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Caching at the network edge has emerged as a viable solution for alleviating the severe capacity crunch in modern content centric wireless networks by leveraging network load-balancing in the form of localized content storage and delivery.…

Information Theory · Computer Science 2016-06-15 Avik Sengupta , Ravi Tandon

To alleviate the burdens on the fronthaul and reduce the transmit latency, the device-to-device (D2D) communication is presented in cloud radio access networks (C-RANs). Considering dynamic traffic arrivals and time-varying channel…

Information Theory · Computer Science 2017-09-15 Yitao Mo , Mugen Peng , Hongyu Xiang , Yaohua Sun , Xiaodong Ji

Device-to-device (D2D) aided beamforming for coded caching is considered in finite signal-to-noise ratio regime. A novel beamforming scheme is proposed where the local cache content exchange among nearby users is exploited. The transmission…

Information Theory · Computer Science 2019-05-15 Hamidreza Bakhshzad Mahmoodi , Jarkko Kaleva , Seyed Pooya Shariatpanahi , Babak Khalaj , Antti Tölli

Coded caching is effective in leveraging the accumulated storage size in wireless networks by distributing different coded segments of each file in multiple cache nodes. This paper aims to find a wireless coded caching policy to minimize…

Signal Processing · Electrical Eng. & Systems 2020-10-20 Zhe Zhang , Meixia Tao

Non-orthogonal multiple access (NOMA) is widely viewed as a potential candidate for providing enhanced multiple access in future mobile networks by eliminating the orthogonal distribution of radio resources amongst the users. Nevertheless,…

Signal Processing · Electrical Eng. & Systems 2024-12-03 Aditya Powari , Daniel K. C. So

We consider the problem of streaming live content to a cluster of co-located wireless devices that have both an expensive unicast base-station-to-device (B2D) interface, as well as an inexpensive broadcast device-to-device (D2D) interface,…

Computer Science and Game Theory · Computer Science 2016-05-03 Jian Li , Rajarshi Bhattacharyya , Suman Paul , Srinivas Shakkottai , Vijay Subramanian

With the explosive growth of mobile data demand, there has been an increasing interest in deploying small cells of higher frequency bands underlying the conventional homogeneous macrocell network, which is usually referred to as…

Networking and Internet Architecture · Computer Science 2016-11-15 Yong Niu , Chuhan Gao , Yong Li , Li Su , Depeng Jin , Athanasios V. Vasilakos

In order to preserve the privacy of the users demands from other users, in this paper we formulate a novel information theoretic Device-to-Device (D2D) private caching model by adding a trusted server. In the delivery phase, the trusted…

Information Theory · Computer Science 2021-06-18 Kai Wan , Hua Sun , Mingyue Ji , Daniela Tuninetti , Giuseppe Caire

Device-to-device (D2D) technology is one of the key research areas in 5G/6G networks, and full-duplex (FD) D2D will further enhance its spectral efficiency (SE). In recent years, deep learning approaches have shown remarkable performance in…

Information Theory · Computer Science 2024-01-11 Xinxin Zhang , Lei Gao

It is well known that biology-inspired self-maintaining algorithms in wireless sensor nodes achieve near optimum time division multiple access (TDMA) characteristics in a decentralized manner and with very low complexity. We extend such…

Networking and Internet Architecture · Computer Science 2012-05-18 Dujdow Buranapanichkit , Yiannis Andreopoulos

The proliferation of portable devices (PDAs, smartphones, digital multimedia players, and so forth) allows mobile users to carry around a pool of computing, storage and communication resources. Sharing these resources with other users…

Distributed, Parallel, and Cluster Computing · Computer Science 2014-07-31 Moreno Marzolla , Stefano Ferretti , Gabriele D'Angelo

The essence of distributed computing systems is how to schedule incoming requests and how to allocate all computing nodes to minimize both time and computation costs. In this paper, we propose a cost-aware optimal scheduling and allocation…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-12-02 Wei Ren , Eleftherios Vlahakis , Nikolaos Athanasopoulos , Raphael Jungers

The cellular network coexisting with device-to-device (D2D) communications has been studied extensively. Reconfigurable intelligent surface (RIS) and non-orthogonal multiple access (NOMA) are promising technologies for the evolution of 5G,…

Information Theory · Computer Science 2023-04-20 Yukai Liu , Wen Chen , Kunlun Wang

In this paper, we aim at maximizing the cache offloading gain for a clustered \ac{D2D} caching network by exploiting probabilistic caching and cooperative transmission among the cluster devices. Devices with surplus memory probabilistically…

Signal Processing · Electrical Eng. & Systems 2018-11-28 Ramy Amer , Hesham ElSawy , Jacek Kibiłda , M. Majid Butt , Nicola Marchetti

Caching popular content at mobile devices, accompanied by device-to-device (D2D) communications, is one promising technology for effective mobile content delivery. User mobility is an important factor when investigating such networks, which…

Information Theory · Computer Science 2018-06-12 Rui Wang , Jun Zhang , S. H. Song , Khaled B. Letaief

In this paper, a reduced complexity algorithm is proposed for grouped-subcarriers and power allocation in the downlink of OFDMA packet access wireless systems. The available subcarriers for data communication are grouped into partitions…

Information Theory · Computer Science 2012-07-23 Noureddine Hamdi

Rate-splitting multiple access (RSMA) has been recognized as a promising physical layer strategy for 6G. Motivated by ever increasing popularity of cache-enabled content delivery in wireless communications, this paper proposes an innovative…

Information Theory · Computer Science 2022-04-26 Robert-Jeron Reifert , Alaa Alameer Ahmad , Yijie Mao , Aydin Sezgin , Bruno Clerckx

This paper studies the gains, in terms of served requests, attainable through out-of-band device-to-device (D2D) video exchanges in large cellular networks. A stochastic framework, in which users are clustered to exchange videos, is…

Information Theory · Computer Science 2016-11-17 Andrés Altieri , Pablo Piantanida , Leonardo Rey Vega , Cecilia G. Galarza

Device to Device (D2D) Communication is one of the technology components of the evolving 5G architecture, as it promises improvements in energy efficiency, spectral efficiency, overall system capacity, and higher data rates. The above noted…

Networking and Internet Architecture · Computer Science 2023-07-19 Iacovos Ioannou , Vasos Vassiliou , Christophoros Christophorou , Andreas Pitsillides

Device-to-device (D2D) communication is one of the most promising techniques for future wireless cellular communication systems. This paper considers coded caching in a partially cooperative wireless D2D network, where only a subset of…

Information Theory · Computer Science 2025-09-03 Rashid Ummer N. T. , K. K. Krishnan Namboodiri , B. Sundar Rajan
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