Results 161 to 170 of about 2,258,811 (208)
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LTE-advanced: an operator perspective
IEEE Communications Magazine, 2012LTE-Advanced extends the capabilities originally developed in LTE within the 3GPP. Carrier aggregationis the most significant, albeit complex, improvement provided by LTE-Advanced. Bandwidths from various portions of the spectrum are logically concatenated resulting in a virtual block of a much larger band, enabling increased data throughput ...
Prakash Bhat +8 more
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LTE-Advanced coverage enhancements
IEEE Communications Magazine, 2014Various technologies in LTE/LTE-Advanced have significantly improved the data throughput of 4G systems. However, the coverage of LTE networks, a very important performance metric to operators, receives relatively less attention. In this article we describe the motivations of LTE coverage enhancements from several aspects.
Yifei Yuan +7 more
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Carrier Aggregation in LTE-Advanced
2010 IEEE 71st Vehicular Technology Conference, 2010UMTS LTE system can support flexible bandwidth configuration up to 20 MHz. Currently, system enhancements are being considered to provide substantial improvements to LTE and allow it to meet or exceed IMT-Advanced requirements. One key enhancement feature is bandwidth extension via carrier aggregation to support deployment bandwidth up to 100 MHz. This
Rapeepat Ratasuk +2 more
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2019
Le réseau de mobiles 5G a défini trois grandes catégories d’usages : les smartphones larges bandes (eMBB), la densification d’objets connectés (mMTC) et les applications critiques (URLLC). Cet ouvrage analyse l’évolution LTE (Long Term Evolution)-Advanced Pro du réseau de mobiles 4G permettant l’introduction de ces trois modèles de service.Il présente ...
Frédéric Launay, André Pérez
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Le réseau de mobiles 5G a défini trois grandes catégories d’usages : les smartphones larges bandes (eMBB), la densification d’objets connectés (mMTC) et les applications critiques (URLLC). Cet ouvrage analyse l’évolution LTE (Long Term Evolution)-Advanced Pro du réseau de mobiles 4G permettant l’introduction de ces trois modèles de service.Il présente ...
Frédéric Launay, André Pérez
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On Buffering at the Relay Node in LTE-Advanced
2011 IEEE Vehicular Technology Conference (VTC Fall), 2011In this paper, we study the performance of a LTE-A relay-aided system with limited buffer size at the relay node. In presence of a link quality mismatch between the backhaul and access links of the relay node, we analyze the impact of the buffer size on the occurrence of undesirable events such as buffer overflows or underflows.
Vitiello, Federica +4 more
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Heterogeneous networks in LTE-Advanced
2011 8th International Symposium on Wireless Communication Systems, 20113GPP Long-term Evolution (LTE) allows operators to use new and wider spectrum and complements 3G networks with higher data rates, lower latency and a flat, IP-based architecture. To further improve the broadband user experience in an ubiquitous and cost-effective manner, 3GPP has been working on various aspects of LTE-Advanced.
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2016
This chapter provides a high-level overview of LTE-Advanced (LTE-A) networks and associated technologies to form a basis for discussion of the coexistence issues that exist for unlicensed LTE and Wi-Fi. Understanding the underlying architecture and protocols employed in LTE-A networks will provide a comparative framework to grasp how, and at what ...
Quang-Dung Ho, Daniel Tweed, Tho Le-Ngoc
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This chapter provides a high-level overview of LTE-Advanced (LTE-A) networks and associated technologies to form a basis for discussion of the coexistence issues that exist for unlicensed LTE and Wi-Fi. Understanding the underlying architecture and protocols employed in LTE-A networks will provide a comparative framework to grasp how, and at what ...
Quang-Dung Ho, Daniel Tweed, Tho Le-Ngoc
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Multiple-antenna techniques in LTE-advanced
IEEE Communications Magazine, 2012In this article we discuss the different multiple antenna techniques introduced in LTE-Advanced. Rather than describing the technical details of the adopted solutions, we approach the problem starting from the design targets and the antenna deployments prioritized by the operators. Then we present the main enabling solutions introduced for downlink and
Federico Boccardi +7 more
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From LTE-advanced to the future
IEEE Communications Magazine, 2012LTE and LTE-Advanced have undeniably provided a major step forward in mobile communication capability, enabling mobile service provisioning to approach for the first time that available from fixed-line connections. However, market demands typically do not evolve simply in discrete steps; therefore, the future evolution of LTE-Advanced will be a story ...
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A flexible backhaul architecture for LTE-Advanced
2014 International Conference on Connected Vehicles and Expo (ICCVE), 2014The proliferation of data-hungry smart electronic devices, such as smartphones and intelligent vehicles, has driven the capacities of current mobile communication systems towards their limits. To tackle this formidable challenge, 3GPP Long Term Evolution has recognized network densification with low-power small cells (SCs) as a key paradigm in the ...
Yi Shi 0004 +5 more
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