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Related papers: Inter-tier Interference Suppression in Heterogeneo…

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Future multi-tier communication networks will require enhanced network capacity and reduced overhead. In the absence of Channel State Information (CSI) at the transmitters, Blind Interference Alignment (BIA) and Topological Interference…

Information Theory · Computer Science 2016-02-01 Vaia Kalokidou , Oliver Johnson , Robert Piechocki

Cloud radio access networks (C-RAN) enable a network platform for beyond the fifth generation of communication networks (B5G), which incorporates the advances in cloud computing technologies to modern radio access networks. Recently, rate…

Information Theory · Computer Science 2020-11-03 Alaa Alameer Ahmad , Yijie Mao , Aydin Sezgin , Bruno Clerckx

The cloud-radio access network (CRAN) is expected to be the core network architecture for next generation mobile radio systems. In this paper, we consider the downlink of a CRAN formed of one central processor (the cloud) and several…

Information Theory · Computer Science 2016-01-28 Oussama Dhifallah , Hayssam Dahrouj , Tareq Y. Al-Naffouri , Mohamed-Slim Alouini

Massive MIMO and C-RAN are two promising techniques for implementing future wireless communication systems, where a large number of antennas are deployed either being co-located at the base station (BS) or totally distributed at separate…

Information Theory · Computer Science 2015-10-28 Liang Liu , Rui Zhang

Joint radar-communications (JRC) is considered to be a vital technology in deploying the next generation systems, since its useful in decongestion of the radio frequency (RF) spectrum and utilising the same hardware resources for dual…

Information Theory · Computer Science 2022-11-16 Evangelos Vlachos , Aryan Kaushik

This article provides an overview of the state-of-art results on communication resource allocation over space, time, and frequency for emerging cognitive radio (CR) wireless networks. Focusing on the…

Information Theory · Computer Science 2016-11-17 Rui Zhang , Ying-Chang Liang , Shuguang Cui

In this paper, we study the stochastic optimization of cloud radio access networks (C-RANs) by joint remote radio head (RRH) activation and beamforming in the downlink. Unlike most previous works that only consider a static optimization…

Information Theory · Computer Science 2016-11-15 Jian Li , Jingxian Wu , Mugen Peng , Ping Zhang

Over-the-air computation (AirComp) integrates analog communication with task-oriented computation, serving as a key enabling technique for communication-efficient federated learning (FL) over wireless networks. However, owing to its analog…

Information Theory · Computer Science 2025-01-28 Wei Shi , Jiacheng Yao , Wei Xu , Jindan Xu , Xiaohu You , Yonina C. Eldar , Chunming Zhao

A hybrid beamformer (HBF) is designed for integrated sensing and communication (ISAC)-aided millimeter wave (mmWave) systems. The ISAC base station (BS), relying on a limited number of radio frequency (RF) chains, supports multiple…

Signal Processing · Electrical Eng. & Systems 2025-03-18 Jitendra Singh , Banda Naveen , Suraj Srivastava , Aditya K. Jagannatham , Lajos Hanzo

Hybrid beamforming is known to be a cost-effective and wide-spread solution for a system with large-scale antenna arrays. This work studies the optimization of the analog and digital components of the hybrid beamforming solution for remote…

Information Theory · Computer Science 2019-03-15 Jaein Kim , Seok-Hwan Park , Osvaldo Simeone , Inkyu Lee , Shlomo Shamai

This letter studies a cloud radio access network (C-RAN) with multiple intelligent reflecting surfaces (IRS) deployed between users and remote radio heads (RRH). Specifically, we consider the uplink transmission where each RRH quantizes the…

Signal Processing · Electrical Eng. & Systems 2021-04-12 Yu Zhang , Xuelu Wu , Hong Peng , Caijun Zhong , Xiaoming Chen

The line-of-sight dominant air-ground channels have posed critical interference issues in cellular-connected unmanned aerial vehicle (UAV) communications. In this paper, we propose a new base station (BS) cooperative beamforming (CB)…

Information Theory · Computer Science 2019-11-26 Weidong Mei , Rui Zhang

The cloud radio access network (C-RAN) is a promising network architecture for future mobile communications, and one practical hurdle for its large scale implementation is the stringent requirement of high capacity and low latency fronthaul…

Information Theory · Computer Science 2015-06-23 Xiongbin Rao , Vincent K. N. Lau

In cognitive radio (CR) communication systems, achieving high secondary user (SU) rate in the presence of strong cross-link interference with the primary user (PU) is challenging. In this letter, we exploit the emerging intelligent…

Information Theory · Computer Science 2020-03-10 Xinrong Guan , Qingqing Wu , Rui Zhang

We study downlink of multiantenna cloud radio access networks (C-RANs) with finite-capacity fronthaul links. The aim is to propose joint designs of beamforming and remote radio head (RRH)-user association, subject to constraints on users'…

Information Theory · Computer Science 2018-10-17 Kien-Giang Nguyen , Quang-Doanh Vu , Markku Juntti , Le-Nam Tran

In this work, we consider cloud RAN architecture and focus on the downlink of an antenna domain (AD) exposed to external interference from neighboring ADs. With system sum-rate as performance metric, and assuming that perfect channel state…

Information Theory · Computer Science 2016-11-17 Muhammad Mahboob Ur Rahman , Hadi Ghauch , Sahar Imtiaz , James Gross

A cloud radio access network (Cloud-RAN) is a network architecture that holds the promise of meeting the explosive growth of mobile data traffic. In this architecture, all the baseband signal processing is shifted to a single baseband unit…

Information Theory · Computer Science 2013-10-02 Yuanming Shi , Jun Zhang , Khaled B. Letaief

Integrating unmanned aerial vehicles (UAVs) as user equipment (UE) and base-stations (BSs) into an existing LTE-Advanced heterogeneous network (HetNet) can further enhance wireless connectivity and support emerging services. However, this…

Networking and Internet Architecture · Computer Science 2018-10-23 Abhaykumar Kumbhar , Hamidullah Binol , Ismail Guvenc , Kemal Akkaya

As a flexible and scalable architecture, heterogeneous cloud radio access networks (H-CRANs) inject strong vigor into the green evolution of current wireless networks. But the brutal truth is that energy efficiency (EE) improves at the cost…

Information Theory · Computer Science 2018-04-05 Yuzhou Li , Tao Jiang , Kai Luo , Shiwen Mao

Hybrid precoders and combiners are designed for cooperative cell-free multi-user millimeter wave (mmWave) multiple-input multiple-output (MIMO) cellular networks for low complexity interference mitigation. Initially, we derive an optimal…

Signal Processing · Electrical Eng. & Systems 2022-12-15 Meesam Jafri , Suraj Srivastava , Naveen K. D. Venkategowda , Aditya K. Jagannatham , Lajos Hanzo