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One of the key technologies for the future cellular networks is full duplex (FD)-enabled integrated access and backhaul (IAB) networks operating in the millimeter-wave (mmWave) frequencies. The main challenge in realizing FD-IAB networks is…

信息论 · 计算机科学 2021-04-02 Junkai Zhang , Navneet Garg , Mark Holm , Tharmalingam Ratnarajah

Modern 5G wireless cellular networks use massive multiple-input multiple-output (MIMO) technology. This concept entails using an antenna array at a base station to concurrently service many mobile devices that have several antennas on their…

信息论 · 计算机科学 2023-06-09 Evgeny Bobrov , Boris Chinyaev , Viktor Kuznetsov , Dmitrii Minenkov , Daniil Yudakov

To address the need for high-precision localization of climbing robots in complex high-altitude environments, this paper proposes a multi-sensor fusion system that overcomes the limitations of single-sensor approaches. Firstly, the…

机器人学 · 计算机科学 2025-10-27 Shuning Zhang , Zhanchen Zhu , Xiangyu Chen , Yunheng Wang , Xu Jiang , Peibo Duan , Renjing Xu

We study constructive interference based block-level precoding (CI-BLP) in the downlink of multi-user multiple-input single-output (MU-MISO) systems. Specifically, our aim is to extend the analysis on CI-BLP to the case where the considered…

信息论 · 计算机科学 2023-08-31 Yiran Wang , Yunsi Wen , Ang Li , Xiaoyan Hu , Christos Masouros

6G networks are expected to provide more diverse capabilities than their predecessors and are likely to support applications beyond current mobile applications, such as virtual and augmented reality (VR/AR), AI, and the Internet of Things…

信息论 · 计算机科学 2024-01-24 Md Saheed Ullah , Zulqarnain Bin Ashraf , Sudipta Chandra Sarker

In time-division duplexing (TDD) millimeter-wave (mmWave) massive multiple-input multiple-output (MIMO) systems, the reciprocity mismatch severely degrades the performance of the hybrid beamforming (HBF). In this work, to mitigate the…

信号处理 · 电气工程与系统科学 2022-11-03 Li Chen , Rongjiang Nie , Yunfei Chen , Weidong Wang

This paper aims to study the utilization of non-orthogonal multiple access (NOMA) in hybrid beamforming (HB) multi-user systems called HB-NOMA to serve a large number of mobile users (MUs). First, a sum-rate expression for the HB-NOMA…

信息论 · 计算机科学 2018-04-17 Mojtaba Ahmadi Almasi , Hani Mehrpouyan

The explosive growth of data results in more scarce spectrum resources. It is important to optimize the system performance under limited resources. In this paper, we investigate how to achieve weighted throughput (WTP) maximization for…

信息论 · 计算机科学 2023-05-26 Jiafei Fu , Pengcheng Zhu , Bo Ai , Jiangzhou Wang , Xiaohu You

In this letter, we consider optimal hybrid beamforming design to minimize the transmission power under individual signal-to-interference-plus-noise ratio (SINR) constraints in a multiuser massive multiple-input-multiple-output (MIMO)…

信号处理 · 电气工程与系统科学 2018-11-27 Guangda Zang , Ying Cui , Hei Victor Cheng , Feng Yang , Lianghui Ding , Hui Liu

Fifth generation (5G) wireless networks are expected to utilize wide bandwidths available at millimeter wave (mmWave) frequencies for enhancing system throughput. However, the unfavorable channel conditions of mmWave links, e.g., higher…

信息论 · 计算机科学 2017-02-06 Jiho Song , Junil Choi , David J. Love

Non-orthogonal multiple access (NOMA) and millimeter wave (mmWave) are two key enabling technologies for the fifth-generation (5G) mobile networks and beyond. In this paper, we consider mmWave NOMA systems with max-min fairness constraints.…

信息论 · 计算机科学 2021-01-07 Jinle Zhu , Qiang Li , Hongyang Chen , H. Vincent Poor

Multi-antenna technologies such as massive Multiple-Input Multiple-Output (massive MIMO) and beamforming are key features to enhance performance, in terms of capacity and coverage, by using a large number of antennas intelligently. With the…

网络与互联网体系结构 · 计算机科学 2020-02-12 Jalal Rachad , Ridha Nasri , Laurent Decreusefond

Due to the increasing demand of capacity in wireless cellular networks, the small cells such as pico and femto cells are becoming more popular to enjoy a spatial reuse gain, and thus cells with different sizes are expected to coexist in a…

网络与互联网体系结构 · 计算机科学 2011-05-05 Kyuho Son , Soohwan Lee , Yung Yi , Song Chong

Cell-free massive multiple-input multiple-output (CF mMIMO) provides good interference management by coordinating many more access points (APs) than user equipments (UEs). It becomes challenging to determine which APs should serve which UEs…

信息论 · 计算机科学 2022-12-06 Shuaifei Chen , Jiayi Zhang , Emil Björnson , Bo Ai

In a cell-free wireless network, distributed access points (APs) jointly serve all user equipments (UEs) within the their coverage area by using the same time/frequency resources. In this paper, we develop a novel downlink cell-free…

信息论 · 计算机科学 2021-03-23 Yasser Al-Eryani , Ekram Hossain

In this paper we carry out the asymptotic diversity analysis for millimeter-wave (mmWave) massive multiple-input multiple-output (MIMO) systems by using bit interleaved coded multiple beamforming (BICMB). First, a single-user mmWave system…

信息论 · 计算机科学 2019-03-15 Sadjad Sedighi , Ender Ayanoglu

Frequency range 2 (FR2) has become an integral part of 5G networks to fulfill the ever-increasing demand for data hungry-applications. However, radio signals in FR2 experience high path and diffraction loss, which also pronounces the…

网络与互联网体系结构 · 计算机科学 2023-06-27 Subhyal Bin Iqbal , Salman Nadaf , Umur Karabulut , Philipp Schulz , Anna Prado , Gerhard P. Fettweis , Wolfgang Kellerer

In this paper, a novel joint design of beamforming and power allocation is proposed for a multi-cell multiuser multiple-input multiple-output (MIMO) non-orthogonal multiple access (NOMA) network. In this network, base stations (BSs) adopt…

信息论 · 计算机科学 2018-06-13 Xiaofang Sun , Nan Yang , Shihao Yan , Zhiguo Ding , Derrick Wing Kwan Ng , Chao Shen , Zhangdui Zhong

In this paper, we consider uplink channel estimation for massive multi-input multi-output (MIMO) systems with partially connected hybrid beamforming (PC-HBF) structures. Existing beam design and channel estimation schemes are usually based…

信号处理 · 电气工程与系统科学 2025-06-03 Yufan Zhou , Yongbo Xiao , An Liu

The legacy beam management (BM) procedure in 5G introduces higher measurement and reporting overheads for larger beam codebooks resulting in higher power consumption of user equipment (UEs). Hence, the 3rd generation partnership project…