Distributed Antenna Systems in Fractional-Frequency-Reuse-Aided Cellular Networks

Zhang, Jie; Zhang, Rong; Li, Guangjun; Hanzo, Lajos

doi:10.1109/tvt.2012.2230282

Cited by 18 publications

(8 citation statements)

References 29 publications

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“…It also highlights that, the cell-center region macroUEs do not reuse the spectrum of the cell-edge region macroUEs, as a result of which the entire macrocell system is free from inter-cell interference. The use of distributed antenna system (DAS) [25] supports [26]. Taking DAS into consideration, the partitioning in Fig.…”

Section: Spectrum Allocation For the Macrocellmentioning

confidence: 99%

Handling interference in self-organizing femtocell networks through frequency-polarization diversity

Jacob

Madhukumar

2015

Wireless Netw

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The next generation heterogeneous networks are expected to offer higher data-rate and better QoS to the customers by leveraging smaller cells like femtocells and making use of orthogonal frequency division multiple access. However, uncoordinated dense deployment of femtocells in macrocell network pose unique challenges involving cross-tier interference and resource management which results in significant degradation of the system performance. As part of addressing these challenges for the successful integration of both technologies, this paper proposes the deployment of a self-organizing femtocell network that employs an opportunistic smart frequency reuse technique -cross polarized complementary frequency allocation (CPCFA). It exploits the frequency and polarization diversity to mitigate interference in two-tier femtomacro networks. In this work, a strategy combining the adoption of reverse frequency allocation and orthogonal polarized transmission is analyzed as a potential solution for maximizing spectral efficiency and minimizing interference in the existing heterogeneous networks. Focus of the current work is on downlink transmission where the traffic is high and the deployment of femtocell is more beneficial. The results of analytic and simulation studies prove that CPCFA increases the scope for an easily implementable, remarkable opportunity in the context of twotier femto-macro network that can substantially increase the system capacity as well as cell coverage without additional network complexities.

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Section: Spectrum Allocation For the Macrocellmentioning

confidence: 99%

Handling interference in self-organizing femtocell networks through frequency-polarization diversity

Jacob

Madhukumar

2015

Wireless Netw

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“…Gonzalez et al proposed [10] to improve both the network capacity and the cell-edge performance for a dynamic SFR deployment relying on realistic irregularly shaped cells. Distributed antenna aided FFR was conceived by Zhang et al for maximising both the cell-throughput and the coverage quality [11]. Kumar et al [12] analysed the coverage probability of their proposed frequency allocation schemes for picocell users, when the macrocell employed FFR and SFR.…”

Section: Introductionmentioning

confidence: 99%

Resource Allocation for D2D Links in the FFR and SFR Aided Cellular Downlink

Gupta

Kumar

Zhang

et al. 2016

IEEE Trans. Commun.

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Device-to-Device (D2D) communication underlying cellular networks, allows direct transmission between two devices in each other's proximity that reuse the cellular resource blocks in an effort to increase the network capacity and spectrum efficiency. However, this imposes severe interference that degrades the system's performance. This problem may be circumvented by incorporating fractional frequency reuse (FFR) or soft frequency reuse (SFR) in OFDMA cellular networks. By carefully considering the downlink resource reuse of the D2D links, we propose beneficial frequency allocation schemes, when the macrocell has employed FFR or SFR as its frequency reuse technique. The performance of these schemes is quantified using both analytical and simulation results for characterising both the coverage probability and the capacity of D2D links under the proposed schemes that are benchmarked against the radical Unity Frequency Reuse (UFR) scheme. The impact of the D2D links on the coverage probability of macro-cellular users (CUs) is also quantified, revealing that the CUs performance is only modestly affected under the proposed frequency allocation schemes. Finally, we provide insights concerning the power control design in order to strike a beneficial trade-off between the energy consumption and the performance of D2D links.

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“…With the ever-growing requirements of data-hungry transmissions, the performance of a cellular network is constrained by more and more co-channel interference (CCI). The distributed antenna system (DAS) emerges as a promising technique to alleviate the stringent requirements of data transmissions [1][2][3]. In contrast to the traditional cellular networks, where all the antennas are centralised within a macrocell, the remote antenna units (RAUs) of the DAS are deployed separately in a macrocell, but connected to a central base station (CBS) via radio-over-fibre, as shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

Precise error‐rate performance with distributed antenna selection transmission over Nakagami‐ m fading channels

et al. 2016

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Distributed Antenna Systems in Fractional-Frequency-Reuse-Aided Cellular Networks

Cited by 18 publications

References 29 publications

Handling interference in self-organizing femtocell networks through frequency-polarization diversity

Handling interference in self-organizing femtocell networks through frequency-polarization diversity

Resource Allocation for D2D Links in the FFR and SFR Aided Cellular Downlink

Precise error‐rate performance with distributed antenna selection transmission over Nakagami‐ m fading channels

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