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Resource Allocation for D2D Links in the FFR and SFR Aided Cellular Downlink
Published in Institute of Electrical and Electronics Engineers Inc.
2016
Volume: 64
   
Issue: 10
Pages: 4434 - 4448
Abstract
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 the analytical and simulation results for characterizing both the coverage probability and the capacity of D2D links under the proposed schemes that are benchmarked against the radical unity frequency reuse scheme. The impact of the D2D links on the coverage probability of macrocellular 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 tradeoff between the energy consumption and the performance of D2D links. © 2016 IEEE.
About the journal
JournalData powered by TypesetIEEE Transactions on Communications
PublisherData powered by TypesetInstitute of Electrical and Electronics Engineers Inc.
ISSN00906778
Open AccessYes
Concepts (15)
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    Energy utilization
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    Frequency allocation
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    Frequency division multiple access
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    Mobile ad hoc networks
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    Mobile telecommunication systems
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    Power control
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    Probability
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    Wireless networks
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    Capacity
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    COVERAGE PROBABILITIES
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    Device-to-device communications
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    Fractional frequency reuse
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    FREQUENCY-ALLOCATION SCHEMES
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    SOFT FREQUENCY REUSE
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    Orthogonal frequency division multiplexing