3GPP LTE/SAE: An Overview

Chadchan, S. M.; Akki, C. B.

doi:10.7763/ijcee.2010.v2.232

Cited by 26 publications

(17 citation statements)

References 23 publications

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“…According to its performance specifications [20][21][22], the cellular technology 4G-LTE is apt at meeting the practical and standard/regulation requirements for V2X.…”

Section: Lte Performance Requirements Versus V2x Practical Requirementsmentioning

confidence: 99%

V2X Communication Technology: Field Experience and Comparative Analysis

Rakouth

Alexander

Brown

et al. 2012

Lecture Notes in Electrical Engineering

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The exploration is built upon Delphi's, Nissan's, Cohda Wireless' and Savari's experiences in Asia, Europe and U.S.A. It describes and derives lessons from all four companies' contributions in projects such as SMARTWAY in Japan, Drive C2X and in Europe, as well as the Connected Vehicle Safety Pilot in the U.S.A. All the above programs were implemented by means of the Dedicated Short Range Communication (DSRC) technology in the SHF spectrum based on the IEEE 802.11p/Wireless Access in Vehicular Environments (WAVE) standard. The study is supplemented with insights regarding complementary technologies such DSRC in the lower UHF frequency band (i.e. 700 MHz) as well as a V2X implementation through the 4G LTE (Long Term Evolution) cellular telecommunication technology. This paper addresses issues regarding the physical layer (PHY) of the DSRC system. The combination of the delay profile caused by multipath propagation along with the motion-based Doppler spread leads to time and frequency dispersion. This limits the number of bytes acceptable for reliable communication or requires a solution at the receiver end. The analysis of the Doppler spread shows that DSRC implemented at 700 MHz is more immune from data packet length issues as opposed to 5 GHz DSRC. On the other hand, 700 MHz DSRC exhibits a much longer delay spread. Thus, guard time interval specified in ASTM E2213-03 cannot be applied as is to 700 MHz DSRC. This paper refers to the German project CoCarX and the Japanese SKY for pedestrian for studying the feasibility a V2X system built on the 4G/LTE technology and its infrastructure. It provides on a vision for an accelerated V2X deployment based on a heterogeneous system. Last, we recommend the ITS stakeholders to carry out extensive research and validation works on DSRC capacity for ensuring a large scale deployment.

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“…According to its performance specifications [20][21][22], the cellular technology 4G-LTE is apt at meeting the practical and standard/regulation requirements for V2X.…”

Section: Lte Performance Requirements Versus V2x Practical Requirementsmentioning

confidence: 99%

V2X Communication Technology: Field Experience and Comparative Analysis

Rakouth

Alexander

Brown

et al. 2012

Lecture Notes in Electrical Engineering

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“…The architectural evolution of 3GPP LTE [4,5] based on the functionality, the architecture is split into two parts: a radio access network called E-UTRAN (Evolved Universal Terrestrial Radio Access Network) and a core network called EPC (Evolved packet Core) (Figure1). The E-UTRAN supports all radio related services such as scheduling, radio-resource handling, retransmission protocols, coding and various multi-antenna schemes.…”

Section: Lte System Overviewmentioning

confidence: 99%

Performance Evaluation of Multi Antenna Techniques in LTE

Mohankumar¹

2012

IJMNCT

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“…These aspects include Orthogonal Frequency Division Multiple Access (OFDMA), higher-order multiple input multiple output (MIMO), carrier aggregation, and heterogeneous networks (relays, picos and femtos) [1][2][3]. LTE-A has been put in place to support diverse IP-based traffic, such as voice, data and multimedia.…”

Section: Introductionmentioning

confidence: 99%

“…Some of them require guaranteed bit rate (GBR), and some applications do not require guaranteed bit rate [3]. The QoS parameters of the different traffic per user category can be significantly different as well.…”

Section: Introductionmentioning

confidence: 99%

Delay Aware and Users Categorizing-Based Call Admission Control for Multi-Services LTE-A Networks

AlQahtani

2016

Arab J Sci Eng

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In this paper, we introduce the user's privileges and traffic maximum delay tolerance as additional dimensions in the call admission control processes to efficiently control the utilization of LTE-A network resources. Based on this idea, we propose an efficient call admission control scheme named "Delay Aware and User Categorizing-based CAC with Adaptive Resource Reservation", where the user priority is adjusted dynamically based on the current network conditions and the users' categorizations and traffic delay tolerances, to increase the network's resource utilization and at the same time to maximize the operators' revenue. In this proposed scheme, the users are classified into Golden users and Silver users, and the type of service per user is classified as real-time (RT) and non-real-time (NRT) services. We compare the performance of the proposed scheme with the corresponding results of previous schemes, referred to as the adaptive resource reservation-based Call Admission Control (ARR-CAC), where user categorization and delay were not taken into consideration in the call admission control process. Simulation results indicate the superiority of the proposed scheme because it is able to achieve a better balance between system utilization, users' privileges provided by network operators and QoS provisioning compared to the ARR-CAC scheme.

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3GPP LTE/SAE: An Overview

Cited by 26 publications

References 23 publications

V2X Communication Technology: Field Experience and Comparative Analysis

V2X Communication Technology: Field Experience and Comparative Analysis

Performance Evaluation of Multi Antenna Techniques in LTE

Delay Aware and Users Categorizing-Based Call Admission Control for Multi-Services LTE-A Networks

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