The 4th International Workshop on Content Caching and Delivery in Wireless Networks (CCDWN)

June 15,  2020

Call for Papers

The constantly increasing mobile data traffic, the proliferation of multimedia services, and the fast emergence of low-latency services challenge the performance and even the economic viability of today’s wireless networks. At the same time, fascinating developments, such as the software-based control of networks, the deployment of multi-tier wireless systems, and the interplay of caching with communication signals, create fresh opportunities for optimizing the network operation through storage resources. Indeed, storage and caching can play today an instrumental role in the success of wireless networks by increasing the performance of the offered services, reducing the Operating and Capital Expenditures, and by enabling new innovative business models.

The Content Caching and Delivery in Wireless Networks (CCDWN) 2020 workshop aspires to bring together experts from academia and industry to discuss the latest developments in the following, non-exhaustive, list of topics:

Information-theoretic caching analysis

  • Fundamental limits of coded caching
  • Coded caching design with practical constraints
  • Scaling laws of cache networks

Caching in beyond-5G wireless systems

  • HetNet and device-to-device caching
  • Cloud and wireless edge caching solutions
  • Caching and cross-layer optimization
  • Secure caching and privacy-constrained caching
  • Caching in high mobility networks

Content caching and delivery

  • Design of (elastic) content delivery networks
  • Algorithms for storage installation and content placement
  • Novel aspects of video caching and streaming
  • Caching economics, cooperation and incentive mechanisms for caching
  • Caching models for information centric networks

Data analytics for caching

  • Analysis of request data, time-varying content popularity models
  • Popularity estimation and prediction of viral content
  • Interplay of social networks and caching
  • Learning algorithms for caching optimization

Caching for (Edge) Computing

  • Deployment of services at the wireless network edge
  • Caching of code libraries and network functions
  • Service chains and caching in wireless networks

CCDWN ‘20 will be co-located with WiOpt 2020 and take place on June 15, 2020.

(click here for PDF version of CFP)


Session 1


New Challenges in Caching

Speaker: Emilio Leonardi (Department of Electronics, Politecnico de Torino, Italy)


Caching Policies over Unreliable Channels

Paulo Sena, Igor Carvalho, Antonio Abelem (Dept. of Computer Science, UFPA, Brazil), György Dan (Dept. of Computer Science, KTH, Sweden), Daniel Menasche (Dept. of Computer Science, UFRJ, Brazil), Don Towsley (School of Information and Computer Sciences, UMass, USA)

Impact of Popular Content Relational Structure on Joint Caching and Recommendation Policies

Marina Costantini, Thrasyvoulos Spyropoulos (Dept. of Mobile Communications, Eurecom, France)

Content Preference-aware User Association and Caching in Cellular Networks

George Darzanos, Livia Elena Chatzieleftheriou, Merkourios Karaliopoulos, Iordanis Koutsopoulos (Dept. of Informatics, Athens University of Economics and Business, Greece)

Partial Service Caching at the Edge

Sri Prakash Rudrabhotla, Nikhil Karamchandani, Kavitha Veeraruna, Sharayu Moharir (Dept. of Electrical Eng., IIT Bombay, India)

Session 2


Coded caching and distributed computing over wireless channels

Speaker: Petros Elia (Dept. of Mobile Communications, Eurecom, France)


Cache-aided Interference Alignment for Multiuser Private Information Retrieval

Xiang Zhang (Dept. of ECE, University of Utah, USA), Kai Wan (Dept. of EECS, TU Berlin, Germany), Hua Sun (Dept. of EE, University of North Texas, USA), Mingyue Ji (Dept. of ECE, University of Utah, USA), Giuseppe Caire (Dept. of EECS, TU Berlin, Germany)

Age of Information Aware Cache Updating with File- and Age-Dependent Update Durations

Haoyue Tang (Dept. of EE, Tsinghua University, China), Philippe Ciblat (Dep. of Comm. and Electronics, Telecom ParisTech, France), Jintao Wang (Dept. of EE, Tsinghua University, China), Michèle Wigger (Inf. Processing and Comm. Lab, Telecom ParisTech, France), Roy Yates (Dept. of ECE, Rutgers University, USA)

Stochastic D2D Caching with Energy Harvesting Nodes

Homa Nikbakht, Sarah Kamel, Michèle Wigger (Inf. Processing and Comm. Lab, Telecom ParisTech, France), Aylin Yener (Wireless Comm. and Networking Lab, Pennsylvania State University, USA)

In-network packet-level caching for error recovery in ICN

Yannis Thomas, George Xylomenos, George C. Polyzos (Dept. of Informatics, Athens University of Economics and Business, Greece)

Keynote Speakers

Emilio Leonardi

Talk title:  New Challenges in Caching


In my  talk first, I will  briefly, review  some challenging aspects in the  related to  the  design and the analysis  of  caching system. Then I will focus on  similarity caching systems,  where a user request  for an object o that is not in the cache can be (partially) satisfied by a similar stored object o’,  at the cost of a loss of user utility that depends on a “distance”  between o and o’.  Similarity caching systems can be effectively  employed  in several application areas, like multimedia retrieval, recommender systems, genome study, and machine learning training/serving.  However, despite their relevance,  the behavior of such systems is far from being well understood.  I will present some recent work  in the area that provides a first comprehensive analysis of similarity caching in the offline, adversarial, and stochastic settings. Similarity caching raises significant new challenges, some  dynamic policies with some optimality guarantees have been recently proposed.  The behavior of similarity caching systems significantly deviates from exact caching,  leading to  the definition of NP-hard problems also in cases in which exact caching optimal policies have a simple structure.


