Cache-Aided Wireless Networks

The newest viral video could travel a network millions of times, thus creating a heavy load for the network. A solution to reducing network load is to prefetch popular content in local caches of network elements (e.g. small-cell base stations, wireless access points, or end-user devices) and to store that data for future requests of a popular file. Caching information at the wireless network edge is particularly suitable for the delivery of video content which has a stringent delay and bandwidth requirements. Caching is facilitated by storage capacity becoming exceedingly cheap.

The simplest form of caching is to store the most popular files at every edge cache. With edge caching popular files can be locally delivered by edge devices, while other requests are directly served by the source (e.g. macro base station), thus achieving what is referred to as a local caching gain. However, replicating content on many devices can result in an inefficient use of the aggregate cache capacity.

Recent studies have shown that a global caching gain can be enabled in wireless networks by storing different content portions across several caches and capitalizing on the spatial reuse of device-to-device communications, or exploiting globally cached information to multicast coded messages simultaneously useful to many users.

Network caching consists of two phases: the caching phase, during which library content are stored at receiver caches and which takes place at the network setup; and the delivery phase, during which the network is repeatedly used to satisfy the demands made by the receivers.

We study various important aspects of caching on wireless networks, such as:

Distortion-memory tradeoffs

We investigate the joint design of storage and transmission schemes for the efficient delivery of video-based services over next-generation heterogeneous wireless networks, by specifically considering the unique nature of video content and the wireless channel. We consider a scenario in which users store videos at different encoding rates (e.g. video layers in scalable video coding). The goal is to design caching and delivery schemes that, for a given broadcast rate, minimize the average squared error distortion experienced at user devices.

Correlation-Aware Distributed Caching and Coded Delivery

State of the art caching schemes exploit exact content reuse across the network, which, due to the personalized nature of the content consumed by users, can lead to limited efficiency of the scheme.
Distribution of correlated information across a network can lead to unnecessary transmission of redundant information. Paying attention to these redundancies can further help with the efficiency of content delivery to users. We aim to understand the fundamental limits of caching correlated content at base stations or user devices.

Caching, Delay, and Throughput Scaling in Tiered Networks

Caching can aid decrease the network load and transmission delay by having files be transmitted locally in lieu of having to traverse the entire network. An indirect benefit of caching is reduction of interference in the network, which in turn can lead to higher total network throughput. What will the network throughput and delay look like as density increases? How should caching be done to maintain throughput and delay gains as a network scales up in size? Scaling results are theoretical bounds on network performance which can elucidate tradeoffs among network parameters. We seek to understand how caching, delay, and throughput interact in highly dense networks which can lead us to improved network deployments.

People

• Faculty: Elza Erkip
• Postdoc: David Ramirez
• Students: Parisa Hassanzadeh, Çağlar Tunç

Collaborators

• Antonia Tulino, Jaime Llorca (Nokia, Bell Labs)

RESEARCH PAPERS


CitationView PapersResearch AreasDate

Y. Wang, Z. Jiao, Q. Yao, L.M. Balescu, Q. Liu, B. Tang, H.J.W. Zandvliet, “Structural and electronic properties of the α-GeSe surface,” Surface science 686, 17-21, Aug. 2019

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mobile edge, quantum devicesAugust 1, 2019

J. Yu, Y. Liu, “Field-of-view prediction in 360-degree videos with attention-based neural encoder-decoder networks,” Proceedings of the 11th ACM Workshop on Immersive Mixed and Virtual Environment Systems, June 2019

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mobile edgeJune 18, 2019

L. Mei, R. Hu, H. Cao, Y. Liu, Z. Han, F. Li, J. Li, “Realtime Mobile Bandwidth Prediction Using LSTM Neural Network,” International Conference on Passive and Active Network Measurement, 34-47, May 2019

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mobile edgeMay 28, 2019

G. Li, Y. Liu, B. Ribeiro, H. Ding, “On group popularity prediction in event-based social networks”, IEEE Transactions on Network Science and Engineering, May 2019

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mobile edgeMay 14, 2019

C. Li, W. Zhang, Y. Liu, Y. Wang, “Very Long Term Field of View Prediction for 360-degree Video Streaming,” 2019 IEEE Conference on Multimedia Information Processing and Retrieval (MIPR), May 2019

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mobile edgeMay 7, 2019

S. Xu, P. Liu, R. Wang, and S. Panwar, “Realtime scheduling and power allocation using deep neural networks,” in 2019 IEEE Wireless Communications and Networking Conference (WCNC) (IEEE WCNC 2019), Marrakech, Morocco, Apr. 2019.

