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Benefits of Self-Organizing Networks (SON) for Mobile Operators

Olav Østerbø, Ole Grøndalen
2012 Journal of Computer Networks and Communications  
It is therefore necessary to have a strategy for how and when different SON functions should be introduced in mobile networks.  ...  Mobile networks are getting more complex to configure, optimize and maintain.  ...  Mobility Robustness Optimization (MRO).  ... 
doi:10.1155/2012/862527 fatcat:ybzbz3m6rfcbbom755bovpnddm

Multi-Layer Mobility Load Balancing in a Heterogeneous LTE Network

Panagiotis Fotiadis, Michele Polignano, Daniela Laselva, Benny Vejlgaard, Preben Mogensen, Ralf Irmer, Neil Scully
2012 2012 IEEE Vehicular Technology Conference (VTC Fall)  
However this occurs at the cost of increased Radio Link Failures (RLF), a fact that might be critical for further applying MLB in real-time conversational services without additional mobility optimization  ...  This paper analyzes the behavior of a distributed Mobility Load Balancing (MLB) scheme in a multi-layer 3GPP (3rd Generation Partnership Project) Long Term Evolution (LTE) deployment with different User  ...  However, interference coordination in case of co-channel deployment, mobility management and efficient network utilization are major challenges for HetNets, and they should be tackled in an automated manner  ... 
doi:10.1109/vtcfall.2012.6399108 dblp:conf/vtc/FotiadisPLVMIS12 fatcat:gp6oshgorjdq7dryy77circj2a

A Survey on Handover Management: From LTE to NR

Muhammad Tayyab, Xavier Gelabert, Riku Jantti
2019 IEEE Access  
A detailed literature survey on radio access mobility in LTE, heterogeneous networks (HetNets) and NR is provided.  ...  INDEX TERMS Radio access mobility, cell selection, handover, LTE, 5G, NR, mobility enhancers.  ...  A distributed mobility robustness optimization algorithm was proposed in [34] to minimize HOFs due to RLFs by adjusting TTT and offset parameters.  ... 
doi:10.1109/access.2019.2937405 fatcat:6lz3fh267ja7fnwm6q5wdxhnju

On the use of radio environment maps for interference management in heterogeneous networks

Jordi Perez-Romero, Andreas Zalonis, Lila Boukhatem, Adrian Kliks, Katerina Koutlia, Nikos Dimitriou, Reben Kurda
2015 IEEE Communications Magazine  
After presenting a general architecture for including REM databases in different network entities, the paper analyzes the achievable benefits in relation to specific interference management techniques,  ...  This paper addresses the use of Radio Environment Maps (REMs) to support interference management optimization in heterogeneous networks composed of cells of different sizes and including both cellular  ...  REMs may support advanced optimization algorithms for interference coordination, efficient sharing of unlicensed bands, energy-efficient user-to-cell associations as well as backhauling aspects, e.g.,  ... 
doi:10.1109/mcom.2015.7180526 fatcat:j26hjzg3dfezfojwi3vtbddfey

A Comprehensive Survey on Mobility Management in 5G Heterogeneous Networks: Architectures, Challenges and Solutions

Emre Gures, Ibraheem Shayea, Abdulraqeb Alhammadi, Mustafa Ergen, Hafizal Mohamad
2020 IEEE Access  
Besides, this paper addresses the challenges and suggest possible solutions for the 5G mobility management.  ...  In this paper, we provide a comprehensive study on the mobility management in 5G HetNet in terms of radio resource control, the initial access and registration procedure of the user equipment (UE) to the  ...  In micro-macro HO, the target macro BS is premade secondary eNB, making mobility robust by supporting RRC signal replication in the case of DC for two macro BSs.  ... 
doi:10.1109/access.2020.3030762 fatcat:72pl4aunwjbsrpojd62fox74na

Interference Management Techniques in Small Cells Overlaid Heterogeneous Cellular Networks

Soumya Ranjan Samal
2018 Journal of Mobile Multimedia  
Now-a-days because of the rapid increase in mobile users mobile data has also raised.  ...  Looking toward this context heterogeneous networks (HetNets) play a vital role in future 5G wireless cellular network deployment.  ...  In LTE, they are also called enhanced NodeBs (eNBs).  ... 
doi:10.13052/jmm1550-4646.1432 fatcat:eix5h2qmwvbwpph4vpeph74aku

Artificial Intelligence-Based Techniques for Emerging Heterogeneous Network: State of the Arts, Opportunities, and Challenges

Xiaofei Wang, Xiuhua Li, Victor C. M. Leung
2015 IEEE Access  
In such emerging mobile heterogeneous networks (HetNets), there are a large number of technical challenges focusing on the efficient organization, management, maintenance, and optimization, over the complicated  ...  A detailed taxonomy of the related AI-based techniques of HetNets is also shown by discussing the pros and cons for various AI-based techniques for different problems in HetNets.  ...  For mitigating inter-cell and cross-tier interference coordination, the study in [51] explores ant colony optimization for dynamic sub-channel allocation by utilizing ACO for channel allocation.  ... 
doi:10.1109/access.2015.2467174 fatcat:qe4ahkbtp5behaapk5bqatjjta

Dual Connectivity for LTE-NR Cellular Networks: Challenges and Open Issues

Roberto Antonioli, Gabriela Parente, Carlos Silva, Diego Sousa, Emanuel Rodrigues, Tarcisio Maciel, Francisco Cavalcanti
2018 Journal of Communication and Information Systems  
The Dual Connectivity (DC) technology has gained a lot of momentum in the LTE Release 12 as a means to enhance the per-user throughput and provide mobility robustness.  ...  After that, we propose an extension of a utility-based resource allocation algorithm for DC scenarios.  ...  However, there is also the option of moving the common PDCP layer to the CN, being implemented in a new coordination entity that would play the role of a gateway for a group of LTE and NR eNBs in their  ... 
doi:10.14209/jcis.2018.28 fatcat:ilv5gur5zrgbxaskkhy5yaaq2e

