Optimal Fractional Frequency Reuse (FFR) in Multicellular OFDMA System

Assaad, Mohamad

doi:10.1109/vetecf.2008.381

Cited by 174 publications

(94 citation statements)

References 7 publications

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“…Thus, one of the important design parameters is the radius of S C within a cell. In this work, we assume S C to be 63% of the total cell area [40].…”

Section: Network Architecturementioning

confidence: 99%

SC-FDMA-based resource allocation and power control scheme for D2D communication using LTE-A uplink resource

Shah

Hasan

et al. 2015

J Wireless Com Network

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Device-to-device (D2D) communication-enabled cellular networks allow cellular devices to directly communicate with each other without any evolved NodeB (eNB). D2D communication aims to improve the spectral efficiency and increases the overall system capacity. For future mobile networks, intelligent radio resource allocation and power control schemes are required to accommodate the increasing number of cellular devices and their growing demand of data traffic. In this paper, a combined resource allocation and power control scheme for D2D communication is proposed. In the proposed scheme, D2D communication reuses the uplink (UL) resources of conventional cellular user equipments (CUEs); therefore, we have adopted single-carrier frequency division multiple access (SC-FDMA) as UL transmission scheme. The proposed scheme uses fractional frequency reuse (FFR)-based architecture to efficiently allocate the resources and mitigate the interference between CUEs and D2D user equipments (DUEs). In order to guarantee the user fairness, the proposed scheme uses the well-known proportional fair (PF) scheduling algorithm for resource allocation. We have also proposed an intelligent power control scheme which provides equal opportunity to both CUEs and DUEs to achieve a certain minimum signal-to-interference and noise ratio (SINR) value. The performance evaluation results show that the proposed scheme significantly improves the overall cell capacity and achieves low peak-to-average power ratio (PAPR).

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“…Thus, one of the important design parameters is the radius of S C within a cell. In this work, we assume S C to be 63% of the total cell area [40].…”

Section: Network Architecturementioning

confidence: 99%

SC-FDMA-based resource allocation and power control scheme for D2D communication using LTE-A uplink resource

Shah

Hasan

et al. 2015

J Wireless Com Network

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“…Therefore, ICI coordination (ICIC) in cellular networks is crucial. FFR is one of the most effective schemes for ICIC, where the cell is divided into two regions, namely, the inner-region where frequency reuse one is utilized, i.e., all inner-regions of all cells use the same frequency resources, and the outerregion where higher frequency reuse is adopted, i.e., outer-regions of neighboring cells cannot use same frequency resources [1]. The results in [1] show that the optimal radius of the inner-region is about 0.63 of the cell radius.…”

Section: Introductionmentioning

confidence: 99%

“…FFR is one of the most effective schemes for ICIC, where the cell is divided into two regions, namely, the inner-region where frequency reuse one is utilized, i.e., all inner-regions of all cells use the same frequency resources, and the outerregion where higher frequency reuse is adopted, i.e., outer-regions of neighboring cells cannot use same frequency resources [1]. The results in [1] show that the optimal radius of the inner-region is about 0.63 of the cell radius. The authors in [2] evaluated the two major forms of FFR schemes, namely, strict-FFR, where users in inner-region do not share any RBs with outer-region users; and Soft-frequencyreuse (SFR), where inner-region and outer-region users can share RBs.…”

Section: Introductionmentioning

confidence: 99%

“…In [3], an attempt to determine optimal FFR is proposed where the objective is to minimize the total power subject to minimum rate constraints. Both [1] and [3] declare that the optimal frequency reuse factor for outer-region is three (FFR-3). However, FFR is a static scheme which does not consider the varying nature of both wireless channel and traffic load.…”

Section: Introductionmentioning

confidence: 99%

“…To the best of our knowledge, the above points have not been taken into consideration in either conventional or dynamic FFR schemes [1,2,3,4,5]. In this paper, we concentrate on the equal cell-load scenario, where other algorithms in the literature failed to provide any significant throughput improvement compared to strict-FFR-3 [1, 2, 3, 4, 5].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A dynamic distributed frequency reuse scheme for OFDMA downlink cellular networks

et al. 2016

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In this paper, a distributed algorithm for dynamic frequency reuse scheme in OFDMA downlink cellular networks is proposed. Each cell is divided into two regions, namely, inner and outer regions. The proposed distributed algorithm is based on minimizing the total interference at all users in each region. Unlike other fractional frequency reuse (FFR) schemes, the main advantage of the proposed algorithm is that it adapts to the network channel conditions. Simulation results show that the proposed algorithm provides better performance than that of FFR, in terms of both total system throughput and average user bit-rate. Keywords: inter-cell interference coordination, frequency reuse Classification: Wireless Communication Technologies 248 IEICE Communications Express, Vol.5, No.8,[248][249][250][251][252][253] [4] R. Y. Chang, Z. Tao, J. Zhang, and C. C. J. Kuo, "A graph approach to dynamic fractional frequency reuse (FFR) in multi-cell OFDMA networks,"

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Resource Allocation Approaches in Multi‐Tier Networks

Hossain

Niyato

2013

Radio Resource Management in Multi‐Tier Cellular Wireless Networks

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Optimal Fractional Frequency Reuse (FFR) in Multicellular OFDMA System

Cited by 174 publications

References 7 publications

SC-FDMA-based resource allocation and power control scheme for D2D communication using LTE-A uplink resource

SC-FDMA-based resource allocation and power control scheme for D2D communication using LTE-A uplink resource

A dynamic distributed frequency reuse scheme for OFDMA downlink cellular networks

Resource Allocation Approaches in Multi‐Tier Networks

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