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Edge caching for coverage and capacity-aided heterogeneous networks

Ejder Bastug, Mehdi Bennis, Marios Kountouris, Merouane Debbah
2016 2016 IEEE International Symposium on Information Theory (ISIT)  
A two-tier heterogeneous cellular network (HCN) with intra-tier and inter-tier dependence is studied.  ...  Under this model, we derive approximate expressions in terms of finite integrals for the average delivery rate considering inter-tier and intra-tier dependence.  ...  Consider a heterogeneous network consisting of mobile users, clustered cache-enabled small base stations (SBSs), macro base stations (MBSs) and central routers (CRs) for the backhaul.  ... 
doi:10.1109/isit.2016.7541306 dblp:conf/isit/BastugBKD16 fatcat:erngibuwo5ecrkrycpktkq36z4

Edge Caching for Coverage and Capacity-aided Heterogeneous Networks [article]

Ejder Baştuğ, Mehdi Bennis, Marios Kountouris, Mérouane Debbah
2016 arXiv   pre-print
A two-tier heterogeneous cellular network (HCN) with intra-tier and inter-tier dependence is studied.  ...  Under this model, we derive approximate expressions in terms of finite integrals for the average delivery rate considering inter-tier and intra-tier dependence.  ...  Consider a heterogeneous network consisting of mobile users, clustered cache-enabled small base stations (SBSs), macro base stations (MBSs) and central routers (CRs) for the backhaul.  ... 
arXiv:1605.00319v1 fatcat:2chyhfa7erdxvgg5k7xwn4gqry

User-in-the-loop for hethetnets with backhaul capacity constraints

Meisam Mirahsan, Rainer Schoenen, Halim Yanikomeroglu, Gamini Senarath, Ngoc Dung-Dao
2015 IEEE wireless communications  
In a network with finite backhaul capacity, for every point in the network, one of the following cases might happen: 1) The backhaul capacity is more than the wireless access link capacity.  ...  Meanwhile, the access connection between UEs and the base stations (BSs), and the backhaul connection between the BSs and the core IP network constitute the network supply capacity.  ... 
doi:10.1109/mwc.2015.7306537 fatcat:geo3tiky6vbhbbonzwcyejqcx4

Uplink Multicell Processing with Limited Backhaul via Per-Base-Station Successive Interference Cancellation

Lei Zhou, Wei Yu
2013 IEEE Journal on Selected Areas in Communications  
Further, this paper studies the optimal backhaul rate allocation problem for the per-base-station SIC model with a total backhaul capacity constraint, and shows that the sum-rate maximizing allocation  ...  should also have individual backhaul rates that scale logarithmically with the SINR at each base-station.  ...  for the uplink of a network MIMO system, in which the base-stations are connected to a centralized processor with finite capacity backhaul links.  ... 
doi:10.1109/jsac.2013.131002 fatcat:xm4wqy247rd3dbsjqlo3ubvzwy

Uplink Multicell Processing with Limited Backhaul via Per-Base-Station Successive Interference Cancellation [article]

Lei Zhou, Wei Yu
2013 arXiv   pre-print
number of bits to the maximal SIC rate with infinite-capacity backhaul, the backhaul capacity must scale logarithmically with the signal-to-interference-and-noise ratio (SINR) at each base-station.  ...  Under the per-base-station SIC framework, this paper further studies the impact of the limited-capacity backhaul links on the achievable rates and establishes that in order to achieve to within constant  ...  for the uplink of a network MIMO system, in which the base-stations are connected to a centralized processor with finite capacity backhaul links.  ... 
arXiv:1208.3024v2 fatcat:baasaekusbew7jpxr3vpyx2lhm

Sparse beamforming design for network MIMO system with per-base-station backhaul constraints

Binbin Dai, Wei Yu
2014 2014 IEEE 15th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)  
This paper considers the joint beamforming and clustering design problem in a downlink network multiple-input multiple-output (MIMO) setup, where the base-stations (BSs) are connected to a central processor  ...  with rate-limited backhaul links.  ...  In practice, network MIMO system can be realized by connecting the base-stations (BSs) to a central processor (CP) with high-speed backhaul links.  ... 
doi:10.1109/spawc.2014.6941658 dblp:conf/spawc/DaiY14 fatcat:jqpt3nh4fvf6pkfhcutstaqclq

Technical advances in the design and deployment of future heterogeneous networks

Adrian Kliks, Jordi Pérez-Romero, Lila Boukhatem, Andreas Zalonis
2015 EURASIP Journal on Wireless Communications and Networking  
networks, the concept of coordination in small cell networks, key backhaul aspects of HetNets, deployment issues and overall management strategies.  ...  In this editorial article we briefly summarize the recent technical advances in the design and deployment of future heterogeneous networks addressed in the papers that compose this special issue.  ...  The paper "Dynamic Switching off Algorithms for pico base stations in Heterogeneous Cellular Networks" by Wu et al.  ... 
doi:10.1186/s13638-015-0396-0 fatcat:2hq6ylaqxvcqpguzwrw2eixd64

Self-Optimizing Load Balancing With Backhaul-Constrained Radio Access Networks

Abdoulaye Tall, Zwi Altman, Eitan Altman
2015 IEEE Wireless Communications Letters  
We revisit the Base Station (BS) load definition taking into account the backhaul state.  ...  Simulation results for a backhaul constrained heterogeneous network illustrate how the correct load definition can guarantee a proper operation of the SON algorithm.  ...  Simulation results of load balancing in a heterogeneous network with small cells and limited backhaul capacity have illustrated the importance of using the correct load definition to avoid possible performance  ... 
doi:10.1109/lwc.2015.2477499 fatcat:ywvpvxcm3rgcbhuhj3qmg4prcm

