Journal ArticleDOI
Downlink Radio Resource Partitioning with Fractional Frequency Reuse in Femtocell Networks
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TLDR
A downlink resource partitioning scheme for two-tier networks, where macrocells adopting FFR are overlaid with the femtocells, and a method to determine a proper ratio of portions in each FP by using an optimization approach is suggested.Abstract:
Femtocell and fractional frequency reuse (FFR) techniques have received wide attention as the solutions to the data surge problem in mobile networks. With FFR, the frequency band of a macrocell is divided into several frequency partitions (FPs), and the transmission power levels assigned to FPs differ from each other. In this paper, we propose a downlink resource partitioning scheme for two-tier networks, where macrocells adopting FFR are overlaid with the femtocells. With the proposed scheme, every FP is divided into the macro-dedicated, the shared, and the femto-dedicated portions. The ratio of these three portions is different for each FP. We suggest a method to determine a proper ratio of portions in each FP by using an optimization approach. Simulation results show that the proposed scheme maximizes the whole system capacity while satisfying the constraints on the minimum capacity requirement for both macrocell and femtocell.read more
Citations
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Journal ArticleDOI
Service Popularity-Based Smart Resources Partitioning for Fog Computing-Enabled Industrial Internet of Things
TL;DR: A service popularity-based smart resources partitioning (SPSRP) scheme is proposed for fog computing-enabled IIoT and an implementation architecture of the SPSRP scheme for F-IIoT is proposed, which decouples the computing control layer from data processing layer of IIeT through a specified SPS RP controller.
Journal ArticleDOI
Frequency Partitioning Methods to Mitigate Cross-Tier Interference in Two-Tier Femtocell Networks
Da Chen,Tao Jiang,Zhijiang Zhang +2 more
TL;DR: This paper considers the interference problem in two-tier femtocell networks and proposes two frequency partitioning methods to mitigate the interference between the macrocell and femtocells, and shows that the theoretical analysis is reasonable and that the proposed methods can successfully mitigate cross-tier interference.
Journal ArticleDOI
Resource allocation in integrated femto–macrocell networks based on location awareness
TL;DR: An efficient fractional frequency reuse scheme for macrocell network which uses six directional antennas to cover the outer region and analyses the performance demonstrate that the proposed hierarchical cellular network achieves higher throughput and lower outage probability for femtocell when compared to other hierarchical macro–femto cellular networks.
Journal ArticleDOI
Impact of Sub-Band Correlation on SFR and Comparison of FFR and SFR
TL;DR: It is shown that the FFR provides better edge CP and average rate when compared with the SFR in single-input single-output (SISO) networks, thereby suggesting thatThe FFR should be preferred over S FR in cellular SISO OFDMA systems.
Journal ArticleDOI
Cooperative Spatial Modulation for Cellular Networks
TL;DR: Results show that the CoSM can improve signal-to-interference-plus-noise ratio by up to 4 dB over the network MIMO, and can halve the energy consumption while achieving the same bit error rate.
References
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Book
Microwave Mobile Communications
William C. Jakes,Donald C. Cox +1 more
TL;DR: An in-depth and practical guide, Microwave Mobile Communications will provide you with a solid understanding of the microwave propagation techniques essential to the design of effective cellular systems.
Journal ArticleDOI
Handbook of Mathematical Functions with Formulas
TL;DR: The Handbook of Mathematical Functions with Formulas (HOFF-formulas) as mentioned in this paper is the most widely used handbook for mathematical functions with formulas, which includes the following:
Journal ArticleDOI
Femtocell networks: a survey
TL;DR: The technical and business arguments for femtocells are overview and the state of the art on each front is described and the technical challenges facing femtocell networks are described and some preliminary ideas for how to overcome them are given.
Journal ArticleDOI
The Sum of Log-Normal Probability Distributions in Scatter Transmission Systems
TL;DR: In this article, the long-term fluctuation of transmission loss in scatter propagation systems has been found to have a logarithmic-normal distribution, i.e., the scatter loss in decibels has Gaussian statistical distribution.
Journal ArticleDOI
On the performance of adaptive modulation in cellular systems
Xiaoxin Qiu,K. Chawla +1 more
TL;DR: The results show that using adaptive modulation even without any power control provides a significant throughput advantage over using signal-to-interference-plus-noise ratio (SINR) balancing power control and combining adaptive modulation and a suitable power control scheme leads to a significantly higher throughput as compared to no power control or using SINR-balancing power control.