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  • Cross-Layer Wireless Bit Rate Adaptation

    2009-6-30 · Cross-Layer Wireless Bit Rate Adaptation Mythili Vutukuru and Hari Balakrishnan MIT CSAIL {mythili,hari}@csail.mit.edu Kyle Jamieson University College London [email protected] ABSTRACT This paper presents SoftRate, a wireless bit rate adaptation proto-col that is responsive to rapidly varying channel conditions. Unlike

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  • Video data wireless transmission method based

    2019-3-7 · In this paper, based on the idea of cross-layer design, key research for wireless video transmission channel available bandwidth estimation, bit rate control, packet encapsulation strategy, the key techniques such as joint design between each protocol layer parameters, using comprehensive methods to adapt to the network dynamics, the change of each layer to the layer …

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  • Cross-Layer Link Adaptation for Wireless Video

    2010-11-4 · Link adaptation refers to techniques for dynamically and adaptively choosing modulation schemes according to channel conditions. The modulation schemes that yield high PHY rates (e.g. 54Mbps) are fragile and susceptible to corruption from interference. On the other hand, more resilient modulation schemes can be employed at the expense …

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  • Cross Layer Adaptation with QoS Guarantees for

    In this paper, a cross-layer adaptation scheme is proposed for quality of service (QoS) provision in the scalable video streaming of high definition (HD) content. The cross-layer parameters, which...

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  • (PDF) Cross-Layer Adaptation of MPEG4 Video

    2005-12-1 · The proposed cross-layer adaptation jointly exploits variable-bitrate (VBR) multi-carrier code-division multiplexing (MC-CDM) and MPEG4 Fine-Grain-Scalability (FGS) in order to provide unequal ...

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  • (PDF) Dynamic Cross-Layer Adaptation of

    We show that it allows fast, near optimal rate adaptation for fixed transmission paths, as well as cross-layer optimized routing and video rate adaptation …

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  • Link adaptation and cross-layer signaling for

    We show that, with the cross-layer signaling between the MAC-layer and the video coder, a 4 dB increase of visual quality is achievable.

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  • A quality of experience-aware cross-layer

    2016-6-19 · Sending a higher number of video packets by the cross-layer architecture compared to adaptive architecture as shown in Fig. 8 and a lower packet drop ratio as shown in Fig. 7 over the same simulation time (500 s), indicates that the video content was sent with a higher bitrate, thus a better MOS was provided by the cross-layer …

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  • ACS Publications: Chemistry journals, books, and ...

    由于此网站的设置,我们无法提供该页面的具体描述。

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  • Coordinated Handover Signaling and Cross-Layer

    2019-6-28 · The used mobility protocol manage multiple physical paths over heterogeneous networks. This architecture is mainly composed of three parts, (i) Collecting network conditions, (ii) signaling between entities, and (iii) adaptive algorithm based on network conditions. The cross-layer scheme provides the sender with …

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  • Cross-Layer Link Adaptation for Wireless Video

    2010-11-4 · Cross-Layer Link Adaptation for Wireless Video Michael Loiacono ∗, Jeffrey Johnson , Justinian Rosca and Wade Trappe† ∗Siemens Corporate Research, Princeton, NJ 08540, USA {michael.loiacono, johnson.jeffrey, justinian.rosca}@siemens.com†Wireless Information Network Laboratory (WINLAB), Rutgers University, USA [email protected] Abstract—Current link adaptation …

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  • QoE-Driven Cross-Layer Optimization for

    2014-9-12 · QoE-Driven Cross-Layer Optimization for Wireless Dynamic Adaptive Streaming of Scalable Videos Over HTTP ... -friendly scheduling and resource allocation algorithm by integrating the DASH-based media delivery and the radio-level adaptation via a cross-layer approach. ... a DASH proxy-based bitrate stabilization algorithm is …

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  • A cross-layer quality-of-service mapping architecture

    2017-7-9 · in this cross-layer QoS mapping architecture. Since the main challenge here is the time-varying and nonstationary behavior of the wireless link, we will describe its modeling first. Then, we will discuss the link layer packet transmission module, and cross-layer QoS mapping and adaptation module. Fig. 1.