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machine learning, mobile edgeApril 14, 2019

M. E. Knox. “Passive Interference Cancellation in a 2×2 STAR MIMO Antenna Network”. IEEE International Workshop on AntennaTechnology (iWAT) 2019, Recipient of Best Paper/Post award.

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mobile edgeApril 2, 2019

M. Knox, “Passive Interference Cancellation in a 2×2 STAR MIMO Antenna Network,” IEEE International Workshop on Antenna Technology (iWAT), March 2019.

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mobile edgeMarch 1, 2019

L. Sun, F. Duanmu, Y. Liu, Y. Wang, Y. Ye, H. Shi, D. Dai, “A two-tier system for on-demand streaming of 360 degree video over dynamic networks,” IEEE Journal on Emerging and Selected Topics in Circuits and Systems, Feb 2019

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mobile edgeFebruary 12, 2019

A. Khalili, F. Shirani, E. Erkip, and Y. C. Eldar, “On multiterminal communication over MIMO channels with one-bit ADCs at the receivers,” arXiv preprint arXiv:1901.10628, 2019.

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machine learning, mobile edgeJanuary 30, 2019

Y. Wang, Q. Yao, Z. Jiao, P. Bampoulis, L. Zhang, A.N. Rudenko, M.I. Katsnelson, “Charge puddles in germanene,” Applied physics letters 114 (4), 041601

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mobile edgeJanuary 28, 2019

A. Khalili, F. Shirani, E. Erkip, and Y. C. Eldar, “Tradeoff between delay and high SNR capacity in quantized MIMO systems,” arXiv preprintarXiv:1901.09844, 2019.

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machine learning, mobile edgeJanuary 28, 2019

P. Hassanzadeh, A. Tulino, J. Llorca, and E. Erkip, “Rate-Memory Trade-Off for Caching and Delivery of Correlated Sources,” IEEE Transactions on Information Theory, 2018

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mobile edgeDecember 1, 2018

S. Shahsavari, F. Shirani, and E. Erkip, “Opportunistic temporal fair scheduling for non-orthogonal multiple access,” IEEE 56th Allerton Conference on Communication, Control, and Computing, 2018.

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mobile edgeOctober 2, 2018

S. Shahsavari, F. Shirani, and E. Erkip, “A general framework for temporal fair user scheduling in NOMA systems,” in IEEE Journal of Selected Topics in Signal Processing, 2019

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mobile edgeSeptember 17, 2018

Chenge Li, Gregory Dobler, Yilin Song, Xin Feng, Yao Wang “TrackNet: TrackNet: Simultaneous Detection and Tracking of Multiple Objects”.

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Computer Vision, mobile edgeSeptember 14, 2018

I. K. Jain, R. Kumar, S. Panwar, “Driven by Capacity or Blockage? A Millimeter Wave Blockage Analysis,” IEEE ITC30, Sep. 2018.

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mobile edge, terahertzSeptember 1, 2018

I. K. Jain, R. Kumar, S. Panwar, “Can Millimeter Wave Cellular Systems provide High Reliability and Low Latency? An analysis of the impact of Mobile Blockers,” e-print in arXiv.org:1807.04388, Jul. 2018.

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mobile edge, terahertzJuly 1, 2018

P. Hassanzadeh, A. Tulino, J. Llorca, E. Erkip, “On Coding for Cache-Aided Delivery of Dynamic Correlated Content,” in IEEE Journal on Special Areas in Communications, June 2018.

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mobile edgeJune 1, 2018

Q. Yang, P. Hassanzadeh, D. Gündüz, E. Erkip, “Centralized Caching and Delivery of Correlated Contents over a Gaussian Broadcast Channel,” in Proceedings of IEEE International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt), May 2018.

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mobile edgeMay 19, 2018

Liyang Sun, Guibin Tian, Guanyu Zhu, Yong Liu, Hang Shi, and David Dai,
“Multipath IP Routing on End Devices: Motivation, Design, and Performance”,
in the Proceedings of IFIP Networking 2018 Conference, May 2018.

