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Radio resource management for uplink carrier aggregation in LTE-Advanced

Hua Wang, Claudio Rosa, Klaus I Pedersen
2015 EURASIP Journal on Wireless Communications and Networking  
This paper investigates the uplink resource allocation problem in the context of Long-Term Evolution (LTE)-Advanced systems with carrier aggregation (CA) and dual-cluster scheduling.  ...  On the other hand, they will introduce additional power back-off for the power amplifier in the user equipment (UE) with non-contiguous resource allocation.  ...  Acknowledgement The authors would like to express their gratitude to Nokia Networks colleagues Huiyu Yuan, Yuyu Yan, Jens Steiner, and Mads Brix for their assistance in the development of the system-level  ... 
doi:10.1186/s13638-015-0329-y fatcat:3mfygdmw4ndf7n6ng22mddnz7u

Adaptive MCS selection and resource planning for energy-efficient communication in LTE-M based IoT sensing platform

Nhu-Ngoc Dao, Minho Park, Joongheon Kim, Sungrae Cho, Yingfeng Zhang
2017 PLoS ONE  
In addition, a quantity-oriented resource planning (QORP) technique that utilizes these optimal MCS levels as main criteria for spectrum allocation has been proposed for better adapting to the sensing  ...  However, LTE-M may not be optimally exploited for directly supporting such low-datarate devices in terms of energy efficiency since it depends on core technologies of LTE that are originally designed for  ...  Acknowledgments The authors would like to thank Hoai Nam Bui Khac for his constructive and invaluable discussions to improve the quality of this paper. Author Contributions Conceptualization: NND.  ... 
doi:10.1371/journal.pone.0182527 pmid:28796804 pmcid:PMC5552094 fatcat:7dap4yy5xfelflrgnfzqoazt3q

Edge-prioritized channel- and traffic-aware uplink Carrier Aggregation in LTE-advanced systems

Rajarajan Sivaraj, Amit Pande, Kai Zeng, Kannan Govindan, Prasant Mohapatra
2012 2012 IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks (WoWMoM)  
The LTE-A UEs are spatially-grouped and the under-represented edge UE groups, having the least assignable resources, are prioritized for CA.  ...  LTE-Advanced (LTE-A) systems support wider transmission bandwidths and hence, higher data rates for bulk traffic, as a result of Carrier Aggregation (CA).  ...  In [5] , PFPS scheduling for LTE in the uplink is explored, considering the contiguous allocation of sub-carriers and resource blocks to the UEs, supported by Single Carrier-FDMA.  ... 
doi:10.1109/wowmom.2012.6263691 dblp:conf/wowmom/SivarajPZGM12 fatcat:irbpnk73fba5zdwee6yhkm56zi

Reproducible LTE uplink performance analysis using precomputed interference signals

Volker Pauli, Muhammad Danish Nisar, Eiko Seidel
2011 EURASIP Journal on Advances in Signal Processing  
The consideration of realistic uplink inter-cell interference is essential for the overall performance testing of future cellular systems, and in particular for the evaluation of the radio resource management  ...  In this article, we propose the use of realistic precomputed interference patterns for LTE uplink performance analysis and testing.  ...  A H (ϕ) = − min 12 ϕ ϕ 3dB 2 , A m , with 3dB = 70°A V (θ ) = − min 12 θ − θ e -tilt θ 3dB 2 , SLA , with θ 3dB = 10°, θ e-tilt = {15°,6°} Figure 4 4 Uplink inter-cell interference snapshot for full  ... 
doi:10.1186/1687-6180-2011-61 fatcat:76yiq77zy5ejdgw6nnfg6hozui

Performance Analysis of Several Functional Splits in C-RAN

Jialong Duan, Xavier Lagrange, Frederic Guilloud
2016 2016 IEEE 83rd Vehicular Technology Conference (VTC Spring)  
Then A i is mapped to a group of M i adjacent sub-carriers of X i , whose remaining sub-carriers are allocated with zeros. This is called localized sub-carrier mapping.  ...  In LTE uplink with 20 MHz bandwidth, there are 2048 subcarriers. Therefore, the minimum sampling frequency f s = 2048 × ∆f = 2048 × 15 kHz = 30.72 MHz.  ... 
doi:10.1109/vtcspring.2016.7504410 dblp:conf/vtc/DuanLG16 fatcat:asl77ngwvzclpjhnbgpdcghjcy