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  • Cross Layer Adaptation with QoS Guarantees for

    Abstract—In this paper, a cross-layer adaptation scheme is proposed for quality of service (QoS) provision in the scalable video streaming of high definition (HD) content. The cross-layer parameters, which contain the video rate, payload length of a packet, the mode of modulation and coding scheme (MCS), can be dynamically adapted to minimize ...

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  • Cross-layer design optimizations in wireless

    2004-5-1 · Cross-layer feedback optimizations may be implemented at the intermediate nodes [9], [10] or mobile hosts (MH). We focus on cross-layer feedback in the MH since we believe that it would be easier to implement changes on the end-devices than in the network. We believe that improving user satisfaction is the ultimate goal of improving …

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  • Block-based Bitrate Control for Wireless Networks

    2011-6-29 · In this poster, we present BlockRate, a wireless bitrate adaptation algorithm designed for blocks, or large con-tiguous units of transmitted data, as opposed to small packets. In contrast to state-of-the-art algorithms that can either have the amortization benefits of blocks or high responsiveness to underlying channel conditions of

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  • Pennsylvania State University

    cross-layer adaptation that is based on open programmable networks and demonstrate the potential of the CLA paradigm with recent research results on cross-layer optimized wireless video streaming. 1. Introduction In a mobile and wireless communication environment it is still very challenging to provide reliable high-quality services due to

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  • Cross-layer optimization for many-to-one

    2018-3-1 · This paper develops a cross-layer optimization solution for video streaming from multiple sources to a central proxy station over a wireless network. The proposed solution manages the application rates and transmission opportunities of various video sources based on the dynamic network conditions in such a way that minimizes the …

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  • How can I take high quality cross-sectional SEM

    2020-6-25 · 其中 Cross Layer 设计的巧妙之处全部体现在上面的计算公式中,我们先看一些明显的细节:1) 每层的神经元个数都相同,都等于输入 的维度 ,也即每层的输入输出维度都是相等的;2) 受残差网络(Residual Network)结构启发,每层的函数 拟合的是 的残差,残差网络有很多优点,其中一点是处理梯度消失 ...

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  • Cross-layer optimized rate adaptation for video

    Cross-layer optimized rate adaptation for video over wireless multi-rate networks. Kim, Jong Ok; Tode, Hideki. In: IEICE Transactions on Communications, Vol. E94-B, No. 7, 07.2011, p. 2051-2061. Research output: Contribution to journal › Article › peer-review

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  • QoE-Driven Cross-Layer Optimization for

    2014-9-12 · QoE-Driven Cross-Layer Optimization for Wireless Dynamic Adaptive Streaming of Scalable Videos Over HTTP ... -friendly scheduling and resource allocation algorithm by integrating the DASH-based media delivery and the radio-level adaptation via a cross-layer approach. ... a DASH proxy-based bitrate stabilization algorithm is …

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  • A cross-layer quality-of-service mapping architecture

    2017-7-9 · in this cross-layer QoS mapping architecture. Since the main challenge here is the time-varying and nonstationary behavior of the wireless link, we will describe its modeling first. Then, we will discuss the link layer packet transmission module, and cross-layer QoS mapping and adaptation module. Fig. 1.

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  • Adaptive cross-layer protection strategies for robust ...

    2014-1-14 · throughput, delay, etc. Consequently, cross-layer protec-tion strategies would enable the adaptation at the physical layer to be done based on the application requirements. For instance, since video can tolerate a certain amount of losses, the best possible video quality given a particular channel condition can be obtained by …

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  • Cross Layer Adaptation with QoS Guarantees for

    Abstract—In this paper, a cross-layer adaptation scheme is proposed for quality of service (QoS) provision in the scalable video streaming of high definition (HD) content. The cross-layer parameters, which contain the video rate, payload length of a packet, the mode of modulation and coding scheme (MCS), can be dynamically adapted to minimize ...

