537 citations · 5.2k across the 258 of their papers we have counts for
21 papers · 2 filters
Cache-aided General Linear Function Retrieval
Kai Wan, Hua Sun, Mingyue Ji +2
Coded Caching, proposed by Maddah-Ali and Niesen (MAN), has the potential to reduce network traffic by pre-storing content in the users' local memories when the network is underuti…
A Novel Transformation Approach of Shared-link Coded Caching Schemes for Multiaccess Networks
Minquan Cheng, Kai Wan, Dequan Liang +2
This paper considers the multiaccess coded caching systems formulated by Hachem et al., including a central server containing files connected to cache-less users through an…
Pilot-Based Unsourced Random Access with a Massive MIMO Receiver in the Quasi-Static Fading Regime
Alexander Fengler, Peter Jung, Giuseppe Caire
In this work we treat the unsourced random access problem on a Rayleigh block-fading AWGN channel with multiple receive antennas. Specifically, we consider the slowly fading scenar…
WiFi-Based Channel Impulse Response Estimation and Localization via Multi-Band Splicing
Mahdi Barzegar Khalilsarai, Benedikt Gross, Stelios Stefanatos +2
Using commodity WiFi data for applications such as indoor localization, object identification and tracking and channel sounding has recently gained considerable attention. We study…
On the Fundamental Limits of Cache-aided Multiuser Private Information Retrieval
Xiang Zhang, Kai Wan, Hua Sun +2
We consider the problem of cache-aided Multiuser Private Information Retrieval (MuPIR) which is an extension of the single-user cache-aided PIR problem to the case of multiple user…
On the Tradeoff Between Computation and Communication Costs for Distributed Linearly Separable Computation
Kai Wan, Hua Sun, Mingyue Ji +1
This paper studies the distributed linearly separable computation problem, which is a generalization of many existing distributed computing problems such as distributed gradient de…
Dual-Polarized FDD Massive MIMO: A Comprehensive Framework
Mahdi Barzegar Khalilsarai, Tianyu Yang, Saeid Haghighatshoar +2
We propose a comprehensive scheme for realizing a massive multiple-input multiple-output (MIMO) system with dual-polarized antennas in frequency division duplexing (FDD) mode. Empl…
Coded Caching over Multicast Routing Networks
Mozhgan Bayat, Kai Wan, Giuseppe Caire
The coded caching scheme originally proposed by Maddah-Ali and Niesen (MAN) transmits coded multicast messages from a server to users equipped with caches via a capacitated shared-…
Cellular Networks With Finite Precision CSIT: GDoF Optimality of Multi-Cell TIN and Extremal Gains of Multi-Cell Cooperation
Hamdi Joudeh, Giuseppe Caire
We study the generalized degrees-of-freedom (GDoF) of cellular networks under finite precision channel state information at the transmitters (CSIT). We consider downlink settings m…
Cache-Aided Matrix Multiplication Retrieval
Kai Wan, Hua Sun, Mingyue Ji +2
Coded caching is a promising technique to smooth out network traffic by storing part of the library content at the users' local caches. The seminal work on coded caching for single…
Distributed Linearly Separable Computation
Kai Wan, Hua Sun, Mingyue Ji +1
This paper formulates a distributed computation problem, where a master asks distributed workers to compute a linearly separable function. The task function can be expressed as…
Joint Approximate Covariance Diagonalization with Applications in MIMO Virtual Beam Design
Mahdi Barzegar Khalilsarai, Saeid Haghighatshoar, Giuseppe Caire
We study the problem of maximum-likelihood (ML) estimation of an approximate common eigenstructure, i.e. an approximate common eigenvectors set (CES), for an ensemble of covariance…
Gaussian 1-2-1 Networks with Imperfect Beamforming
Yahya H. Ezzeldin, Martina Cardone, Christina Fragouli +1
In this work, we study bounds on the capacity of full-duplex Gaussian 1-2-1 networks with imperfect beamforming. In particular, different from the ideal 1-2-1 network model introdu…
Topological Coded Distributed Computing
Kai Wan, Mingyue Ji, Giuseppe Caire
This paper considers the MapReduce-like coded distributed computing framework originally proposed by Li et al., which uses coding techniques when distributed computing servers exch…
Fundamental Limits of Wireless Caching Under Mixed Cacheable and Uncacheable Traffic
Hamdi Joudeh, Eleftherios Lampiris, Petros Elia +1
We consider cache-aided wireless communication scenarios where each user requests both a file from an a-priori generated cacheable library (referred to as 'content'), and an uncach…
Optimality of Treating Inter-Cell Interference as Noise Under Finite Precision CSIT
Hamdi Joudeh, Giuseppe Caire
In this work, we study the generalized degrees-of-freedom (GDoF) of downlink and uplink cellular networks, modeled as Gaussian interfering broadcast channels (IBC) and Gaussian int…
Cache-Aided Modulation for Heterogeneous Coded Caching over a Gaussian Broadcast Channel
Mozhgan Bayat, Kai Wan, Mingyue Ji +1
Coded caching is an information theoretic scheme to reduce high peak hours traffic by partially prefetching files in the users local storage during low peak hours. This paper consi…
Queue-Aware Beam Scheduling for Half-Duplex mmWave Relay Networks
Xiaoshen Song, Giuseppe Caire
Millimeter wave (mmWave) bands are considered a powerful key enabler for next generation (5G) mobile networks by providing multi-Gbps data rates. However, their severe pathloss and…
Unsourced Multiuser Sparse Regression Codes achieve the Symmetric MAC Capacity
Alexander Fengler, Peter Jung, Giuseppe Caire
Unsourced random-access (U-RA) is a type of grant-free random access with a virtually unlimited number of users, of which only a certain number are active on the same time sl…
An Achievable Region for the Multiple Access Wiretap Channels with Confidential and Open Messages
Hao Xu, Giuseppe Caire, Cunhua Pan
This paper investigates the capacity region of a discrete memoryless (DM) multiple access wiretap (MAC-WT) channel where, besides confidential messages, the users have also open me…
On Optimal Load-Memory Tradeoff of Cache-Aided Scalar Linear Function Retrieval
Kai Wan, Hua Sun, Mingyue Ji +2
Coded caching has the potential to greatly reduce network traffic by leveraging the cheap and abundant storage available in end-user devices so as to create multicast opportunities…