Journal ArticleDOI
Relaying operation in 3GPP LTE: challenges and solutions
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TLDR
An overview of the challenges and solutions in the design of relay stations as one of the salient features for 3GPP LTE advanced is provided.Abstract:
With the ever growing demand of data applications, traditional cellular networks face the challenges of providing enhanced system capacity, extended cell coverage, and improved minimum throughput in a cost-effective manner. Wireless relay stations, especially when operating in a halfduplex operation, make it possible without incurring high site acquisition and backhaul costs. Design of wireless relay stations faces the challenges of providing backward compatibility, minimizing complexity, and maximizing efficiency. This article provides an overview of the challenges and solutions in the design of relay stations as one of the salient features for 3GPP LTE advanced.read more
Citations
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Journal ArticleDOI
Device-to-device communication in 5G cellular networks: challenges, solutions, and future directions
TL;DR: An overview of major challenges in two-tier networks is provided and some pricing schemes for different types of device relaying are proposed.
Journal ArticleDOI
A Survey on Buffer-Aided Relay Selection
Nikolaos Nomikos,Themistoklis Charalambous,Ioannis Krikidis,Dimitrios N. Skoutas,Demosthenes Vouyioukas,Mikael Johansson,Charalabos Skianis +6 more
TL;DR: This survey reviews and classify various buffer-aided relay selection policies and discusses their importance through applications and various issues relevant to fifth-generation (5G) networks are discussed.
Journal ArticleDOI
Optimized Energy Aware 5G Network Function Virtualization
TL;DR: An optical network supported architecture is proposed and investigated in this paper to provide the wired infrastructure needed in 5G networks and to support NFV toward an energy efficient 5G network.
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Improving the Coverage and Spectral Efficiency of Millimeter-Wave Cellular Networks Using Device-to-Device Relays
TL;DR: Numerical results show that downlink coverage and SE can be improved using two-hop D2D relaying and mmWave D1D relays achieve better coverage when the density of interferers is large because blockages eliminate interference from NLOS interferers.
Journal ArticleDOI
Hybrid millimeter-wave systems: a novel paradigm for hetnets
TL;DR: A novel millimeter-wave Het net paradigm is introduced, termed hybrid HetNet, which exploits the vast bandwidth and propagation characteristics in the 60 GHz and 70-80 GHz bands to reduce the impact of interference in HetNets.
References
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Journal ArticleDOI
IMT-advanced relay standards [WiMAX/LTE Update]
TL;DR: Insight is provided to both relay standards that could be helpful for readers to fully comprehend practical ways of incorporating relays into 4 G wireless broadband networks.
Journal ArticleDOI
QoS control in the 3GPP evolved packet system
TL;DR: The QoS concept of the evolved packet system, which was standardized in 3GPP Release 8.0, gives network operators full control over the QoS provided for its offered services for each of its subscriber groups.