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相关论文: Optimal Transmission of Multi-Quality Tiled 360 VR…

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In this paper, we study the optimal wireless streaming of a multi-quality tiled 360 virtual reality (VR) video from a multi-antenna server to multiple single-antenna users in a multiple-input multiple-output (MIMO)-orthogonal frequency…

信号处理 · 电气工程与系统科学 2021-05-21 Chengjun Guo , Lingzhi Zhao , Ying Cui , Zhi Liu , Derrick Wing Kwan Ng

In this letter, we study optimal multicast of tiled 360 virtual reality (VR) video from one server (base station or access point) to multiple users in an orthogonal frequency division multiple access (OFDMA) system. For given video quality,…

信息论 · 计算机科学 2018-10-01 Chengjun Guo , Ying Cui , Zhi Liu

A 360 virtual reality (VR) video, recording a scene of interest in every direction, provides VR users with immersive viewing experience. However, transmission of a 360 VR video which is of a much larger size than a traditional video to…

信息论 · 计算机科学 2019-01-09 Kaixuan Long , Chencheng Ye , Ying Cui , Zhi Liu

In this letter, we study optimal multicast of tiled 360 virtual reality (VR) video from one server (base station or access point) to multiple users. We consider random viewing directions and random channel conditions, and adopt time…

信息论 · 计算机科学 2018-09-25 Chengjun Guo , Ying Cui , Zhi Liu

In this letter, we study the transmission of a multi-view video (MVV) to multiple users in an Orthogonal Frequency Division Multiple Access (OFDMA) system. To maximally improve transmission efficiency, we exploit both natural multicast…

信息论 · 计算机科学 2020-01-01 Wei Xu , Ying Cui , Zhi Liu , Haoran Li

In this paper, we would like to investigate fundamental impacts of multicast opportunities on efficient transmission of a 360 VR video to multiple users in the cases with and without transcoding at each user. We establish a novel…

信息论 · 计算机科学 2020-01-08 Kaixuan Long , Ying Cui , Chencheng Ye , Zhi Liu

In this paper, we would like to investigate optimal wireless streaming of a multi-quality tiled 360 virtual reality (VR) video from a server to multiple users. To this end, we propose to maximally exploit potential multicast opportunities…

信息论 · 计算机科学 2020-09-04 Kaixuan Long , Ying Cui , Chencheng Ye , Zhi Liu

In this paper, we investigate wireless streaming of multi-quality tiled 360 virtual reality (VR) videos from a multi-antenna server to multiple single-antenna users in a multi-carrier system. To capture the impact of field-of-view (FoV)…

信息论 · 计算机科学 2020-09-04 Lingzhi Zhao , Ying Cui , Chengjun Guo , Zhi Liu

This work considers the orthogonal frequency division multiple access (OFDMA) technology that enables multiple unmanned aerial vehicles (multi-UAV) communication systems to provide on-demand services. The main aim of this work is to derive…

信号处理 · 电气工程与系统科学 2023-04-26 Asad Mahmood , Thang X. Vu , Shree Krishna Sharma , Symeon Chatzinotas , Björn Ottersten

This paper investigates adaptive streaming of one or multiple tiled 360 videos from a multi-antenna base station (BS) to one or multiple single-antenna users, respectively, in a multi-carrier wireless system. We aim to maximize the video…

多媒体 · 计算机科学 2021-09-29 Lingzhi Zhao , Ying Cui , Zhi Liu , Yunfei Zhang , Sheng Yang

Massive multiple-input and multiple-output (MIMO) enables ultra-high throughput and low latency for tile-based adaptive virtual reality (VR) 360 video transmission in wireless network. In this paper, we consider a massive MIMO system where…

信息论 · 计算机科学 2021-06-16 Long Teng , Guangtao Zhai , Yongpeng Wu , Xiongkuo Min , Wenjun Zhang , Zhi Ding , Chengshang Xiao

A key challenge of 360$^\circ$ VR video streaming is ensuring high quality with limited network bandwidth. Currently, most studies focus on tile-based adaptive bitrate streaming to reduce bandwidth consumption, where resources in network…

多媒体 · 计算机科学 2024-04-24 Haopeng Wang , Haiwei Dong , Abdulmotaleb El Saddik

A novel transmission protocol is conceived for a multi-user, multi-relay, multiple-input--multiple-output orthogonal frequency-division multiple-access (MIMO-OFDMA) cellular network based on joint transmit and receive beamforming. More…

信息论 · 计算机科学 2016-09-20 Kent Tsz Kan Cheung , Shaoshi Yang , Lajos Hanzo

The recent rise of interest in Virtual Reality (VR) came with the availability of commodity commercial VR products, such as the Head Mounted Displays (HMD) created by Oculus and other vendors. One of the main applications of virtual reality…

多媒体 · 计算机科学 2017-05-16 Tarek El-Ganainy

Virtual reality (VR) video provides an immersive 360 viewing experience to a user wearing a head-mounted display: as the user rotates his head, correspondingly different fields-of-view (FoV) of the 360 video are rendered for observation.…

多媒体 · 计算机科学 2017-03-28 Gene Cheung , Zhi Liu , Zhiyou Ma , Jack Z. G. Tan

Immersive virtual reality (VR) applications require ultra-high data rate and low-latency for smooth operation. Hence in this paper, aiming to improve VR experience in multi-user VR wireless video streaming, a deep-learning aided scheme for…

信息论 · 计算机科学 2020-01-13 Cristina Perfecto , Mohammed S. Elbamby , Javier Del Ser , Mehdi Bennis

Virtual reality (VR) is making waves around the world recently. However, traditional video streaming is not suitable for VR video because of the huge size and view switch requirements of VR videos. Since the view of each user is limited, it…

网络与互联网体系结构 · 计算机科学 2019-06-28 Jie Feng , Yongpeng Wu , Guangtao Zhai , Ning Liu , Wenjun Zhang

We consider multi-antenna base stations using orthogonal frequency-division multiple access (OFDMA) and space division multiple access (SDMA) techniques to serve single antenna users, where some of those users have minimum rate requirements…

信息论 · 计算机科学 2011-10-07 Diego Perea-Vega , André Girard , Jean-François Frigon

Millimeter-wave(mmWave) technology has emerged as a promising enabler for unleashing the full potential of 360-degree virtual reality (VR). However, the explosive growth of VR services, coupled with the reliability issues of mmWave…

信息论 · 计算机科学 2023-05-16 Yuang Chen , Hancheng Lu , Langtian Qin , Chang Wu , Chang Wen Chen

In this paper, we study the resource allocation for an orthogonal frequency division multiple access (OFDMA) radio system employing a full-duplex base station for serving multiple half-duplex downlink and uplink users simultaneously. The…

信息论 · 计算机科学 2017-05-08 Yan Sun , Derrick Wing Kwan Ng , Robert Schober
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