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Wireless device-to-device (D2D) communication underlaying cellular network is a promising concept to improve user experience and resource utilization. Unlike traditional D2D communication where two mobile devices in the proximity establish…

Networking and Internet Architecture · Computer Science 2015-08-07 Monowar Hasan , Ekram Hossain

To improve the poor performance of distributed operation and non-scalability of centralized operation in traditional cell-free massive MIMO, we propose a cell-free distributed collaborative (CFDC) massive multiple-input multiple-output…

Signal Processing · Electrical Eng. & Systems 2023-03-30 Jiamin Li , Qijun Pan , Pengcheng Zhu , Dongming Wang , Xiaohu You

Device-to-device (D2D) communications as an underlay of a LTE-A (4G) network can reduce the traffic load as well as power consumption in cellular networks by way of utilizing peer-to-peer links for users in proximity of each other. This…

Networking and Internet Architecture · Computer Science 2014-12-25 Sajjad Mehri Alamouti , Ahmad R. Sharafat

With the exponential growth of mobile data, there are increasing interests to deploy small cells in millimeter wave (mmWave) bands to underlay the conventional homogeneous macrocell network as well as in exploiting device-to-device (D2D)…

Networking and Internet Architecture · Computer Science 2018-11-27 Yong Niu , Liren Yu , Yong Li , Zhangdui Zhong , Bo Ai , Sheng Chen

In a device-to-device (D2D) underlaid massive MIMO system, D2D transmitters reuse the uplink spectrum of cellular users (CUs), leading to cochannel interference. To decrease pilot overhead, we assume pilot reuse (PR) among D2D pairs. We…

Information Theory · Computer Science 2017-08-07 Hao Xu , Wei Xu , Zhaohui Yang , Jianfeng Shi , Ming Chen

Device-to-Device (D2D) communications is a technology that allows mobile users to relay information to each other, without access to the cellular network. In this paper, we consider how to dynamically select multi-hop routes for D2D…

Networking and Internet Architecture · Computer Science 2014-03-28 Yuan Hu , Weisi Guo , Siyi Wang

In this paper, we study the resource allocation problem for a cooperative device-to-device (D2D)-enabled wireless caching network, where each user randomly caches popular contents to its memory and shares the contents with nearby users…

Information Theory · Computer Science 2018-08-22 Jiaqi Liu , Shengjie Guo , Sa Xiao , Miao Pan , Xiangwei Zhou , Geoffrey Ye Li , Gang Wu , Shaoqian Li

Cooperative device to device (CD2D) communication has been considered to be a solution to capacity shortage problem. Combining multi-homing and CD2D techniques together can potentially improve network performance. We propose a novel…

Networking and Internet Architecture · Computer Science 2018-06-15 Long Chen , Jigang Wu , Hong-Ning Dai , Xiaoxia Huang

This letter investigates the power control and channel assignment problem in device-to-device (D2D) communications underlaying a non-orthogonal multiple access (NOMA) cellular network. With the successive interference cancellation decoding…

Information Theory · Computer Science 2017-10-17 Yijin Pan , Cunhua Pan , Zhaohui Yang , Ming Chen

In this paper, we present a framework for resource allocations for multicast device-to-device (D2D) communications underlaying a cellular network. The objective is to maximize the sum throughput of active cellular users (CUs) and feasible…

Networking and Internet Architecture · Computer Science 2017-05-05 Hadi Meshgi , Dongmei Zhao , Rong Zheng

We develop two distributed downlink resource allocation algorithms for user-centric, cell-free, spatially-distributed, multiple-input multiple-output (MIMO) networks. In such networks, each user is served by a subset of nearby transmitters…

Information Theory · Computer Science 2021-10-18 Hussein A. Ammar , Raviraj Adve , Shahram Shahbazpanahi , Gary Boudreau , Kothapalli Venkata Srinivas

We consider the multi-cell uplink (network MIMO) where M base-stations (BSs) communicate simultaneously with M user terminals (UTs). Although the potential benefit of multi-cell cooperation increases with M, the overhead related to learning…

Information Theory · Computer Science 2011-04-13 Jakob Hoydis , Mari Kobayashi , Merouane Debbah

For device-to-device (D2D) communications underlaying a cellular network with uplink resource sharing, both cellular and D2D links cause significant co-channel interference. In this paper, we address the critical issue of interference…

Networking and Internet Architecture · Computer Science 2017-10-24 Junnan Yang , Ming Ding , Guoqiang Mao

Large-scale distributed Multiuser MIMO (MU-MIMO) is a promising wireless network architecture that combines the advantages of "massive MIMO" and "small cells." It consists of several Access Points (APs) connected to a central server via a…

Networking and Internet Architecture · Computer Science 2015-04-02 Ryan Rogalin , Ozgun Bursalioglu , Haralabos Papadopoulos , Giuseppe Caire , Andreas Molisch , Antonios Michaloliakos , Vlad Balan , Konstantinos Psounis

Device-to-device (D2D) communications can result in spectral efficiency (SE) improvement of cellular networks when interference is addressed properly. For further improvement of overall network sum-rate, it can be assumed that multiple D2D…

Information Theory · Computer Science 2021-12-21 Mohammad Hossein Bahonar , Mohammad Javad Omidi

Migrating computational intensive tasks from mobile devices to more resourceful cloud servers is a promising technique to increase the computational capacity of mobile devices while saving their battery energy. In this paper, we consider a…

Networking and Internet Architecture · Computer Science 2016-11-15 Stefania Sardellitti , Gesualdo Scutari , Sergio Barbarossa

We consider a cooperative device-to-device (D2D) communication system, where the D2D transmitters (DTs) act as relays to assist cellular users (CUs) in exchange for the opportunities to use the licensed spectrum. To reduce the overhead, we…

Information Theory · Computer Science 2019-09-23 Yiling Yuan , Tao Yang , Yulin Hu , Hui Feng , Bo Hu

This paper studies the design of a decentralized multiuser multi-antenna (MIMO) system for spectrum sharing over a fixed narrow band, where the coexisting users independently update their transmit covariance matrices for individual…

Information Theory · Computer Science 2009-05-22 Rui Zhang , John M. Cioffi

Proactive wireless caching and device to device (D2D) communication have emerged as promising techniques for enhancing users' quality of service and network performance. In this paper, we propose a new architecture for D2D caching with…

Networking and Internet Architecture · Computer Science 2018-07-04 Ramy Amer , M. Majid Butt , Mehdi Bennis , Nicola Marchetti

This paper considers a scenario of short-range communication, known as device-to-device (D2D) communication, where D2D users reuse the downlink resources of a cellular network to transmit directly to their corresponding receivers. In…

Information Theory · Computer Science 2016-11-15 Serveh Shalmashi , Emil Björnson , Marios Kountouris , Ki Won Sung , Mérouane Debbah