Impact of CSI Feedback Strategies on LTE Downlink and Reinforcement Learning Solutions for Optimal Allocation

Alessandro Chiumento, Claude Desset, Sofie Pollin, Liesbet Van der Perre, Rudy Lauwereins
2016 IEEE Transactions on Vehicular Technology  
We show that dynamically allocating feedback resources can be beneficial for the network.  ...  resource allocation strategies.  ...  RB M ) · N U The uplink bandwidth of the LTE system, although using SC-FDMA instead of OFDMA, also employs PRBs containing an identical number of modulation symbols per physical resource block as the  ... 
doi:10.1109/tvt.2016.2531291 fatcat:jnayrdp2kbac7knb33dz4normq

Performance analysis of LTE-advanced networks in different spectrum bands

Fourat Haider, Erol Hepsaydir, Nicola Binucci
2011 2011 Wireless Advanced  
Although Long Term Evolution (LTE) network performance was studied by other researchers, the aim of this paper is to analyse the performance of LTE Carrier Aggregation (CA) in different spectrum bands  ...  Hutchison 3G under the brand name of Three launched 3rd Generation Partnership Project, 3GPP Rel 5 High Speed Downlink Packet Access (HSDPA) networks, worldwide.  ...  Signal-to-Interference-plus-Noise-Ratio Analysis The received SINR for the channel eNodeB-UE link on carrier component c in the PRB k at sub-frame t is given by SINR m n (t, k, c) = P l m n (c)|h m n (  ... 
doi:10.1109/wiad.2011.5983260 fatcat:zwzcmrlzrbf73kzhaw4ntwau4a

NB-IoT and LTE-M towards massive MTC: Complete performance evaluation for 5G mMTC

Adil Abou El Hassan, Abdelmalek El Mehdi, Mohammed Saber
2021 Indonesian Journal of Electrical Engineering and Computer Science  
For this purpose, the third generation partnership project (3GPP) has introducedtwo novel cellular IoT technologies supporting mMTC, known as NB-IoT and LTE-M.  ...  This paper aims to determine the system configuration and deployment required forNB-IoT and LTE-M technologies to fully meet the 5G mMTC requirements in termsof coverage, throughput, latency, battery life  ...  Also, to further improve the LTE-M connection density, the sub-PRB resource allocation in uplink that has been introduced in 3GPP Rel-15 can be used for low base station density scenarios.  ... 
doi:10.11591/ijeecs.v23.i1.pp308-320 fatcat:cljuv55qs5hbdgml5o3ihco2mm

An LTE Uplink Receiver PHY benchmark and subframe-based power management

Magnus Sjalander, Sally A. McKee, Peter Brauer, David Engdal, Andras Vajda
2012 2012 IEEE International Symposium on Performance Analysis of Systems & Software  
We present an open-source LTE Uplink Receiver PHY benchmark with a realistic representation of the baseband processing of an LTE base station, and we demonstrate its usefulness in investigating resource  ...  workload of each subframe and using these estimates to control power-gating, we reduce power consumption by more than 24% (11% on average) compared to executing the benchmark with no estimation-guided resource  ...  LTE OVERVIEW We first present a short overview of the resource allocation and signal processing in an LTE baseband uplink receiver.  ... 
doi:10.1109/ispass.2012.6189203 dblp:conf/ispass/SjalanderMBEV12 fatcat:y45le72ccbclpng6vwf37euvt4

Survey on the Research Challenges of Radio Resource Management in LTE-A and the Current Proposed Solutions for these Challenges

Huthaifa Al-Jaradat, Kumbesan Sandrasegaran
LTE) by providing data rate up to 1Gbps and 500 Mbps in the downlink and uplink directions, respectively, also by supporting higher speed mobility (i.e. 500 km/h).  ...  In order to allow such advances in the performance, Radio Resource Management (RRM) must be effectively utilized.  ...  PRB is the smallest transmission unit in the downlink LTE-Advanced. PRB comprises 12 sub-carriers, note that the sub-carriers are spaced by 15 KHz and the PRB has 180 KHz overall bandwidth.  ... 
doi:10.24297/ijct.v7i3.3442 fatcat:xiebuqte3jh7nmb353envgmpae

