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3GPP LTE/SAE: An Overview

S. M. Chadchan, C. B. Akki
2010 International Journal of Computer and Electrical Engineering  
3GPP LTE/SAE is a next generation radio access system that supports future end-user requirements.  ...  The paper provides the valuable and concise information to the researchers in the area of 3GPP LTE and 4G.  ...  To achieve the targets, LTE employs the enabling technologies: Orthogonal Frequency Division Multiple Access (OFDMA), Single Carrier Frequency Division Multiple Access (SC-FDMA) and Multiple Input Multiple  ... 
doi:10.7763/ijcee.2010.v2.232 fatcat:wjg7sdydcnch7ftpycyw6euzvq

Performance of well known packet scheduling algorithms in the downlink 3GPP LTE system

Huda Adibah Mohd Ramli, Riyaj Basukala, Kumbesan Sandrasegaran, Rachod Patachaianand
2009 2009 IEEE 9th Malaysia International Conference on Communications (MICC)  
The 3GPP LTE uses orthogonal frequency division multiple access (OFDMA) in the downlink.  ...  When compared with the single carrier wireless systems that only schedule one user at each scheduling instant, the multi-carrier wireless systems schedule multiple users at each scheduling instant as there  ... 
doi:10.1109/micc.2009.5431383 fatcat:ln2p3qaqirbchnvzizzbgpbtbq

A characterization of resource allocation in LTE systems aimed at game theoretical approaches

Luca Anchora, Luca Canzian, Leonardo Badia, Michele Zorzi
2010 2010 15th IEEE International Workshop on Computer Aided Modeling, Analysis and Design of Communication Links and Networks (CAMAD)  
This paper proposes a novel approach, based on game theory, for radio resource allocation in the downlink of cellular networks using Orthogonal Frequency Division Multiple Access.  ...  The resource management issue is framed in the context of spectrum sharing, where multiple entities agree on utilizing the radio access channel simultaneously.  ...  In this technology, the multiple access scheme in the downlink uses Orthogonal Frequency Division Multiple Access (OFDMA).  ... 
doi:10.1109/camad.2010.5686968 dblp:conf/camad/AnchoraCBZ10 fatcat:k5nscntrhrd4bo4usy5s75jgte

Licensed-Assisted Access to Unlicensed Spectrum in LTE Release 13 [article]

Hwan-Joon Kwon, Jeongho Jeon, Abhijeet Bhorkar, Qiaoyang Ye, Hiroki Harada, Yu Jiang, Liu Liu, Satoshi Nagata, Boon Loong Ng, Thomas Novlan, Jinyoung Oh, Wang Yi
2016 arXiv   pre-print
As a result, one major enhancement for LTE in Release 13 has been to enable its operation in the unlicensed spectrum via Licensed-Assisted Access (LAA).  ...  In this article, we provide an overview of the Release 13 LAA technology including motivation, use cases, LTE enhancements for enabling the unlicensed band operation, and the coexistence evaluation results  ...  for multi-carrier LBT.  ... 
arXiv:1604.08632v1 fatcat:7wcyzqdkmbadznmypqslhl2qzq

Modeling and simulation of packet scheduling in the downlink long term evolution system

Huda Adibah Mohd Ramli, Kumbesan Sandrasegaran, Riyaj Basukala, Leijia Wu
2009 2009 15th Asia-Pacific Conference on Communications  
PF was originally developed to support the NRT service in a code division multiple access high data rate (CDMA-HDR) system.  ...  The size of the update window enable PF algorithm to maximize throughput and satisfy fairness for each user. IV.  ... 
doi:10.1109/apcc.2009.5375687 fatcat:qdvjh7rccfhgvk4prfhv2exmbq

Energy-Efficient Boundary-Enabled Scheduling in the Downlink of Multi-Carrier Multi-Access Heterogeneous Network