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Computer Networks, mobile edgeMay 1, 2018

S. Shahsavari, F. Fund, E. Erkip, S. Panwar, “Capturing capacity and profit gains with base station sharing in mmWavecellular networks,” in IEEE INFOCOM Workshops, Millimeter-Wave Networked Systems (mmSys), 2018

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mobile edgeApril 26, 2018

S. Shahsavari, A. Ashikhmin, E. Erkip, and T. L. Marzetta, “Coordinated multi-point massive MIMO cellular systems with sectorized antennas,” 52nd IEEE Asilomar Conference on Signals, Systems, and Computers, 2018.

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machine learning, mobile edgeFebruary 20, 2018

N. V. Shende, Ö. Gürbüz and E. Erkip, “Half-Duplex or Full-Duplex Communications: Degrees of Freedom Analysis Under Self-Interference,” in IEEE Transactions on Wireless Communications, vol. 17, no. 2, pp. 1081-1093, Feb. 2018.

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mobile edge, terahertzFebruary 10, 2018

S. Shahsavari, A. Hosseini, C. Ng, E. Erkip, “Adaptive hybrid beamforming with massive phased arrays in macro-cellular networks,” IEEE 5G World Forum, 2018.

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mobile edgeFebruary 3, 2018

R. Kumar, R. Margolies, R. Jana, Y. Liu, S. Panwar, “WiLiTV: Reducing Live Satellite TV Costs using Wireless Relays”, in IEEE Journal on Selected Areas in Communications, February, 2018.

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5g and 6g apps, Distributed Core, mobile edge, terahertzFebruary 1, 2018

R. Kumar, A. Francini, S. Panwar, and S. Sharma, “Dynamic Control of RLC Buffer Size for Latency Minimization in Mobile RAN,” in Proc. of IEEE WCNC, Apr. 2018.

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Distributed Core, mobile edgeJanuary 24, 2018

P. Hassanzadeh, A. Tulino, J. Llorca, E. Erkip, “Broadcast Caching Networks with Two Receivers and Multiple Correlated Sources,” in Proceedings of IEEE Asilomar Conference on Signals, Systems and Computers (Asilomar), October 2017.

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mobile edgeOctober 1, 2017

Bo Yan, Shu Shi, Yong Liu, Weizhe Yuan, Haoqin He, Rittwik Jana, Yang Xu, and H.Jonathan Chao, “LiveJack: Integrating CDNs and Edge Clouds for Live Content Broadcasting”, in the Proceedings of ACM Multimedia, October 2017.

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mobile edge, videoOctober 1, 2017

M. Polese, M. Giordani, M. Mezzavilla, S. Rangan, M. Zorzi, “Improved Handover Through Dual Connectivity in 5G mmWave Mobile Networks,” in IEEE Journal on Selected Areas in Communications, vol.PP, no.99, pp.1-1, June 2017.

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mobile edge, terahertzJune 27, 2017

R. Ford, S. Rangan, E. Mellios, D. Kong and A. Nix, “Markov Channel-Based Performance Analysis for Millimeter Wave Mobile Networks,” 2017 IEEE Wireless Communications and Networking Conference (WCNC), San Francisco, CA, 2017, pp. 1-6.

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mobile edge, terahertzJune 1, 2017

P. Hassanzadeh, A. Tulino, J. Llorca, E. Erkip “Rate-Memory Trade-off for the Two-User Broadcast Caching Network with Correlated Sources”, in Proc. IEEE International Symposium Information Theory (ISIT), June 2017.

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Cache-Aided Wireless Networks, mobile edgeJune 1, 2017

S. Xu, P. Liu, and S. Panwar “Exploiting network similarity for latency prediction of edge devices,” 2017 IEEE International Conference on Communications (ICC), Paris, France, May 2017​.​

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mobile edgeMay 1, 2017

Z. Cao, S. Panwar, M. Kodialam, T. Lakshman, “Enhancing Mobile Networks With Software Defined Networking and Cloud Computing,” in IEEE/ACM Transactions on Networking , vol.PP, no.99, pp.1-14.

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Distributed Core, mobile edgeApril 11, 2017

M. Polese, R. Jana, M. Zorzi, “TCP in 5G mmWave Networks: Link Level Retransmissions and MP-TCP,” to be presented at 2017 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS), Atlanta, USA, May 2017.

