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Opportunistic analysis has traditionally relied on independence assumptions that break down in many interesting and useful network topologies. This paper develops techniques that expand opportunistic analysis to a broader class of networks,…

Information Theory · Computer Science 2015-03-19 Mohamed Abouelseoud , Aria Nosratinia

In this paper, optimal power allocation and capacity regions are derived for GSIC (groupwise successive interference cancellation) systems operating in multipath fading channels, under imperfect channel estimation conditions. It is shown…

Information Theory · Computer Science 2007-07-16 C. Comaniciu , H. V. Poor

With the emergence of machine-driven communi- cation, there is a renewed interest in the design of random multiple access schemes for networks with large number of active devices. Many of the recently proposed access paradigms are…

Information Theory · Computer Science 2018-01-12 Arman Hasanzadeh , Jean-Francois Chamberland , Krishna Narayanan

Properly designed precoders can significantly improve the spectral efficiency of multiple-input multiple-output (MIMO) relay systems. In this paper, we investigate joint source and relay precoding design based on the mean-square-error (MSE)…

Information Theory · Computer Science 2015-06-03 Rui Wang , Meixia Tao

Intelligent reflecting surface (IRS)-assisted unmanned aerial vehicle (UAV) communications are expected to alleviate the load of ground base stations in a cost-effective way. Existing studies mainly focus on the deployment and resource…

Information Theory · Computer Science 2023-12-11 Zhaolong Ning , Hao Hu , Xiaojie Wang , Qingqing Wu , Chau Yuen , F. Richard Yu , Yan Zhang

This paper proposes a joint transmitter-receiver design to minimize the weighted sum power under the post-processing signal-to-interference-and-noise ratio (post-SINR) constraints for all subchannels. Simulation results demonstrate that the…

Information Theory · Computer Science 2009-09-29 P. Ma , W. Wang , X. Zhao , K. Zheng

An adaptive iterative decision multi-feedback detection algorithm with constellation constraints is proposed for multiuser multi-antenna systems. An enhanced detection and interference cancellation is performed by introducing multiple…

Information Theory · Computer Science 2013-04-24 Peng Li , Jingjing Liu , Rodrigo C. de Lamare

A limited feedback based dynamic resource allocation algorithm is proposed for a relay cooperative network with Orthogonal Frequency Division Multiplexing (OFDM) modulation. A communication model where one source node communicates with one…

Signal Processing · Electrical Eng. & Systems 2020-03-13 Yong Liu , Wen Chen

In this paper, we investigated the downlink transmission problem of a cognitive radio network (CRN) equipped with a novel transmissive reconfigurable intelligent surface (TRIS) transmitter. In order to achieve low power consumption and…

Signal Processing · Electrical Eng. & Systems 2023-05-05 Ziwei Liu , Wen Chen , Zhendong Li , Jinhong Yuan , Qingqing Wu , Kunlun Wang

To boost the secrecy rate (SR) of the conventional directional modulation (DM) network and overcome the double fading effect of the cascaded channels of passive intelligent reflecting surface (IRS), a novel active IRS-assisted DM system…

Information Theory · Computer Science 2024-02-27 Rongen Dong , Feng Shu , Yongzhao Li , Jun Li , Yongpeng Wu , Jiangzhou Wang

We address the problem of power allocation and secondary user (SU) selection in the downlink from a secondary base station (SBS) equipped with a large number of antennas in an underlay cognitive radio network. A new optimization framework…

Signal Processing · Electrical Eng. & Systems 2019-03-20 Shailesh Chaudhari , Danijela Cabric

Many science and engineering applications involve solving a linear least-squares system formed from some field measurements. In the distributed cyber-physical systems (CPS), often each sensor node used for measurement only knows partial…

Distributed, Parallel, and Cluster Computing · Computer Science 2017-06-23 Lei Shi , Liang Zhao , Wen-Zhan Song , Goutham Kamath , Yuan Wu , Xuefeng Liu

Parallel least mean square-partial parallel interference cancelation (PLMS-PPIC) is a partial interference cancelation which employs adaptive multistage structure. In this algorithm the channel phases for all users are assumed to be known.…

Applications · Statistics 2007-10-24 Kamal Shahtalebi , Hamidreza Saligheh Rad , Golam Reza Bakhshi

With the increasing number of wireless communication systems and the demand for bandwidth, the wireless medium has become a congested and contested environment. Operating under such an environment brings several challenges, especially for…

Information Theory · Computer Science 2022-02-17 Onur Dizdar , Bruno Clerckx

This paper investigates the resource management problem in multi-carrier rate-splitting multiple access (MC-RSMA) systems with imperfect channel state information (CSI) and successive interference cancellation (SIC) for ultra-reliable and…

Signal Processing · Electrical Eng. & Systems 2024-04-23 Xiaoyu Ou , Shuping Dang , Zhihan Ren , Angela Doufexi

This chapter presents reduced-rank linearly constrained minimum variance (LCMV) algorithms based on the concept of joint iterative optimization of parameters. The proposed reduced-rank scheme is based on a constrained robust joint iterative…

Information Theory · Computer Science 2013-02-12 R. C. de Lamare

In this paper, we propose a widely-linear (WL) receiver structure for multiple access interference (MAI) and {jamming signal (JS)} suppression in direct-sequence code-division multiple-access (DS-CDMA) systems. A vector space projection…

Networking and Internet Architecture · Computer Science 2014-07-08 J. Yang , R. C. de Lamare

In this paper, we investigate the distributed power allocation for multi-cell OFDMA networks taking both energy efficiency and inter-cell interference (ICI) mitigation into account. A performance metric termed as throughput contribution is…

Information Theory · Computer Science 2014-01-22 Zesong Fei , Chengwen Xing , Na Li , Jingming Kuang

Cooperative rate splitting (CRS), built upon rate splitting multiple access (RSMA) and opportunistic user relaying, has been recognized as a promising transmission strategy to enhance the user fairness and spectral efficiency in…

Information Theory · Computer Science 2022-08-09 Kangchun Zhao , Yijie Mao , Zhaohui Yang , Lixiang Lian , Bruno Clerckx

This correspondence paper studies a network integrated sensing and communication (ISAC) system that unifies the interference channel for communication and distributed radar sensing. In this system, a set of distributed ISAC transmitters…

Information Theory · Computer Science 2022-03-24 Yi Huang , Yuan Fang , Xinmin Li , Jie Xu