Open Access
Effective Carrier Aggregation on the LTE-Advanced Systems
TLDR
The enhancement of LTE spectrum flexibility through carrier aggregation, further extension of multi-antenna transmission and provision of improvements in the area of inter-cell interference coordination in heterogeneous network deployments are presented.Abstract:
The initial release of LTE provided extensive support for deployment in spectrum allocations of various characteristics, with bandwidth ranging roughly from 1.3 MHz up to 20 MHz in both paired and unpaired bands. In LTE release 10 the transmission bandwidth can be further extended by means of so-called Carrier Aggregation (CA), where multiple component carriers are aggregated and jointly used for transmission to/from a single terminal. There are up to five component carriers, possibly each of different bandwidth, which can be aggregated, allowing for transmission bandwidth up to 100 MHz backwards compatibility where, each component carrier (CC) uses the release-8 structure. Hence, to a release-8/9 terminal, each CC will appear as an LTE release-8 carrier, while a carrieraggregation capable terminal can exploit the total aggregated bandwidth, enabling higher data rates. In general case, a different number of component carriers can be aggregated for the downlink and uplink. Therefore, this paper highlights the carrier aggregation which supports the inter-band aggregation contiguous component carriers, intra-band aggregation non-contiguous component carriers and inter-band aggregation. This paper also presents the enhancement of LTE spectrum flexibility through carrier aggregation, further extension of multi-antenna transmission and provision of improvements in the area of inter-cell interference coordination in heterogeneous network deployments.read more
Citations
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Journal ArticleDOI
On the Suitability of Multicore Fiber for LTE–Advanced MIMO Optical Fronthaul Systems
TL;DR: In this article, the suitability of spatial multiplexing in multicore fiber (MCF) for multiple-input multiple-output (MIMO) LTE-Advanced (LTE-A) optical fronthaul systems including carrier aggregation is evaluated analytically and experimentally.
Journal ArticleDOI
Radio-Over-Fiber Optical Polarization-Multiplexed Networks for 3GPP Wireless Carrier-Aggregated MIMO Provision
TL;DR: In this article, the application of optical polarization-multiplexed radio-over-fiber wireless backhauling of fully standard 3GPP carrier-aggregated multiple-input multiple-output (MIMO) signals is demonstrated experimentally.
Proceedings ArticleDOI
Optical fronthaul of LTE-advanced MIMO by spatial multiplexing in multicore fiber
TL;DR: Optical wireless fronthaul of dual Mx2×2 MIMO LTE-A systems by radio-over-fiber spatial multiplexing is demonstrated over 125m 4-core fiber using 16QAM and 64QAM subcarrier mapping.
Patent
Resource Sharing Among Multiple Service Providers in a Wireless Network Cloud
TL;DR: In this paper, the authors proposed a spectrum sharing algorithm for resource sharing among wireless service providers in a wireless network cloud (WNC) environment, where a spectrum usage is predicted for each service provider during a given future time-window.
Posted Content
Performance analysis of carrier aggregation for various mobile network implementations scenario based on spectrum allocated
TL;DR: In this article, the authors analyzed the performance gains and complexity level that arises from the aggregation of three interband component carriers (3CC) as compared to aggregation of 2CC using a Vienna LTE System Level simulator.
References
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Book
LTE - The UMTS Long Term Evolution: From Theory to Practice
TL;DR: Scrase et al. as discussed by the authors provide a comprehensive system-level understanding of LTE, built on explanations of the theories which underlie it, and provide a broad, balanced and reliable perspective on this important technology Lucid yet thorough, the book devotes particular effort to explaining the theoretical concepts in an accessible way.
Book
4G: LTE/LTE-Advanced for Mobile Broadband
TL;DR: In this article, the authors focus on LTE with full updates including LTE-Advanced to provide a complete picture of the LTE system, including the physical layer, access procedures, broadcast, relaying, spectrum and RF characteristics, and system performance.
Proceedings ArticleDOI
LTE-Advanced - Evolving LTE towards IMT-Advanced
Stefan Parkvall,Erik Dahlman,Anders Furuskär,Ylva Jading,Magnus Olsson,Stefan Wänstedt,K.C. Zangi +6 more
TL;DR: High-level overview of some technology components currently considered for the evolution of LTE including complete fulfillment of the IMT-advanced requirements, including extended spectrum flexibility, multi-antenna solutions, coordinated multipoint transmission/reception, and the use of advanced repeaters/relaying are provided.
Journal ArticleDOI
An overview of next-generation mobile WiMAX technology
TL;DR: This tutorial describes the prominent technical features of IEEE 802.16m and the potential for successful deployment of the next generation of mobile WiMAX in 2011+.
Journal ArticleDOI
Roadmap of IMT-advanced development
TL;DR: The WRC-07 decisions have paved the way toward the development of IMT-advanced by identifying a 200-MHz contiguous spectrum above 3 GHz for a number of countries.
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