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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 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 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 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,…

Information Theory · Computer Science 2018-10-01 Chengjun Guo , Ying Cui , 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

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

Multi-view videos (MVVs) provide immersive viewing experience, at the cost of traffic load increase for wireless networks. In this paper, we would like to optimize MVV transmission in a multiuser wireless network by exploiting both natural…

Information Theory · Computer Science 2020-01-01 Wei Xu , 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

Multi-view videos (MVVs) provide immersive viewing experience, at the cost of heavy load to wireless networks. Except for further improving viewing experience, view synthesis can create multicast opportunities for efficient transmission of…

Information Theory · Computer Science 2018-08-16 Wei Xu , Yuzhuo Wei , Ying Cui , Zhi Liu

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

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…

Networking and Internet Architecture · Computer Science 2019-06-28 Jie Feng , Yongpeng Wu , Guangtao Zhai , Ning Liu , Wenjun Zhang

Efficient dissemination of videos is an important problem for mobile telecom carriers. In this paper, to facilitate massive video dissemination, we study joint caching and multicasting for multi-quality videos encoded using two video…

Information Theory · Computer Science 2019-02-05 Dongdong Jiang , Ying Cui

In this paper, the problem of joint radio and computation resource management over multi-channel is investigated for multi-user partial offloading mobile edge computing (MEC) system. The target is to minimize the weighted sum of energy…

Information Theory · Computer Science 2021-05-04 Bizheng Liang , Rongfei Fan , Han Hu

Immersive video, such as virtual reality (VR) and multi-view videos, is growing in popularity. Its wireless streaming is an instance of general multicast, extending conventional unicast and multicast, whose effective design is still open.…

Information Theory · Computer Science 2022-06-17 Lingzhi Zhao , Ying Cui , Sheng Yang , Shlomo Shamai

Nowadays, an enormous amount of videos are streamed every day to countless users, all using different devices and networks. These videos must be adapted in order to provide users with the most suitable video representation based on their…

Multimedia · Computer Science 2021-01-13 Johan De Praeter , Christopher Hollmann , Rickard Sjoberg , Glenn Van Wallendael , Peter Lambert

In this paper, we consider multi-quality multicast beamforming of a video stream from a multi-antenna base station (BS) to multiple single-antenna users receiving different qualities of the same video stream, via scalable video coding…

Information Theory · Computer Science 2017-07-18 Chengjun Guo , Ying Cui , Derrick Wing Kwan Ng , Zhi Liu

The Metaverse will provide numerous immersive applications for human users, by consolidating technologies like extended reality (XR), video streaming, and cellular networks. Optimizing wireless communications to enable the human-centric…

Social and Information Networks · Computer Science 2023-12-20 Jun Zhao , Liangxin Qian , Wenhan Yu

This paper considers downlink multicast transmit beamforming for secure layered transmission systems with wireless simultaneous information and power transfer. We study the power allocation algorithm design for minimizing the total transmit…

Information Theory · Computer Science 2016-11-17 Derrick Wing Kwan Ng , Robert Schober , Hussein Alnuweiri

Multi-connectivity has emerged as a key enabler for providing seamless connectivity in cellular mobile networks. However, its potential for improving the quality of multicast transmissions has remained unexplored. In this paper, we…

Networking and Internet Architecture · Computer Science 2022-02-11 Sadaf ul Zuhra , Prasanna Chaporkar , Abhay Karandikar , Pranav Jha
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