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LTE Advanced

About: LTE Advanced is a research topic. Over the lifetime, 4055 publications have been published within this topic receiving 74262 citations. The topic is also known as: Long-Term Evolution Advanced & LTE-A.


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TL;DR: Enhanced D2D-based solutions are proposed that decrease the uploading time of this UE based on the cooperative sharing of the resources allocated by the eNodeB to the cooperating devices.
Abstract: The reference scenario in this paper is a single cell in a Long Term Evolution-Advanced (LTE-A) system, where multiple user equipments (UEs) aim at uploading some data to a central server or to the Cloud The traditional uploading technique used in cellular systems, ie, with separate links from each UE to the eNodeB, is compared to innovative \textit{relay-based} schemes that exploit Device-to-Device (D2D) communications between two (or more) UEs in proximity to each other Differences in the channel quality experienced by the UEs offer an opportunity to develop D2D-based solutions, where \textit{(i)} the UE with a poor direct link to the eNodeB will forward data to a nearby UE over a high-quality D2D link; and \textit{(ii)} the receiving UE then uploads its own generated data and the relayed data to the eNodeB over a good uplink channel A straightforward gain in the data uploading time can be obtained for the first UE To extend the benefits, also to the relaying UE, enhanced D2D-based solutions are proposed that decrease the uploading time of this UE based on the cooperative sharing of the resources allocated by the eNodeB to the cooperating devices Finally, preliminary results are also presented for a multihop study case, where a chain of devices exploits D2D communications to upload data to the eNodeB

16 citations

Journal ArticleDOI
TL;DR: The proposed performance and security enhanced (PSE-AKA) protocol follows the cocktail therapy to generate the authentication vectors that improves the performance in terms of computation and communication overhead and reduces the bandwidth consumption from the network.
Abstract: In the mobile telecommunication network, Long term Evolution (LTE) is the most successful technological development for the industrial services and applications. The Evolved Packet System based Authentication and Key Agreement (EPS-AKA) was the first protocol proposed to authenticate the communication entities in the LTE network. But, the EPS-AKA protocol suffers from the single key exposure problem and is susceptible to various security attacks. Also, the protocol incurs high bandwidth consumption and computation overhead over the communication network. Moreover, the protocol doesn’t support the Internet of Things (IoT) based applications and has several security issues such as the privacy violation of the user identity and key set identifier (KSI). To resolve the above problems, various AKA protocols were proposed by the researchers. Unfortunately, none of the protocols succeeded to overcome the privacy preservation and single key exposure problem from the communication network. In this paper, we propose the performance and security enhanced (PSE-AKA) protocol for IoT enabled LTE/LTE-A network. The proposed protocol follows the cocktail therapy to generate the authentication vectors that improves the performance in terms of computation and communication overhead. The protocol preserves the privacy of objects, protects the KSI and avoids the identified attacks from the communication network. The formal verification and security analysis of the proposed protocol is carried out using the BAN logic and AVISPA tool respectively. The security analysis shows that the protocol achieves the security goals and secure against various known attacks. Finally, the performance analysis shows that the proposed protocol generates the less overhead and reduces the bandwidth consumption from the network.

16 citations

Proceedings ArticleDOI
22 Mar 2017
TL;DR: A MATLAB based simulator to measure the network performance in terms of throughput, energy efficiency (EE), and on-grid energy savings etc. considering tempo-spatial dynamics of traffic demand and optimizing the green energy utilization and thereby reducing the on- grid power consumption.
Abstract: In order to assess the performance of new energy efficient network technologies for green communication, network power consumption and system level simulations are crucial in LTE-Advanced (LTE-A). In this paper, we present a MATLAB based simulator to measure the network performance in terms of throughput, energy efficiency (EE), and on-grid energy savings etc. considering tempo-spatial dynamics of traffic demand. The simulator is built on renewable energy powered cellular network and is capable of evaluating the downlink performances under different coordinated multipoint (CoMP) schemes such as dynamic point selection (DPS) and joint transmission (JT). In JT transmission technique, the number of base stations (BSs) is not limited to two but can be extended to multiple numbers of BSs to serve a single user equipment (UE) for attaining a better quality of services (QoS). The proposed cellular network deploys individual energy storage device, renewable energy source, and resistive power lines among BSs for energy cooperation. The aim of this simulator is optimizing the green energy utilization and thereby reducing the on-grid power consumption. The simulator is offered for free under an academic, non-commercial use license, a first to the authors knowledge.

16 citations

Proceedings ArticleDOI
15 May 2013
TL;DR: In this paper, a performance evaluation of some cell selection techniques proposed for picocells in the Long Term Evolution-Advanced (LTE-A) networks is provided, and a comparison is provided in terms of cell throughput, cell edge throughput and PCCCH outage rate.
Abstract: This survey paper provides a performance evaluation of some cell selection techniques proposed for picocells in the Long Term Evolution-Advanced (LTE-A) networks. Picocell is the focus of this study because it can be deployed in areas with high volume of traffic (such as hotspots) so as to improve the overall system capacity. A number of techniques are evaluated such as maximum Reference Signal Received Power (RSRP), Cell Range Expansion (CRE) with static offset value and adaptive offset value as well as using Almost Blank Subframes (ABS) ratio. Then a comparison is provided in terms of cell throughput, cell edge throughput and Physical Downlink Control Channel (PDCCH) outage rate. The comparison described in this paper can be useful for readers interested to select the most appreciate cell selection technique for their particular goal.

16 citations

Journal ArticleDOI
TL;DR: Simulation results demonstrate that the energy consumption of the proposed novel energy-saving scheme is much better than that of existing schemes, when all schemes satisfy the same constraints.
Abstract: In parallel with the amazing increase in mobile data traffic, the fast-growing requirement and development of the green communication technology have led to many energy-saving designs in mobile networks. Meanwhile, as advanced cellular technologies progress, more than one component carrier (CC) can now be jointly utilized in a base station (BS). As a result, the energy consumption of the BS has become an important concern. In this paper, a novel green rate-and-power control transmission scheme is therefore proposed for the BS transmission to address the problem of energy minimization at BS transceivers subject to certain quality-of-service and fairness requirements for all users. Communication activities in downlink transmissions of the BS with orthogonal frequency-division multiple access-based multi-CCs are considered. Simulation results demonstrate that the energy consumption of the proposed novel energy-saving scheme is much better than that of existing schemes, when all schemes satisfy the same constraints.

16 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202316
202242
202156
202082
2019135
2018192