Resource Allocation in Heterogeneous Networks: eICIC Approach [article]

Trung Kien Vu
2016 arXiv   pre-print
To manage the interference the 3GPP has introduced Enhanced Inter-Cell Interference Coordination (eICIC) techniques, Almost Blank SubFrame (ABSF) is one of the time-domain technique in the eICIC solutions  ...  In this thesis, we propose a dynamically optimal ABSF framework to enhance the small cell user downlink performance while maintains the macro user downlink performance.  ...  for all eNBs.  ... 
arXiv:1604.05773v2 fatcat:venr5pfd3vgq3myg744bmop6vi

A Distributed Power-Saving Framework for LTE HetNets Exploiting Almost Blank Subframes

Antonio Virdis, Giovanni Stea, Dario Sabella, Marco Caretti
2017 IEEE Transactions on Green Communications and Networking  
Almost Blank Subframes (ABS) have been defined in LTE as a means to coordinate transmissions in heterogeneous networks (HetNets), composed of macro and micro eNodeBs: the macro issues ABS periods, and  ...  Existing algorithms for ABS provisioning usually share resources proportionally among HetNet nodes in a long-term perspective (e.g., based on traffic forecast).  ...  We would like to thank Antonio Frangioni, professor of Operations Research at the University of Pisa, for his advice on ILP solution algorithms.  ... 
doi:10.1109/tgcn.2017.2714205 dblp:journals/tgcn/VirdisSSC17 fatcat:g2ygepznhjg3lkcc3hrehwdkwa

Interference Coordination Schemes for Wireless Mobile Advanced Systems: A Survey

Maissa Boujelben, Sonia Benrejeb, Sami Tabbane
2014 IOSR Journal of Electronics and Communication Engineering  
The originality of this work resides on the comparison between the different schemes and the perspective of developing a new interference coordination method available for 4G and beyond systems with small  ...  Mobile communication networks have witnessed a perpetual evolution since their launching as voice only networks.  ...  When an eNB receives overload indicator message, it can change the scheduling pattern to free the resources indicated in the overload indicator message, therefore, reducing the interference for cell edge  ... 
doi:10.9790/2834-09168090 fatcat:clm2otuztzgt5eomc2gajvcbxm

Autonomous Self-Optimization of Coverage and Capacity in LTE Cellular Networks

A. Engels, M. Reyer, Xiang Xu, R. Mathar, Jietao Zhang, Hongcheng Zhuang
2013 IEEE Transactions on Vehicular Technology  
Particularly, self-organized optimization of network coverage and network capacity is a key challenge to cope with the boost in mobile data traffic that is expected in the next years and to benefit from  ...  Self-organizing networks promise significant expenditure savings for operators when rolling out modern cellular network infrastructure, such as Long-Term Evolution (LTE) and LTE-Advanced systems.  ...  CONCLUSION AND FUTURE WORK In this paper, we have presented concepts, models, and algorithms for self-organized autonomous optimization of coverage and capacity in LTE MTNs.  ... 
doi:10.1109/tvt.2013.2256441 fatcat:xltl3moapzegnhkzla5p3hgwby

Enabling Green cellular networks: A survey and outlook

Antonio De Domenico, Emilio Calvanese Strinati, Antonio Capone
2014 Computer Communications  
In last couple of decades, cellular networks have revolutionized the way users access communication networks but they required a huge effort to operators for the development of a wireless infrastructure  ...  Different solutions have been proposed so far for improving the energy efficiency of wireless networks.  ...  On the contrary, the X2 interface is used to directly inter-connect neighbouring eNBs for enabling functionalities like mobility management, interference mitigation, energy saving procedures, and coordinated  ... 
doi:10.1016/j.comcom.2013.09.011 fatcat:g2ww2e5k2fb2hpei4cwwcmxufa

Millimeter-Wave Wireless LAN and Its Extension toward 5G Heterogeneous Networks

Kei SAKAGUCHI, Ehab Mahmoud MOHAMED, Hideyuki KUSANO, Makoto MIZUKAMI, Shinichi MIYAMOTO, Roya E. REZAGAH, Koji TAKINAMI, Kazuaki TAKAHASHI, Naganori SHIRAKATA, Hailan PENG, Toshiaki YAMAMOTO, Shinobu NANBA
2015 IEICE transactions on communications  
Moreover, two heterogeneous network (HetNet) architectures are also introduced to efficiently extend the coordinated mmw WLANs to be used for future 5 th Generation (5G) cellular networks.  ...  Then, we highlight the great need for coordinated transmissions among mmw APs as a key enabler for future high capacity mmw WLANs.  ...  EU and MIC in Japan.  ... 
doi:10.1587/transcom.e98.b.1932 fatcat:n6es4r3luzh57kggvctbw25iya

Performance Comparison of Dual Connectivity and Hard Handover for LTE-5G Tight Integration in mmWave Cellular Networks [article]

Michele Polese
2016 arXiv   pre-print
In particular, the LTE base stations can provide a coverage layer for 5G mobile terminals, because they operate on microWave frequencies, which are less sensitive to blockage and have a lower pathloss.  ...  MmWave communications are expected to play a major role in the Fifth generation of mobile networks.  ...  Its functionalities do not require synchronization, and having a single RRC protocol allows to optimize the control functionalities of the overall system.  ... 
arXiv:1607.04330v1 fatcat:g2ex3lkxmbffph7kftkihzjjnu
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