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Related papers: Optimal Multicast of Tiled 360 VR Video in OFDMA S…

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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…

Information Theory · Computer Science 2018-09-25 Chengjun Guo , Ying Cui , Zhi Liu

In this paper, we study the optimal transmission of a multi-quality tiled 360 virtual reality (VR) video from a multi-antenna server (e.g., access point or base station) to multiple single-antenna users in a multiple-input multiple-output…

Multimedia · Computer Science 2021-04-14 Chengjun Guo , Ying Cui , Zhi Liu , Derrick Wing Kwan Ng

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…

Signal Processing · Electrical Eng. & Systems 2021-05-21 Chengjun Guo , Lingzhi Zhao , Ying Cui , Zhi Liu , Derrick Wing Kwan Ng

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…

Information Theory · Computer Science 2019-01-09 Kaixuan Long , Chencheng Ye , 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…

Information Theory · Computer Science 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…

Information Theory · Computer Science 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…

Information Theory · Computer Science 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)…

Information Theory · Computer Science 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…

Signal Processing · Electrical Eng. & Systems 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…

Multimedia · Computer Science 2021-09-29 Lingzhi Zhao , Ying Cui , Zhi Liu , Yunfei Zhang , Sheng Yang

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…

Multimedia · Computer Science 2017-05-16 Tarek El-Ganainy

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…

Information Theory · Computer Science 2020-01-13 Cristina Perfecto , Mohammed S. Elbamby , Javier Del Ser , Mehdi Bennis

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…

Information Theory · Computer Science 2017-05-08 Yan Sun , Derrick Wing Kwan Ng , Robert Schober

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…

Multimedia · Computer Science 2024-04-24 Haopeng Wang , Haiwei Dong , Abdulmotaleb El Saddik

Consider a multi-user Orthogonal Frequency Division Multiple Access (OFDMA) system where multiple users share multiple discrete subcarriers, but at most one user is allowed to transmit power on each subcarrier. To adapt fast traffic and…

Information Theory · Computer Science 2013-11-19 Ya-Feng Liu , Yu-Hong Dai

With the recent emergence of 3D-supported TVs, video service providers now face an opportunity to provide high resolution multi-view 3D videos over IP networks. One simple way to support efficient communications between a video server and…

Multimedia · Computer Science 2014-10-16 Ting-Yu Ho , Yi-Nung Yeh , De-Nian Yang

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.…

Multimedia · Computer Science 2017-03-28 Gene Cheung , Zhi Liu , Zhiyou Ma , Jack Z. G. Tan

This study considers an orthogonal frequency-division multiple-access (OFDMA)-based multi-user two-way relay network where multiple mobile stations (MSs) communicate with a common base station (BS) via multiple relay stations (RSs). We…

Information Theory · Computer Science 2012-01-04 Hao Zhang , Yuan Liu , Meixia Tao

Heterogeneous networks have emerged as a popular solution for accommodating the growing number of connected devices and increasing traffic demands in cellular networks. While offering broader coverage, higher capacity, and lower latency,…

While traditional multimedia applications such as games and videos are still popular, there has been a significant interest in the recent years towards new 3D media such as 3D immersion and Virtual Reality (VR) applications, especially 360…

Multimedia · Computer Science 2017-11-20 Mohammad Hosseini , Viswanathan Swaminathan
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