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Mobile edge computing provides users with a cloud environment close to the edge of the wireless network, supporting the computing intensive applications that have low latency requirements. The combination of offloading with the wireless…

Systems and Control · Electrical Eng. & Systems 2021-03-08 Ruoyun Chen , Hancheng Lu , Pengfei Ma

In this paper, we consider a heterogenous network (HetNet), where low-power indoor femtocells are deployed in the coverage area of the existing macro base station (MBS). This paper proposes a novel coordinated random beamforming and user…

Information Theory · Computer Science 2016-11-09 Jun Zhu , Hong-Chuan Yang

Popular content caching is expected to play a major role in efficiently reducing backhaul congestion and achieving user satisfaction in next generation mobile radio systems. Consider the downlink of a cache-enabled cloud radio access…

Information Theory · Computer Science 2016-09-07 Oussama Dhifallah , Hayssam Dahrouj , Tareq Y. Al-Naffouri , Mohamed-Slim Alouini

The deployment of small cells is expected to gain huge momentum in the near future, as a solution for managing the skyrocketing mobile data demand growth. Local caching of popular files at the small cell base stations has been recently…

Networking and Internet Architecture · Computer Science 2014-03-03 Konstantinos Poularakis , George Iosifidis , Vasilis Sourlas , Leandros Tassiulas

A simultaneously transmitting and reflecting surface (STARS) enabled edge caching system is proposed for reducing backhaul traffic and ensuring the quality of service. A novel Caching-at-STARS structure, where a dedicated smart controller…

Systems and Control · Electrical Eng. & Systems 2023-08-02 Zhaoming Hu , Ruikang Zhong , Chao Fang , Yuanwei Liu

We study physical layer multicasting in multicell networks where each base station, equipped with multiple antennas, transmits a common message using a single beamformer to multiple users in the same cell. We investigate two coordinated…

Information Theory · Computer Science 2012-10-23 Zhengzheng Xiang , Meixia Tao , Xiaodong Wang

With the explosive growth of mobile demand, small cells in millimeter wave (mmWave) bands underlying the macrocell networks have attracted intense interest from both academia and industry. MmWave communications in the 60 GHz band are able…

Networking and Internet Architecture · Computer Science 2015-09-25 Yong Niu , Li Su , Chuhan Gao , Yong Li , Depeng Jin , Zhu Han

The base station-mobile device communication traffic has dramatically increased recently due to mobile data, which in turn heavily overloaded the underlying infrastructure. To decrease Base Station (BS) interaction, intra-cell communication…

Information Theory · Computer Science 2021-10-04 Elif Haytaoglu , Erdi Kaya , Suayb S. Arslan

Use of aerial base stations (ABSs) is a promising approach to enhance the agility and flexibility of future wireless networks. ABSs can improve the coverage and/or capacity of a network by moving supply towards demand. Deploying ABSs in a…

Networking and Internet Architecture · Computer Science 2020-09-09 Elham Kalantari , Halim Yanikomeroglu , Abbas Yongacoglu

Caches in Content-Centric Networks (CCN) are increasingly adopting flash memory based storage. The current flash cache technology stores all files with the largest possible expiry date, i.e. the files are written in the memory so that they…

Networking and Internet Architecture · Computer Science 2016-06-24 Samta Shukla , Alhussein A. Abouzeid

With the introduction of caching capabilities into small cell networks (SCNs), new backaul management mechanisms need to be developed to prevent the predicted files that are downloaded by the at the small base stations (SBSs) to be cached…

Information Theory · Computer Science 2017-05-04 Kenza Hamidouche , Walid Saad , Mérouane Debbah , Ju Bin Song , Choong Seon Hong

This letter proposes two novel proactive cooperative caching approaches using deep learning (DL) to predict users' content demand in a mobile edge caching network. In the first approach, a (central) content server takes responsibilities to…

Networking and Internet Architecture · Computer Science 2018-12-14 Yuris Mulya Saputra , Dinh Thai Hoang , Diep N. Nguyen , Eryk Dutkiewicz , Dusit Niyato , Dong In Kim

We consider a backhaul-constrained coordinated cellular network. That is, a single-frequency network with $N+1$ multi-antenna base stations (BSs) that cooperate in order to decode the users' data, and that are linked by means of a common…

Information Theory · Computer Science 2008-02-07 Aitor del Coso , Sebastien Simoens

We study the coexistence problem in a two-tier heterogeneous network (HetNet) with cognitive small cells. In particular, we consider an underlay HetNet, where the cognitive small base station (C-SBS) is allowed to use the frequency bands of…

Information Theory · Computer Science 2016-12-16 Lin Zhang , Guodong Zhao , Wenli Zhou , Gang Wu , Ying-Chang Liang , Shaoqian Li

Statistical QoS provisioning as an important performance metric in analyzing next generation mobile cellular network, aka 5G, is investigated. In this context, by quantifying the performance in terms of the effective capacity, we introduce…

Information Theory · Computer Science 2017-08-22 Alireza Sadeghi , Michele Luvisotto , Farshad Lahouti , Michele Zorzi

A major barrier to wide adoption of Electric Vehicles (EVs) is the absence of reliable and equitable charging infrastructure. Poorly located charging stations create coverage gaps and slow down EV adoption, especially in underserved…

Optimization and Control · Mathematics 2026-02-03 Hamid Najafzad , Moddassir Khan Nayeem , Fuhad Ahmed Opu , Omar Abbaas , Gabriel Nicolosi

In this paper, we address two crucial challenges in the design of cell-free (CF) systems: degradation in the performance of CF systems by imperfect channel state information at the transmitter (CSIT) and high computational/signaling loads…

Information Theory · Computer Science 2023-07-18 A. Flores , R. C. de Lamare , K. V. Mishra

We consider content-level selective offloading of cellular downlink traffic to a wireless infostation terminal which stores high data-rate content in its cache memory. Cellular users in the vicinity of the infostation can directly download…

Information Theory · Computer Science 2014-07-24 Pol Blasco , Deniz Gündüz

This paper addresses the four enabling technologies, namely multi-user sparse code multiple access (SCMA), content caching, energy harvesting, and physical layer security for proposing an energy and spectral efficient resource allocation…

Information Theory · Computer Science 2018-08-15 Mohammad R. Abedi , Nader Mokari , Mohammad R. Javan , Eduard. A. Jorswieck

With small cell base stations (SBSs) densely deployed in addition to conventional macro base stations (MBSs), the heterogeneous cellular network (HCN) architecture can effectively boost network capacity. To support the huge power demand of…

Networking and Internet Architecture · Computer Science 2016-11-18 Shan Zhang , Ning Zhang , Sheng Zhou , Jie Gong , Zhisheng Niu , Xuemin , Shen