Ting Yang, Fabien Heliot, Chuan Heng Foh
2019 IEEE Transactions on Green Communications and Networking  
In this paper, we introduce a new concept of resource allocation boundary where EE and user fairness can be addressed simultaneously.  ...  We derive the boundary that partition in an effective manner the users into different groups.  ...  Multi-carrier multiple access schemes, such as orthogonal frequency-division multiplexing (OFDM)-based multiple access, provide a flexible framework for allowing numerous users to communicate at the same  ... 
doi:10.1109/tgcn.2018.2885848 fatcat:fqecdioybzactnxswifexq7j4e

Unified access in licensed and unlicensed bands in LTE-A Pro and 5G

Boon Loong Ng, Hongbo Si, Aris Papasakellariou, Jianzhong Charlie Zhang
2017 APSIPA Transactions on Signal and Information Processing  
This paper presents an overview of LAA and eLAA technical features and 5G NR design considerations to achieve a unified access in licensed and unlicensed bands.  ...  Spectrum scarcity has driven enhancements of Long-Term Evolution (LTE) in utilizing unlicensed bands in conjunction with licensed bands for delivering mobile data, resulting in the introduction of LTE  ...  Rel-14 eLAA also supports multi-subframe scheduling, where an uplink grant can schedule PUSCH transmissions in a number of multiple consecutive subframes ranging from two to four subframes.  ... 
doi:10.1017/atsip.2017.7 fatcat:we2fhjc4kjgvfc3ygr3bxz3bw4

Dedicated carrier deployment in heterogeneous networks with inter-site carrier aggregation

Hua Wang, Claudio Rosa, Klaus I. Pedersen
2013 2013 IEEE Wireless Communications and Networking Conference (WCNC)  
Collaborative inter-site carrier aggregation (CA) is proposed in scenarios with macro+RRH deployment to make an efficient use of the fragmented spectrum from multiple cells.  ...  Heterogeneous networks (HetNets) have been extensively discussed in 3GPP to further enhance the system throughput of traditional well-planned macrocell deployment.  ...  The gain brought by inter-site CA is mainly coming from cell "boundary" UEs with the help of joint multicell PF scheduler which allocates resources among UEs in a fair manner.  ... 
doi:10.1109/wcnc.2013.6554658 dblp:conf/wcnc/WangRP13 fatcat:737srb3rbzblrnyt3gnzvorl5i

Multi-User Visible Light Communications: State-of-the-Art and Future Directions

Saad Al-Ahmadi, Omar Maraqa, Murat Uysal, Sadiq M. Sait
2018 IEEE Access  
In this paper, we provide a comprehensive overview of multi-user VLC systems discussing the recent advances on multi-user precoding, multiple access, resource allocation, and mobility management.  ...  networked wireless technology.  ...  Non-orthogonal multiple access (NOMA) is a multiple access candidate scheme for beyond-5G networks [34] which can be applied in both MAC and BC channels.  ... 
doi:10.1109/access.2018.2879885 fatcat:y7ltnuy4yjfzzggeaolnasttz4

Nonorthogonal Multiple Access for 5G and Beyond

Yuanwei Liu, Zhijin Qin, Maged Elkashlan, Zhiguo Ding, Arumugam Nallanathan, Lajos Hanzo
2017 Proceedings of the IEEE  
.), as well as the dramatically increasing demand for user access required for the Internet of Things (IoT), the fifth generation (5G) networks face challenges in terms of supporting largescale heterogeneous  ...  the above-mentioned challenges in 5G networks by accommodating several users within the same orthogonal resource block.  ...  of LDS-CDMA in a multi-carrier form.  ... 
doi:10.1109/jproc.2017.2768666 fatcat:kpplouvkwbfurhitb3plb3y73m

Simplified Framework for Benchmarking Standard Downlink Scheduler over Long Term Evolution

Srinivasa R K, Hemanth Kumar
2021 International Journal of Advanced Computer Science and Applications  
Downlink scheduling is one of the essential operations when it comes to improving the quality of service in Long Term Evolution (LTE).  ...  The outcome shows HARQ scheduling to offer better performance in higher throughput, higher fairness, and lower delay over different test cases. 296 | P a g e II.  ...  The regular scheduler performance is assessed in macro-femtocells Hajjawi et al. [24] . A fair boundary scheduling algorithm is proposed by Rahman et al.  ... 
doi:10.14569/ijacsa.2021.0120136 fatcat:nyrhhshmmjfrleqcoo5vdzbaqq