Emilio Leonardi is currently a Professor at the Dipartimento di Elettronica  e Telecomunicazioni of Politecnico di Torino. His research interests are in the field of: performance evaluation of computer networks and distributed systems, network science, social networks, human centric computation. He has co-authored over 200 papers published in international journals and presented in leading international conferences.  He has participated in several national and European projects such as:  IST-SONATA and IST-DAVID, NoE e-Photon-One, Euro-FGI, FP7 STAMINA. He has also been involved in several consulting and research project with private industries, including Lucent Technologies-Bell Labs, IBM,  British Telecom, Alcatel and TILAB. He has been  the scientific coordinator of the European 7-th FP STREP project “NAPA-WINE” on P2P streaming applications, involving 11 European research institutions, operators and manufacturers. He participated in the editorial boards/technical program committees of several journals and conferences including:  IEEE Transactions on Parallel and Distributed Systems, IEEE Journal of Selected Areas of Communications, ACM Sigmetrics, IEEE Infocom, ACM MobiHoc. His h-index is 45 (Google-Scholar). 

Personal Webpage:

Petros Elias

Talk title: Coded caching and distributed computing over wireless channels


This presentation will discuss cache-aided clique-based communications as a means of achieving unparalleled performance in a variety of communication settings, while also briefly touching upon ramifications in distributed computing.
We will discuss some of the novel challenges that come about when combining caching, with PHY, load balancing, and content prediction. Central to all this is the idea of non-separability, where we show scenarios where the joint treatment of Caching and Comm can far outperform separable approaches that simply `concatenate’ existing caching techniques to existing Comm methods. The presentation can be of interest to any caching or distributed computing specialist who wishes to see how “things change” when considering cache-aided wireless (and thus interference-limited) channels, as well as of interest to Comm and networking experts who can see how existing approaches (e.g. multi-antenna or cooperative methods) can be changed in order to allow a splash of caching to provide unparalleled performance gains.


Petros Elia received the B.Sc. degree from the Illinois Institute of Technology, and the M.Sc. and Ph.D. degrees in electrical engineering from the University of Southern California (USC), Los Angeles, in 2001 and 2006 respectively. He is now a professor with the Department of Communication Systems at EURECOM in Sophia Antipolis, France. His latest research deals with the intersection of coded caching and feedback-aided communications in multiuser settings. He has also worked in the area of complexity-constrained communications, MIMO, queueing theory and cross-layer design, coding theory, information theoretic limits in cooperative communications, and surveillance networks. He is a Fulbright scholar, the co-recipient of the NEWCOM++ distinguished achievement award 2008-2011 for a sequence of publications on the topic of complexity in wireless communications, and the recipient of the ERC Consolidator Grant 2017-2022 on cache-aided wireless communications.

Personal Webpage:

Information for Authors


The submitted papers are expected to be six to eight (6-8) pages in the standard IEEE conference format. Submissions should be of sufficient detail to be evaluated by expert reviewers in the field. If full proofs cannot be accommodated due to space limitations, authors are encouraged to cite a publicly accessible long version of the submission that may be considered in the review.

WiOpt is technically co-sponsored by the IEEE Control Systems Society, IEEE Information Theory Society and IFIP. All papers will be published in the IFIP DL open library with Open Access, as well as on IEEE Xplore.

Important Dates

Paper submission

Notification of acceptance 

Camera ready

Workshop date

April 5, 2020

April 30, 2020

May 12, 2020

June 15, 2020


Workshop Chairs:

Mari Kobayashi, CentraleSupélec

George Iosifidis, Trinity College Dublin

Technical Program Committee:​

Daniela TunettiUniversity of Illinois at Chicago
Mingyue JiUniversity of Utah
Kenza HamidouchePrinceton University
Jeongho KwakDaegu University
György DánKTH Royal Institute of Technology
Ejder BastugNokia, Bell Lab
George XylomenosAthens University of Economics and Business
Ioannis PsarasUniversity College London
Petros EliaEURECOM
Thrasyvoulos SpyropoulosEURECOM
Sheng YangCentraleSupélec
Georgios PaschosAmazon
Giuseppe Caire
Technical University of Berlin
Antonia Tulino
University of Naples Federico II
Close Menu