An auction approach to resource allocation with interference coordination in LTE-A systems

Mohammed S. ElBamby, Khaled M. F. Elsayed
2014 2014 IEEE Wireless Communications and Networking Conference (WCNC)  
We propose a resource allocation scheme based on the auction algorithm that aims at minimizing inter-cell interference (ICI) in multi-carrier LTE-A systems.  ...  The prices paid for resources by cell-edge users are infrequently exchanged between adjacent cells to help deciding who needs a specific resource the most.  ...  A resource allocation algorithm based on the auction method for uplink OFDMA cellular networks is proposed in [4] and is shown to offer near-optimal performance.  ... 
doi:10.1109/wcnc.2014.6952557 dblp:conf/wcnc/ElBambyE14 fatcat:drfbq5xmmrek3cmqarcqp62mga

Processing Radio Access Network Functions in the Cloud

Navid Nikaein
2015 Proceedings of the 6th International Workshop on Mobile Cloud Computing and Services - MCS '15  
This paper investigates three critical issues for the cloudification of the current LTE/LTE-A radio access network.  ...  Cloud radio access network is a novel architecture that perform the required base band and protocol processing on a centralized computing resources or a cloud infrastructure.  ...  Knopp for their useful discussions.  ... 
doi:10.1145/2802130.2802136 dblp:conf/mobicom/Nikaein15 fatcat:mxi47t52z5gy7odylpcn4ry6xq

On The Assessment of Human Exposure to Electromagnetic Fields Transmitted by 5G NR Base Stations

Helmut Keller
2019 Health Physics  
each PRB • DMRS sequence based on PUSCH • Contiguous PRB allocation Understanding the 5G NR Physical Layer Downlink and Uplink Channels Transport Channel Coding Chains Understanding the 5G NR Physical  ...  RB s c RB N N ·  Resource Elem ent (k, l) PRB # 0 15 kHz (µ = 0) 30 kHz (µ = 1) 60 kHz (µ = 2) 120 kHz (µ = 3) PRB # 0 PRB # 0 PRB # 0 PRB # 1 PRB # 1 PRB # 2 PRB # 3  ...  -MIMO • What are the differences between sub-6 GHz and mmWave bands with respect to MIMO?  ... 
doi:10.1097/hp.0000000000001089 pmid:31022013 fatcat:giq3iuad5razxloifwb3peq3su

Towards a Cloud-Native Radio Access Network [chapter]

Navid Nikaein, Eryk Schiller, Romain Favraud, Raymond Knopp, Islam Alyafawi, Torsten Braun
2016 Studies in Big Data  
We describe an example of real-time cloudified LTE network deployment using the OpenAirInterface (OAI) LTE implementation and OpenStack running on commodity hardware.  ...  allocated in the subframe; the same MCS for all PRBs) the OAI LTE FDD TX requires 2 times less processing time than the OAI LTE FDD RX.  ...  The smallest chunk of data transmitted by an eNB through the LTE FDD PHY is referred to as Physical Resource Block (PRB) and spans 12 sub-carriers (180 kHz) and 7 modulation symbols (0.5 ms), which gives  ... 
doi:10.1007/978-3-319-45145-9_8 fatcat:6x2rlz3blrgytb3hcg2la7usaa

A Multi-Service Oriented Multiple-Access Scheme For M2M Support in Future LTE [article]

Nassar Ksairi, Stefano Tomasin, Mérouane Debbah
2016 arXiv   pre-print
We propose a novel multiple-access technique to overcome the shortcomings of the current proposals for the future releases of Long-Term Evolution (LTE).  ...  While providing significant advantages for key future communications scenarios, MOMA can be incorporated into LTE with a limited impact on the protocol structure and the signaling overhead.  ...  This is the case, for example, of LTE for Machine-Type Communications (LTE-M) and Narrow-band LTE-M (NB LTE-M).  ... 
arXiv:1609.04549v1 fatcat:woqg4idgnzgr5gtabyi32gzkka
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