LTE-advanced: an operator perspective

Bhat, P.; Nagata, Satoshi; Campoy, Luis M.; Berberana, Ignacio; Derham, Thomas; Liu, Guangyi; Shen, Xiaodong; Zong, Pingping; Yang, Jin

doi:10.1109/mcom.2012.6146489

Cited by 158 publications

(129 citation statements)

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“…3 Mobile subscriptions by technology [2] LTE-Advanced is meant to fulfil the requirements of International Telecommunication Union -Radio communication sector (ITU-R) for International Mobile Telecommunication -Advanced (IMTAdvanced). The Key IMT-Advanced requirements are summarised as follows [4]:  100 Mbps and 1 Gbps peak data rates for high and low mobility cases respectively;  Minimum 40 MHz transmission bandwidth (and up to 100 MHz is under consideration);  Interworking with other radio access technologies and systems;  Enabling high quality mobile services;  Capability of worldwide roaming;  Up to 350 km/h mobility support;  Voice Over IP (VoIP) capacity from 30 to 50 users/sector/MHz depending on the scenario;  Spectral efficiency from 0.7 bits/Hz/cell to 3 bits/Hz/cell depending on the scenario;  Cell edge user spectral efficiency from 0.015 bps/Hz to 0.1 bps/Hz depending on the scenario; Main features and techniques deployed in LTE-Advanced physical layer can be summarised as follows [5][6][7][8][9][10][11][12][13]:…”

Section: Fig 2 Subscriptions With Cellular Connection [2]mentioning

confidence: 99%

“…To the best of authors' knowledge, none of the existing articles (e.g. see [5][6][7][8]) provide such a comprehensive survey related to LTE-Advanced radio access features. In addition, the latest evolution trends and updates in LTE markets together with discussions regarding the current challenges and the future roadmap of LTE-Advanced are presented, which have rarely been discussed in the existing articles.…”

Section: Fig 2 Subscriptions With Cellular Connection [2]mentioning

confidence: 99%

See 1 more Smart Citation

LTE-Advanced Radio Access Enhancements: A Survey

Dehghani

Arshad

MacKenzie

2014

Wireless Pers Commun

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Long Term Evolution Advanced (LTE-Advanced) is the next step in LTE evolution and allows operators to improve network performance and service capabilities through smooth deployment of new techniques and technologies. LTE-Advanced uses some new features on top of the existing LTE standards to provide better user experience and higher throughputs. Some of the most significant features introduced in LTE-Advanced are carrier aggregation, enhancements in heterogeneous networks, coordinated multipoint transmission and reception, enhanced Multiple Input Multiple Output (MIMO) usage and deployment of relay nodes in the radio network. Mentioned features are mainly aimed to enhance the radio access part of the cellular networks. This survey article presents an overview of the key radio access features and functionalities of the LTE-Advanced radio access network, supported by the simulation results. We also provide a detailed review of the literature together with a very rich list of the references for each of the features. An LTE-Advanced roadmap and the latest updates and trends in LTE markets are also presented.

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Section: Fig 2 Subscriptions With Cellular Connection [2]mentioning

confidence: 99%

Section: Fig 2 Subscriptions With Cellular Connection [2]mentioning

confidence: 99%

LTE-Advanced Radio Access Enhancements: A Survey

Dehghani

Arshad

MacKenzie

2014

Wireless Pers Commun

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“…Mobile network operators have been compelled to adopt new standards so as to provide higher bit-rates and widespread coverage to the users [1]. One of the current trends is based on the exploitation of small cell deployments and dense self-organized networks [2]- [4].…”

Section: Introductionmentioning

confidence: 99%

Energy Efficiency in Latency-Constrained Application Offloading From Mobile Clients to Multiple Virtual Machines

Lagén

Pascual‐Iserte

Muñoz

et al. 2018

IEEE Trans. Signal Process.

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Abstract-This paper addresses the energy-latency trade-off in distributed application offloading, in which an energy-limited handset offloads totally or partially an application to one or several virtual machines (VMs) located in remote locations or access points (APs) close to the mobile terminal (MT). One of the APs (the serving AP) provides radio access to the MT and is connected to the VMs through non-ideal backhaul (BH) links. In this setting, we optimize the offloading strategy (including the joint optimization of radio and computational resources) to minimize the energy consumption at the MT subject to a maximum latency constraint. In addition, we propose robust designs to cope with imperfect acquisition of the channel state information (CSI) and the BH parameters. Our findings show that, as far as the energy-latency trade-off is concerned, the optimal order of activation of the VMs does not depend on their processing capabilities but the delays of the BH links. However, once a VM is selected to participate in the processing, the optimal amount of processing allocated to such VM depends on its computational capabilities as well as on the features (capacity and delay) of the BH link. Additionally, offloading decisions become more conservative as the uncertainty in CSI and BH parameters increases.

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“…And along with the rapid development of wireless communication, the demands for higher data rate and better performance of the whole network become more and more important, which have promoted the research enthusiasm on the improvement of spectral efficiency and effective interference management [1]. D2D communication is a service for the direct communication between devices without passing through the eNB.…”

Section: Introductionmentioning

confidence: 99%