    Get Price
  • MPEG-21 Integrated Cross Layer QoS Adaptation

    2013-2-14 · The cross layer adaptation facilitate protocols use the state information elegant throughout the stack to adapt their actions accordingly [8] [9] and to achieve substantial performance gain. Cross layer QoS adaptation is a new area of research, offers new challenges, and needs to be explored in depth.

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  • Anticipatory Wireless Bitrate Control for Blocks

    2011-12-6 · Bitrate control is a critical component of a wireless protocol stack. Wireless bitrate control seeks to con-trol the effective rate of transmission by adapting the amount of redundancy in transmitted data to the un-derlying channel quality so as to optimize the received goodput. Although model-based bit rate adaptation

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  • Dipak-Ghosal-UCDavis - Wireless Networks

    2020-2-15 · These depend on the dynamic network conditions including congestion in network and the time varying quality of the wireless channel. This research focuses on video streaming over LTE. One of the key problems in video streaming is the client-side bitrate adaptation (generically referred to as Adaptive Bit Rate (ABR)).

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  • An opportunistic cross-layer architecture for

    N2 - We propose an opportunistic cross-layer architecture for adaptive support of Voice over IP in multi-hop wireless LANs. As opposed to providing high call quality, we target emergencies where it is important to communicate, even if at low quality, no matter the harshness of the network conditions.

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  • IEEE TRANSACTIONS ON MULTIMEDIA, VOL. 9, NO.

    2014-1-14 · review of application-layer research in wireless multimedia streaming is provided in [1]. Cross-layer design for wireless multimedia transmission has also been investigated (e.g., [5], [11], and [15]) and the results indicate that a significant gain in performance can be obtained. However, existing cross-layer so-

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  • Adaptive cross-layer protection strategies for robust ...

    2014-1-14 · throughput, delay, etc. Consequently, cross-layer protec-tion strategies would enable the adaptation at the physical layer to be done based on the application requirements. For instance, since video can tolerate a certain amount of losses, the best possible video quality given a particular channel condition can be obtained by …

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  • Frequency-Aware Rate Adaptation and MAC Protocols

    2009-8-15 · tion, Cross-layer 1 INTRODUCTION Wireless technologies are pushing toward wider frequency bands ... high-speed ADC and DAC hardware [38, 31].1 In particular, today, ... Existing bitrate adaptation and MAC protocols however are frequency-oblivious. They assign the same bitrate to all frequencies

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  • Anticipatory Wireless Bitrate Control for Blocks

    2005-4-3 · Bitrate control is a critical component of a wireless protocol stack. Wireless bitrate control seeks to con-trol the effective rate of transmission by adapting the amount of redundancy in transmitted data to the un-derlying channel quality so as to optimize the received goodput. Although model-based bit rate adaptation

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  • BLINK: a high throughput link layer for

    2012-6-25 · Cross-layer wireless bit rate adaptation. In ACM SIGCOMM CCR, 2009. Google Scholar Digital Library; S. Wong, H. Yang, S. Lu, and V. Bharghavan. Robust rate adaptation for 802.11 wireless networks. In ACM Mobicom, 2006. Google Scholar Digital Library; D. Zanetti et al. Physical-layer identification of uhf rfid tags. In ACM MobiCom, 2010.

