Reliable video multicast over Wi-Fi networks with coordinated multiple APs

Choi, Mun Kee; Sun, Wei; Koo, Jonghoe; Choi, Sunghyun; Shin, Kang G.

doi:10.1109/infocom.2014.6847965

Cited by 24 publications

(11 citation statements)

References 11 publications

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“…To solve this problem, it is necessary to enable WiFi multicast for screen mirroring. To date, many research efforts have focused on providing multicast media delivery system over WiFi network [11], [12], [16], [17], [28], [29], [30], [31].…”

Section: Related Workmentioning

confidence: 99%

“…According to their analysis, the systematic Raptor code is an effective approach to recover the lost packets of a WiFi multicast. Choi et al [31] presented a reliable video multicast scheme based on the Raptor codes and coordination between multiple APs. In the system, each AP transmits entirely or partially different Raptor encoded packets for reliable video multicast, and allocates the resource for Raptor code rate adaptation.…”

Section: Related Workmentioning

confidence: 99%

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Reliable and Energy-Efficient Hybrid Screen Mirroring Multicast System

Song

2018

IEEE Trans. on Mobile Comput.

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This paper presents a reliable and energy-efficient hybrid screen mirroring multicast system for sharing high-quality 5 real-time multimedia service with adjacent mobile devices over WiFi network. The proposed system employs overhearing-based multicast 6 transmission scheme with Raptor codes and NACK-based retransmission to overcome well-known WiFi multicast problems such as low 7 transmission rate and high packet loss rate. Furthermore, to save energy on mobile devices, the proposed system not only shapes the screen 8 mirroring traffic, but also determines the target sink device and Raptor encoding parameters such as the number of source symbols, symbol 9 size, and code rate while considering the energy consumption and processing delay of the Raptor encoding and decoding processes. The 10 proposed system is fully implemented in Linux-based single board computers and examined in real WiFi network. Compared to existing 11 systems, the proposed system can achieve good energy efficiency while providing a high-quality screen mirroring service. 12 Index Terms-Screen content, screen mirroring, WiFi, multicast, systematic raptor codes, overhearing Ç 13 1 INTRODUCTION 14 S CREEN mirroring technology enables a mobile device to 15 duplicate its screen content in real-time onto a large dis-16 play device, such as monitor, TV, and projector. This tech-17 nology allows the mobile user to overcome the constraints 18 of the small display unit in a mobile device. Furthermore, 19 screen mirroring can be applicable to various applications, 20 such as gallery sharing, presentations, mobile streaming, 21 and mobile gaming [1], [2], [3], [4], [5]. Because of its wide 22 range of applications, state-of-the-art mobile devices typi-23 cally offer screen mirroring functionality, and some com-24 mercial products are already available, e.g., AirPlay [6], 25 Chromecast [7], MirrorOp [8], Splashtop [9], and Miracast 26 [10]. In particular, Miracast, which is developed by the 27 WiFi Alliance, aims to act like a wireless High Definition 28 Multimedia Interface (HDMI) cable. In Miracast, the source 29 device (i.e., the mobile device) encodes the screen content 30 with H.264/AVC and transmits the compressed video data 31 to the sink device (i.e., typically WiFi-enabled receiver 32 connected to a TV or display device) using Real-Time 33 Streaming Protocol (RTSP) and WiFi-Direct. Recently, the 34 demand for screen content sharing among adjacent mobile 35 devices has been increasing for conferences, lectures, etc. 36 However, it is still challenging to provide screen mirroring 37 for multiple adjacent devices because existing screen mir-38 roring technologies support only one-to-one connection. To handle this problem, it is necessary to enable WiFi multicast for screen mirroring. Unfortunately, there are several well-known problems in the WiFi multicast. One of the most serious problems is unreliable packet delivery caused by the absence of acknowledgment and packet retransmission request. Another problem is that the sender selects a low transmiss...

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Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Reliable and Energy-Efficient Hybrid Screen Mirroring Multicast System

Song

2018

IEEE Trans. on Mobile Comput.

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“…In [7] the modeling, simulation and analysis of errors inherent in video streams over wireless broadband access networks have presented by presenting results of investigation of the effect of single bit error and bit packets error on the quality of H.264/AVC standard bursty video streams. A software hardware composite system that is developed [8] specifically for this purpose is employed in the investigation. Forward error correction (FEC) is used to achieve reliable video multicast over Wi-Fi networks with coordinated multiple access points (APs) to enhance video quality.…”

Section: Literature On Related Workmentioning

confidence: 99%

Identification and Analysis of the Quality of Transmitted Video

Sawant¹,

Kumbhar²

2015

IJERT

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Wireless sensor network is widely emerging technology from past recent years. It has gained lots of attention in recent years because of reduction in the complex wire infrastructure. Video streaming in wireless networks is a promising but difficult application. It is very difficult to enable continuous real time video streaming wirelessly due to various challenges in wireless networks. The main challenge is that the quality of wireless link fluctuates significantly because of the various interferences. In such a situation the number of information contained in each video frame must be preserved as much as possible and should be received at the other end that is at the user end. In the proposed system video is obtained from the camera then through the use of proper wireless protocol video will be sent wirelessly to the receiver .At the receiver, the video will be displayed and various parameters of video will be read like peak signal to noise ratio(PSNR),mean squared error(MSE), packet jitter and packet loss to identify the quality of video .

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“…In [11], the authors propose a video multicast scheme using multiple neighboring APs. In order to improve the reliability of video multicast, the authors use multiple coordinated APs to serve the users in a multicast session.…”

Section: Introductionmentioning

confidence: 99%

Reliable videos broadcast with network coding and coordinated multiple Access Points

Ostovari

2015

2015 IEEE 16th International Symposium on a World of Wireless, Mobile and Multimedia Networks (WoWMoM)

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As the popularity of wireless devices (e.g. smartphones and tablets) increases, watching videos over the Internet is becoming a main device application. Two important challenges in wireless communications are the unreliability of the wireless links and the interference among the wireless links. In order to exploit reliable video multicast, forward error correction and network coding can be used. In this paper, we propose a reliable video multicast method over wireless networks with multiple Access Points (AP). Using multiple APs, the multicast receivers can benefit from both spatial and time diversities, which results in more reliable transmissions. In order to utilize the shared wireless network efficiently, we propose a resource allocation algorithm. We show that a systematic concurrent transmission of the interfering AP nodes can enhance the total system performance and provide fairness to the client nodes. Therefore, in contrast with the previous resource sharing methods, which only permit the AP nodes that do not interfere with each other to transmit concurrently, we allow the interfering nodes to transmit concurrently, and we propose a two-phase resource allocation algorithm to further enhance the system utility. We show the effectiveness of our proposed method through extensive simulations.

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Reliable video multicast over Wi-Fi networks with coordinated multiple APs

Cited by 24 publications

References 11 publications

Reliable and Energy-Efficient Hybrid Screen Mirroring Multicast System

Reliable and Energy-Efficient Hybrid Screen Mirroring Multicast System

Identification and Analysis of the Quality of Transmitted Video

Reliable videos broadcast with network coding and coordinated multiple Access Points

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