A Feasibility Study On C-RAN

Thrishna S, Dr. Anto Sahaya Dhas
2018 Zenodo  
In BBU different algorithms are used to improve the capacity, joint decompression and decoding (JDD) and wyner ziv coding.  ...  Now a days the number of users of mobile phone are increasing exponentially, so it will cause jamming in the network and require large bandwidth So among promising technology candidates to overcome this  ...  Wei Yuet.al describes the uplink of a cloud radio access network where ever the cell sites are connected to a cloud computing-based central processor with noiseless backhaul links with finite capacities  ... 
doi:10.5281/zenodo.1492961 fatcat:mknkhoayn5gsvguk6b6mpi6v64

Energy optimization for full-duplex self-backhauled HetNet with non-orthogonal multiple access

Lei Lei, Eva Lagunas, Sina Maleki, Qing He, Symeon Chatzinotas, Bjorn Ottersten
2017 2017 IEEE 18th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)  
Towards efficient spectrum usage in ultra-dense heterogeneous networks, spectrum reuse between backhauling and access links combined with full duplex is applied.  ...  Index Terms-Non-orthogonal multiple access, wireless backhaul, full duplex, energy minimization, user clustering, heterogeneous network.  ...  This type of the network with in-band self-backhauling for base stations (BSs) and with capabilities of full-duplex and self-interference suppression, is known as a full-duplex self-backhauled heterogeneous  ... 
doi:10.1109/spawc.2017.8227665 dblp:conf/spawc/0001LMHCO17 fatcat:jwvgu4sdbnddbgtodhq5pbdhjm

Multi-Access Edge Computing Empowered Heterogeneous Networks: A Novel Architecture and Potential Works

June-Woo Ryu, Quoc-Viet Pham, Huynh N. T. Luan, Won-Joo Hwang, Jong-Deok Kim, Jung-Tae Lee
2019 Symmetry  
, flying base stations (BSs) can be equipped with MEC servers, and mobile users (MUs) need both communication and computation resources for their computationally heavy tasks.  ...  To overcome the rapid increase in traffic volume and offload the traffic from macrocells, a massive number of small cells have been deployed, so-called heterogeneous networks (HetNets).  ...  Multi-Access Edge Computing with Multiple Heterogeneous MEC Servers The purpose of this section is to present an MEC-based HetNet architecture, where the coexistence of wired and wireless backhaul links  ... 
doi:10.3390/sym11070842 fatcat:5xkq76gq4nbpth5gsbfqy3ypjm

Coordinated downlink multi-point communications in heterogeneous cellular networks

A. Barbieri, P. Gaal, S. Geirhofer, T. Ji, D. Malladi, Y. Wei, F. Xue
2012 2012 Information Theory and Applications Workshop  
In this paper we assess how coordination among base stations can be exploited to improve downlink capacity in fourth generation (4G) cellular networks.  ...  Secondly, we explore how a tighter coordination among base stations can be exploited to further improve the network capacity.  ...  In this paper we focus on the latter approach, with particular emphasis on networks composed of a mix of macro and pico base stations (BS) 2 .  ... 
doi:10.1109/ita.2012.6181826 dblp:conf/ita/BarbieriGGJMWX12 fatcat:3odeexf6pvbkzeg6jopqwiryh4

Optimized Backhaul Compression for Uplink Cloud Radio Access Network

Yuhan Zhou, Wei Yu
2014 IEEE Journal on Selected Areas in Communications  
This paper studies the uplink of a cloud radio access network (C-RAN) where the cell sites are connected to a cloud-computing-based central processor (CP) with noiseless backhaul links with finite capacities  ...  These results lead to an efficient algorithm for allocating the backhaul capacities in C-RAN. The performance of the proposed scheme is evaluated for practical multicell and heterogeneous networks.  ...  INTRODUCTION C LOUD Radio Access Network (C-RAN) is a future wireless network architecture in which base-station (BS) processing is uploaded to a cloud-computing based central processor (CP).  ... 
doi:10.1109/jsac.2014.2328133 fatcat:kpiab4rrhfgd3kck4mhpiupg3m

Performance comparison of data-sharing and compression strategies for cloud radio access networks

Pratik Patil, Binbin Dai, Wei Yu
2015 2015 23rd European Signal Processing Conference (EUSIPCO)  
The two strategies, namely the data-sharing strategy and the compression-based strategy, differ in the way the limited backhaul is utilized.  ...  However, the data-sharing strategy outperforms the compression strategy under low capacity backhauls primarily because of the large quantization loss at low backhaul capacity with compression.  ...  PERFORMANCE EVALUATION We consider a 7-cell wrapped-around two-tier heterogeneous network with simulation parameters as listed in Table 1 .  ... 
doi:10.1109/eusipco.2015.7362826 dblp:conf/eusipco/PatilDY15 fatcat:7lvv5a7hznfrnm2nxx6useqa6i

Femtocaching and Device-to-Device Collaboration: A New Architecture for Wireless Video Distribution [article]

Negin Golrezaei, Andreas F. Molisch, Alexandros G. Dimakis, Giuseppe Caire
2012 arXiv   pre-print
It is based on distributed caching of the content in femto-basestations with small or non-existing backhaul capacity but with considerable storage space, called helper nodes.  ...  We present a new architecture to handle the ongoing explosive increase in the demand for video content in wireless networks.  ...  ACKNOWLEDGMENT This work was supported by the Intel/Cisco VAWN (videoaware wireless networks) program. Useful discussions with Dr. Chris Ramming and Dr. Jeff Foerster (from Intel), as well as Prof.  ... 
arXiv:1204.1595v1 fatcat:jjur5jl7mzeztcq3tywanwmhfe
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