) were introduced. However, the inter-cell interference will be high in this type of Heterogeneous networks. There are many solutions to mitigate this interference like the inter-cell interference coordination (ICIC), and then the further enhanced ICIC (Fe-ICIC) where the almost blank subframes are used to give priority to the (victim users). But it could be a waste of bandwidth due to the unused subframes. For that reason, in this paper, we proposed an adaptive reduced power subframe that reduces its power ratio according to the user’s signal-to-interference-plus-noise ratio (SINR) in order to get a better throughput and to mitigate the intercell interference. When the user is far from the cell, the case will be considered as an edge user and will get a higher priority to be served first. The results show that the throughput of all users in the macro cells and pico cell will be improved when applying the proposed scheme in term of throughput for the users and the cells.

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Section: Related Work In Icicmentioning

confidence: 99%

Inter-cell interference mitigation using adaptive reduced power subframes in heterogeneous networks

Aal-Nouman¹,

Abdullah

Shaikhli³

2021

IJECE

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“…Second, when all small cells share the same ABS and are so close, intracell-interference becomes a serious problem. A dynamic ABS for each small station is proposed by some previous studies to avoid this type of intracell-interference [70]- [72]. However, in an ultradense heterogeneous network, keeping the macro base station silent during all the ABS that are accorded dynamically to various small cell stations causes a reduction in the allocated macro-user resources for data transmission, yielding spectrum inefficiency.…”

Section: B Ee-de Tradeoff: Green Ultra Dense Networkmentioning

confidence: 99%

How to Meet Increased Capacities by Future Green 5G Networks: A Survey

Bohli

Bouallègue

2019

IEEE Access

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The mass and widespread adoption of connected mobile devices have brought about enormous social changes with significant economic, cultural, and technological impacts on a society that is becoming increasingly connected. Therefore, energy efficiency in future mobile generations is becoming increasingly significant for cellular network operators. To realize future green networks based on energy efficient architecture that meets the holistic requirements in terms of capacity, this paper presents an overview of the principal driving factors triggered by the next mobile generation, 5G, to fulfill the needed requirements. A detailed discussion of the various advantages and disadvantages of each of these techniques is performed to contribute to understanding how the green radio architecture for future mobile networks can be designed and what challenges may oppose this realization.

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“…A centralized scheme is operated through a central control entity that manages multiple BSs simultaneously [9] [10]. Finally, coordinated distributed schemes utilize the specific indicators exchanged between the neighboring BSs via the X2 interface for reducing ICI [11]. Among the various ICIC schemes mentioned above, FFR and SFR are considered as an attractive technique for state-of-the art OFDMA-based cellular systems.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of S-SFR-based OFDMA Cellular Systems

Kim¹,

Cho²,

Yoon³

et al. 2019

KSII TIIS

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Intercell interference coordination (ICIC) is considered as a promising technique to increase the spectral efficiency of OFDMA cellular systems. The soft frequency reuse (SFR) and fractional frequency reuse (FFR) are representative and efficient management techniques for ICIC. Herein, to enhance the performance of the SFR scheme, we propose a call admission (CAC) scheme. In this CAC scheme, called Spectrum handoff-SFR(S-SFR), the spectrum handoff technique is applied to the user equipment (UE) located near the cell center. We derive the traffic analysis model to describe the S-SFR. In addition, a two-dimensional (2-D) Markov chain and an outage analysis are used in our analytical model. From the traffic analysis, the significant performance measures are the outage probability, call blocking probability, system throughput and resource utilization. Based on those, the outage probability and system throughput are obtained using resource utilization as an interference pattern. The analytical results are verified with computer simulation results. Finally, we compare our proposed scheme with other ICI schemes.

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Interference coordination-based downlink scheduling for heterogeneous LTE-A networks

Cited by 16 publications

References 7 publications

Inter-cell interference mitigation using adaptive reduced power subframes in heterogeneous networks

Inter-cell interference mitigation using adaptive reduced power subframes in heterogeneous networks

How to Meet Increased Capacities by Future Green 5G Networks: A Survey

Performance Analysis of S-SFR-based OFDMA Cellular Systems

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