5G Evolution: A View on 5G Cellular Technology Beyond 3GPP Release 15

Amitava Ghosh, Andreas Maeder, Matthew Baker, Devaki Chandramouli
2019 IEEE Access  
INDEX TERMS 5G new radio, 5G core, 5G system, non-public network, industrial IoT, time sensitive communication, ultra-reliable low-latency communications, integrated access and backhaul, converged edge  ...  In addition, some crucial new features, such as NR on unlicensed bands (NR-U), Integrated Access & Backhaul (IAB) and NR Vehicle-to-X (V2X), are also being introduced as part of Rel-16, as well as enhancements  ...  Merz, Kari Hooli, Jari Hulkkonen, Jun Tan, Jie Chen, Ryan Keating, Antti Toskala, Miikka Poikselka, Frank Hsieh, Oskari Tervo, Costas Samdanis, Ulrich Dropmann, and Suresh Nair for their extensive help in  ... 
doi:10.1109/access.2019.2939938 fatcat:7m6tj6a4kngvzkinf23c354mye

Frequency and time domain packet scheduling based on channel prediction with imperfect CQI in LTE [article]

Yongxin Wang, Kumbesan Sandrasegaran, Xinning Zhu, Jingjing Fei, Xiaoying Kong, Cheng-Chung Lin
2013 arXiv   pre-print
To alleviate the performance degradation due to simultaneous multiple imperfect channel quality information (CQI), a simple and efficient packet scheduling (PS) algorithm is developed in downlink LTE system  ...  Channel-dependent scheduling of transmission of data packets in a wireless system is based on measurement and feedback of the channel quality.  ...  Orthogonal frequency division multiple access (OFDMA) technology was chosen in the downlink LTE instead of other access technologies (e.g.  ... 
arXiv:1309.2139v1 fatcat:4bmwyjw5qrhs7ddj3b4w2jpmve

Adaptive Scheduling of Prioritized Traffic in IEEE 802.16j Wireless Networks

Debalina Ghosh, Ashima Gupta, Prasant Mohapatra
2009 2009 IEEE International Conference on Wireless and Mobile Computing, Networking and Communications  
The ORS (OFDMA Relay Scheduler) heuristic computes the zone boundaries (relay and access) in an uplink scheduling frame based on the number of RSs and MSs, the bandwidth demands and the link conditions  ...  In this paper we propose an adaptive scheduling algorithm for IEEE 802.16j based wireless broadband networks.  ...  Tang, Xue and Zhang [6] studied bandwidth allocation in multi-channel multihop wireless mesh networks. They try to maximize network throughput while enhancing fairness.  ... 
doi:10.1109/wimob.2009.59 dblp:conf/wimob/GhoshGM09 fatcat:mviqwuqsybbtzgeyqr6zfgf2ca

Distributed algorithm for downlink resource allocation in multicarrier small cell networks

Furqan Ahmed, Alexis A. Dowhuszko, Olav Tirkkonen
2012 2012 IEEE International Conference on Communications (ICC)  
This work discusses a distributed utility-based algorithm for downlink resource allocation (i.e., power and scheduling weights per carrier) in multicarrier SCNs.  ...  In small cell networks (SCNs) co-channel interference is an important issue, and necessitates the use of interference mitigation strategies that allocate resources efficiently.  ...  ACKNOWLEDGMENT This work was prepared in NETS2020 project framework and supported in part by Nokia Siemens Networks, Ericsson Finland, Nokia, Renesas Mobile, Elektrobit and Nethawk.  ... 
doi:10.1109/icc.2012.6364716 dblp:conf/icc/AhmedDT12 fatcat:x2qfbahxbjdbtnvffq3vlhxovq
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