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  • A bitrate adaptation scheme for in-home video

    2006-8-3 · High quality video streaming puts high demands on network and processor resources. ... of basic quality and several Enhancement Layers (EL) containing increasingly more video data to enhance the quality of the base layer and thus resulting in video of increasingly higher quality [18]. ... A bitrate adaptation scheme for in-home …

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  • LiBRA: learning-based link adaptation leveraging

    2020-11-23 · Bit-rate Selection in Wireless Networks. Master's thesis. MASSACHUSETTS INSTITUTE OF TECHNOLOGY. Google Scholar; Joseph Camp and Edward Knightly. 2010. Modulation Rate Adaptation in Urban and Vehicular Environments: Cross-Layer Implementation and Experimental Evaluation. IEEE/ACM Transactions on Networking …

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  • Adaptive low-bitrate streaming over IEEE

    S. Deshpande, 'Dynamic Adaptation of MAC Layer Re-transmissions Based on Deadline Aware Client Feedback,' IEEE WirelessCom, June 2005 Google Scholar; P. van Beek, S.Deshpande, H. Pan, and I. Sezan, 'Adaptive streaming of high-quality video over wireless LANs,' Proc. SPIE, Vol. 5308, Visual Communications and Image Proc. 2004 Google …

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  • Towards Forward-looking Online Bitrate

    To achieve a high quality of experience, bitrate adaptation algorithm is required to strike a balance between response agility and video quality stability. Existing online algorithms select bitrates according to instantaneous throughput and buffer occupancy, achieving an agile reaction to changes but inducing video quality fluctuations due to ...

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  • Large-area synthesis of high-quality and uniform

    Graphene has been attracting great interest because of its distinctive band structure and physical properties. Today, graphene is limited to small sizes because it is produced mostly by exfoliating graphite. We grew large-area graphene films of the order of centimeters on copper substrates by chemic …

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  • GitHub - DiligentGraphics/DiligentEngine: A

    Diligent Engine . A Modern Cross-Platform Low-Level 3D Graphics Library and Rendering Framework. Diligent Engine is a lightweight cross-platform graphics API abstraction library and rendering framework. It is designed to take full advantage of Direct3D12, Vulkan and Metal, while supporting older platforms via Direct3D11, OpenGL and …

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  • Anticipatory Wireless Bitrate Control for Blocks

    2005-4-3 · Bitrate control is a critical component of a wireless protocol stack. Wireless bitrate control seeks to con-trol the effective rate of transmission by adapting the amount of redundancy in transmitted data to the un-derlying channel quality so as to optimize the received goodput. Although model-based bit rate adaptation

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  • A cross-layer framework for multi-layer-video

    2009-10-9 · Abstract: We propose a cross-layer framework for efficient multi-layer-video multicast with rate adaptation and quality-of-service (QoS) requirements in multirate wireless networks. We employ time division multiple access at the physical layer to transmit different video layers' data. The multicast sender then dynamically regulates …

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  • Cross-layer Wireless Resource Allocation

    2009-11-24 · Cross-layer Wireless Resource Allocation: Fundamental Performance Limits Randall A. Berry∗and Edmund M. Yeh‡ 1 INTRODUCTION A fundamental problem in networking is the allocation of limited resources among the users of the network.

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  • BLINK: a high throughput link layer for

    2012-6-25 · Cross-layer wireless bit rate adaptation. In ACM SIGCOMM CCR, 2009. Google Scholar Digital Library; S. Wong, H. Yang, S. Lu, and V. Bharghavan. Robust rate adaptation for 802.11 wireless networks. In ACM Mobicom, 2006. Google Scholar Digital Library; D. Zanetti et al. Physical-layer identification of uhf rfid tags. In ACM MobiCom, 2010.

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  • Towards secure and network state aware bitrate

    2020-7-13 · In IoT systems, the wireless channels are prone to interference and malicious attacks, which significantly impacts Quality-of-Experience (QoE) for video streaming applications. In this paper, we propose a secure and network-state-aware solution, SASA, to address these challenges. We first study the buffer-level constraint when increasing bitrate.

