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We consider a cache-aided interference network which consists of a library of $N$ files, $K_T$ transmitters and $K_R$ receivers (users), each equipped with a local cache of size $M_T$ and $M_R$ files respectively, and connected via a…

Information Theory · Computer Science 2021-01-05 Xiang Zhang , Nicholas Woolsey , Mingyue Ji

We consider a system comprising a library of $N$ files (e.g., movies) and a wireless network with $K_T$ transmitters, each equipped with a local cache of size of $M_T$ files, and $K_R$ receivers, each equipped with a local cache of size of…

Information Theory · Computer Science 2016-11-17 Navid Naderializadeh , Mohammad Ali Maddah-Ali , A. Salman Avestimehr

We consider the problem of cache-aided interference management in a network consisting of $K_{\mathrm{T}}$ single-antenna transmitters and $K_{\mathrm{R}}$ single-antenna receivers, where each node is equipped with a cache memory.…

Information Theory · Computer Science 2019-06-24 Enrico Piovano , Hamdi Joudeh , Bruno Clerckx

We consider a cache-aided interference network which consists of a library of $N$ files, $K_T$ transmitters and $K_R$ receivers (users), each equipped with a local cache of size $M_T$ and $M_R$ files respectively, and connected via a…

Information Theory · Computer Science 2020-08-18 Xiang Zhang , Nicholas Woolsey , Mingyue Ji

A $K_T \times K_R$ cache-aided wireless interference network, in which both the transmitters and the receivers are equipped with cache memories is studied. Each user requests one file from a library of $N$ popular files. The goal is to…

Information Theory · Computer Science 2017-03-14 Joan S. Pujol Roig , Filippo Tosato , Deniz Gündüz

An emerging trend of next generation communication systems is to provide network edges with additional capabilities such as storage resources in the form of caches to reduce file delivery latency. To investigate this aspect, we study the…

Information Theory · Computer Science 2018-03-13 Jaber Kakar , Alaa Alameer , Anas Chaaban , Aydin Sezgin , Arogyaswami Paulraj

We study the role of caches in wireless interference networks. We focus on content caching and delivery across a Gaussian interference network, where both transmitters and receivers are equipped with caches. We provide a constant-factor…

Information Theory · Computer Science 2019-01-08 Jad Hachem , Urs Niesen , Suhas Diggavi

Caching is an effective technique to improve user perceived experience for content delivery in wireless networks. Wireless caching differs from traditional web caching in that it can exploit the broadcast nature of wireless medium and hence…

Information Theory · Computer Science 2017-05-16 Youlong Cao , Meixia Tao , Fan Xu , Kangqi Liu

A multi-antenna broadcast channel scenario is considered where a base station delivers contents to cache-enabled user terminals. A joint design of coded caching (CC) and multigroup multicast beamforming is proposed to benefit from spatial…

Information Theory · Computer Science 2020-01-03 Antti Tölli , Seyed Pooya Shariatpanahi , Jarkko Kaleva , Babak Khalaj

In this paper, the available spatial Degrees-Of-Freedoms (DOF) in single antenna systems is exploited. A new coding scheme is proposed in which several data streams having fractional multiplexing gains are sent by transmitters and…

Information Theory · Computer Science 2016-11-18 Abolfazl Seyed Motahari , Shahab Oveis Gharan , Mohammad-Ali Maddah-Ali , Amir Keyvan Khandani

This paper studies caching in (K+L-1) x K partially connected wireless linear networks, where each of the K receivers locally communicates with L out of the K+L-1 transmitters, and caches are at all nodes. The goal is to design caching and…

Information Theory · Computer Science 2019-10-14 Fan Xu , Meixia Tao , Tiankai Zheng

This paper studies cache-aided interference networks with arbitrary number of transmitters and receivers, whereby each transmitter has a cache memory of finite size. Each transmitter fills its cache memory from a content library of files in…

Information Theory · Computer Science 2017-12-19 Antonious M. Girgis , Ozgur Ercetin , Mohammed Nafie , Tamer ElBatt

This paper studies cache-aided wireless networks in the presence of active intelligent reflecting surfaces (IRSs) from an information-theoretic perspective. Specifically, we investigate interference management in a cache-aided wireless…

Information Theory · Computer Science 2026-03-20 Abolfazl Changizi , Ali H. Abdollahi Bafghi , Mahtab Mirmohseni , Masoumeh Nasiri-Kenari

In this paper, the degrees of freedom (DoF) regions of constant coefficient multiple antenna interference channels are investigated. First, we consider a $K$-user Gaussian interference channel with $M_k$ antennas at transmitter $k$, $1\le…

Information Theory · Computer Science 2014-02-18 Mahdi Zamanighomi , Zhengdao Wang

In this paper, the $K$-user interference channel with secrecy constraints is considered with delayed channel state information at transmitters (CSIT). We propose a novel secure retrospective interference alignment scheme in which the…

Information Theory · Computer Science 2020-01-08 Mohamed Seif , Ravi Tandon , Ming Li

This paper studies the storage-latency tradeoff in the $3\times3$ wireless interference network with caches equipped at all transmitters and receivers. The tradeoff is characterized by the so-called fractional delivery time (FDT) at given…

Information Theory · Computer Science 2016-11-17 Fan Xu , Kangqi Liu , Meixia Tao

Integrating coded caching (CC) into multiple-input multiple-output (MIMO) communications can significantly enhance the achievable degrees of freedom (DoF) in wireless networks. This paper investigates a practical cache-aided asymmetric MIMO…

Information Theory · Computer Science 2026-03-11 Mohammad NaseriTehrani , MohammadJavad Salehi , Antti Tölli

Recently, it has been shown that in a cache-enabled interference channel, the storage at the transmit and receive sides are of equal value in terms of Degrees of Freedom (DoF). This is derived by assuming full Channel State Information at…

Information Theory · Computer Science 2017-01-24 Mohammad Ali Tahmasbi Nejad , Seyed Pooya Shariatpanahi , Babak Hossein Khalaj

This is an extended journal version of the conference paper published in ISIT 2025; submitted to IEEE Transactions on Communications (TCOM). Integrating coded caching (CC) into multiple-input multiple-output (MIMO) communications…

Information Theory · Computer Science 2026-03-20 Mohammad NaseriTehrani , MohammadJavad Salehi , Antti Tölli

The $K\times 2$ and $2\times K$, Multiple-Input Multiple-Output (MIMO) X channel with constant channel coefficients available at all transmitters and receivers is considered. A new alignment scheme, named \emph{layered interference…

Information Theory · Computer Science 2014-12-24 Seyyed Hassan Mahboubi , Mumtaz Hussain , Abolfazl Seyed Motahari , Amir Keyvan Khandani
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