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mobile edge, terahertzApril 4, 2017

S. Goyal, P. Liu, and S. Panwar. “Scheduling and power allocation in self-backhauled full duplex small cells.” 2017 IEEE International Conference on Communications (ICC). IEEE, 2017.

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mobile edgeApril 2, 2017

R. Ford, A. Sridharan, R. Margolies, R. Jana, S. Rangan “Provisioning Low Latency, Resilient Mobile Edge Clouds for 5G” arXiv:1703.10915 [cs.NI].

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mobile edge, terahertzMarch 31, 2017

R. Ford, M. Zhang, M. Mezzavilla, S. Dutta, S. Rangan and M. Zorzi, “Achieving Ultra-Low Latency in 5G Millimeter Wave Cellular Networks,” in IEEE Communications Magazine, vol. 55, no. 3, pp. 196-203, March 2017.

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mobile edge, terahertzMarch 3, 2017

F. Fund, S. Shahsavari, S. S. Panwar, E. Erkip, S. Rangan, “Resource Sharing Among mmWave Cellular Service Providers in a Vertically Differentiated Duopoly,” France, 2017, pp. 1-7.

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mobile edge, terahertzFebruary 22, 2017

F. Fund, S. Shahsavari, S. Panwar, E. Erkip, S. Rangan, “Resource sharing among mmWave cellular service providers in a vertically differentiated duopoly,” in Proceedings of International Conference on Communications (ICC), Next Generation Networking and Internet Symposium, 2017.

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mobile edgeFebruary 20, 2017

S. Shahsavari, D. Ramirez, and E. Erkip, “Joint User Scheduling and Power optimization in Full-Duplex Cells
with Successive Interference Cancellation,” 51st IEEEAsilomar Conference on Signals, Systems, and Computers, 2017.

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mobile edgeFebruary 20, 2017

M. Polese, M. Mezzavilla, S. Rangan, M. Zorzi, “Mobility Management for TCP on mmWave Networks”, mmNets 2017.

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mobile edge, terahertzJanuary 13, 2017

M. Polese, M. Zhang, M. Mezzavilla, J. Zhu, S. Rangan, S. Panwar, M. Zorzi, “A Split TCP Proxy Architecture for 5G mmWave Cellular Systems”, Asilomar 2017.

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mobile edge, terahertzJanuary 13, 2017

F. Fund, S. Shahsavari, S. S. Panwar, E. Erkip, and S. Rangan, “Do open resources encourage entry into the millimeter wave cellular service market?” in Proceedings of the Eighth Wireless of the Students, by the Students, and for the Students Workshop (S3), New York, NY, Oct. 2016, pp. 12–14.

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mobile edgeOctober 1, 2016

S. Goyal, C. Galiotto, N. Marchetti and S. Panwar (2016). Throughput and Coverage of a Mixed Full and Half Duplex Small Cell Network. Proceedings of the IEEE International Conference on Communications (ICC) 2016, Best Paper Award of ICC 2016.

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mobile edgeApril 2, 2016

S. Goyal, P. Liu, S. Panwar, R. A. DiFazio, R. Yang, E. Bala, “Full duplex cellular systems: Will doubling interference prevent doubling capacity?” IEEE Communications Magazine, May 2015.

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mobile edgeMay 14, 2015

T. Lu, Pei Liu, S. Panwar, “Shining a Light into the Darkness: How Cooperative Relay Communication Mitigates Correlated Shadow Fading,” 2015 IEEE 81st Vehicular Technology Conference (VTC Spring).

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mobile edgeApril 13, 2015

T. Lu, Pei Liu, S. Panwar “How long before I regain my signal,” 2015 49th Conference on Information Sciences and Systems (CISS).

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mobile edgeApril 13, 2015

Y. Zaki, T. Potsch, J. Chen, T. Ahmad, L. Subramanian “Dissecting Web Latency in Ghana,” ACM Internet Measurement Conference (IMC), 2014.

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mobile edgeNovember 5, 2014

“Cost-aware Mobile Web Browsing,” IEEE Pervasive Computing, September 2012.

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mobile edgeMarch 6, 2012

Jay Chen, Lakshminarayanan Subramanian, Eric Brewer,” SMS-based Web Search on Low-end Mobile Devices,” ACM MOBICOM, 2010

mobile edgeSeptember 20, 2010