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  • Cache-Friendly Streaming Bitrate Adaptation by

    2016-8-30 · tation logic to maximize quality of experience, i.e., high and stable playback bitrate without disruption, and to ensure fairness in networks where congestion feedback can be made available to the streaming adaptation logic such as in DASH over CCN. 2.3 A Motivating Example Using mean delivery throughput of previous segments as

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  • Towards Forward-looking Online Bitrate

    To achieve a high quality of experience, bitrate adaptation algorithm is required to strike a balance between response agility and video quality stability. Existing online algorithms select bitrates according to instantaneous throughput and buffer occupancy, achieving an agile reaction to changes but inducing video quality fluctuations due to ...

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  • Bit-rate Selection in Wireless Networks

    2011-11-29 · throughput on wireless links. Many wireless protocols, including 802.11, have multiple bit-rates from which transmitters can choose. Higher bit-rates allow high quality links to transmit more data, but provide low throughput on lossy links. Lower bit-rates, in general, have a lower loss probability on low quality links.

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  • piStream: Physical Layer Informed Adaptive Video

    2015-9-7 · popularity due to LTE’s high capacity. Quality of adap-tive streaming depends highly on the accuracy of client’s estimation of end-to-end network bandwidth, which is chal-lenging due to LTE link dynamics. In this paper, we present piStream, that allows a client to e ciently monitor the LTE basestation’s PHY-layer resource allocation, and ...

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  • A cross-layer framework for multi-layer-video

    2009-10-9 · Abstract: We propose a cross-layer framework for efficient multi-layer-video multicast with rate adaptation and quality-of-service (QoS) requirements in multirate wireless networks. We employ time division multiple access at the physical layer to transmit different video layers' data. The multicast sender then dynamically regulates …

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  • A Cross-Layer Design for Scalable Mobile Video

    2011-8-22 · The wireless medium suffers high bit er-ror andpacket loss rates due toboth interference andchannel ... bitrate adaptation, or video code rate ... degradation in the video quality. We note that despite its cross-layer design, SoftCast is relatively easy to incorporate within the existing network

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  • Proposal for a Cross-Layer Coordination Framework

    2007-10-25 · Cross-Layer Design, Signaling Framework, Cross-Layer Adaptation, Video over Wireless. 1. INTRODUCTION The rapid growth of wireless technologies has highlighted some shortcomings in the current protocol stack. This stack served well for the wire-line environment but has several limitations when used as is in the wireless …

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  • Cross-layer Wireless Resource Allocation

    2009-11-24 · Cross-layer Wireless Resource Allocation: Fundamental Performance Limits Randall A. Berry∗and Edmund M. Yeh‡ 1 INTRODUCTION A fundamental problem in networking is the allocation of limited resources among the users of the network.

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  • An Analysis of Constant Bitrate and Constant

    Abstract: In wireless networks, transmission of constant-quality, high bitrate video is a challenging task due to channel capacity and buffer limitations. Content adaptive rate control, is used as a solution to this problem. Instead of transmitting all of the video content at low quality, the most important content can be transmitted at high quality while still preserving an acceptable quality …

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  • CS2P: Improving Video Bitrate Selection and

    2016-6-29 · Bitrate adaptation is critical to ensure good quality-of-experience (QoE) for Internet video. Several efforts have argued that accurate throughput prediction can dramatically improve the efficiency of (1) initial bitrate selection to lower startup delay and offer high initial resolution and (2) mid-stream bitrate adaptation for high QoE.

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  • QoS in Wireless Data Networks - Washington

    according to the common areas where cross-layer designs are applied. Section 5 presents some recommendations on how the quality of cross-layer designs can be measured. Section 6 concludes the paper. 2. BASICS OF CROSS-LAYER DESIGN 2.1 Definition It is only fair to give a simple definition of the topic that is discussed throughout this paper.

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  • Cross-layer Designs: a Survey - Pennsylvania State

    2015-9-7 · popularity due to LTE’s high capacity. Quality of adap-tive streaming depends highly on the accuracy of client’s estimation of end-to-end network bandwidth, which is chal-lenging due to LTE link dynamics. In this paper, we present piStream, that allows a client to e ciently monitor the LTE basestation’s PHY-layer resource allocation, and ...

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