A cross-layer design framework for robust IPTV services over IEEE 802.16 networks

She, James; Yu, Xiang; Ho, Pin–Han; Yang, En-Hui

doi:10.1109/jsac.2009.090214

Cited by 45 publications

(67 citation statements)

References 14 publications

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“…Since a video content is never with a Gaussian distribution, such approach can only serve as an analytical purpose but not practically work for a real-world deployment and operation. One of our previous works [6] have developed a generic system model without any assumption of source distribution and incorporated practical modulation schemes for the optimization. The total received bitstreams of each wireless multicast signal is considered as the performance metric, which will be maximized by optimal energy and modulation scheme for achieving the highest video quality.…”

Section: Previous Workmentioning

confidence: 99%

“…It is proved in [6], the amount of total received bitstreams, , of a frame or a GoF decodable by a receiver can serve as an objective and measurable approximation of the perceived video quality. Hence, it is used as the performance metric of the objective function in the optimization.…”

Section: Fig 3 Distortion Vs Bitstream Boundaries In a Frame Or A Gofmentioning

confidence: 99%

“…This results with the expense of a much reduced number and quality of video channels that can be jointly provisioned, which certainly leads to a poor economic scale. To tackle such multi-user channel diversity problem, efficient and robust cross-layer architectures for scalable wireless video broadcast/multicast are recently emerged [1][2][3][4][5][6][7][8][9][10][11], which will be described in the following section. Among these skillfully engineered cross-layer architectures, multi-resolution modulated broadcast/multicast radio signals are commonly generated through hierarchical/superposition coded modulation at the channel.…”

Section: Introductionmentioning

confidence: 99%

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Optimizing Energy and Modulation Selection in Multi-Resolution Modulation For Wireless Video Broadcast/Multicast

She

Shihada

2010

Access Networks

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Abstract. Emerging technologies in Broadband Wireless Access (BWA) networks and video coding have enabled high-quality wireless video broadcast/multicast services in metropolitan areas. Joint source-channel coded wireless transmission, especially using hierarchical/superposition coded modulation at the channel, is recognized as an effective and scalable approach to increase the system scalability while tackling the multiuser channel diversity problem. The power allocation and modulation selection problem, however, is subject to a high computational complexity due to the nonlinear formulation and huge solution space. This paper introduces a dynamic programming framework with conditioned parsing, which significantly reduces the search space. The optimized result is further verified with experiments using real video content. The proposed approach effectively serves as a generalized and practical optimization framework that can gauge and optimize a scalable wireless video broadcast/multicast based on multi-resolution modulation in any BWA network.

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Section: Previous Workmentioning

confidence: 99%

Section: Fig 3 Distortion Vs Bitstream Boundaries In a Frame Or A Gofmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Optimizing Energy and Modulation Selection in Multi-Resolution Modulation For Wireless Video Broadcast/Multicast

She

Shihada

2010

Access Networks

Self Cite

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“…In [24] and [26], the authors introduce and analyze a crosslayer framework for video multicast. Several video layers are generated and b i data blocks, each of K i bytes, are used for every layer i.…”

Section: Related Workmentioning

confidence: 99%

“…Then, a packet composed of one byte from every data block is generated using a modified multiple description coding scheme (MDC) in which superposition coding is used to encode each layer using a different MCS. In [26], an analysis is performed for the worst receiver in a Rayleigh channel. Neither [24] and [26] consider ARQ.…”

Section: Related Workmentioning

confidence: 99%

Cross-Layer Hybrid FEC/ARQ Reliable Multicast with Adaptive Modulation and Coding in Broadband Wireless Networks

2009

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Abstract-In this paper we define and address a new problem that arises when a base station in a broadband wireless network wishes to multicast information to a large group of nodes and to guarantee some level of reliability using Application layer FEC codes. Every data block to be multicast is translated into a sequence of K + n packets, from which every receiver must receive at least K in order to correctly decode the block. The new problem is to determine which PHY layer MCS (Modulation and Coding Scheme) the base station should use for each packet. We present several variants of this problem, which differ in the number of ARQ (Automatic Repeat reQuest) rounds during which the delivery of a data block must be completed. Most of these variants are shown to be NP-hard. However, we present optimal solutions for practical instances, where the number of MCSs is small, and efficient approximations and heuristics for the general case of each variant.

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Proxy‐assisted P2P and multicast transmission schemes for layered‐video streaming over wireless networks

Kao

Lee

2009

Int J Communication

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SUMMARYThis work describes the process of efficiently streaming a set of layered-videos from a remote server via proxy of the base station to multiple heterogeneous and asynchronous clients in wireless networks, such as the WiMAX network, which are devices that request different layers of the video according to their profiles. The process focuses on that the transmission cost savings for caching X layers of a video are not only from requests on X layers, but also from requests on layers that are lower than X layers. A set of proxy-assisted transmission schemes are proposed for layered-video streaming by integrating the proxy caching with reactive transmission schemes, peer-to-peer mesh networks and base station multicast capability. The optimal proxy prefix cache allocation is calculated for each transmission scheme to identify the cache layer and cache length of each video to minimize the aggregate transmission cost. Experimental results demonstrate that an adaptive proxy-assisted transmission scheme can lead to significant transmission cost savings.

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A cross-layer design framework for robust IPTV services over IEEE 802.16 networks

Cited by 45 publications

References 14 publications

Optimizing Energy and Modulation Selection in Multi-Resolution Modulation For Wireless Video Broadcast/Multicast

Optimizing Energy and Modulation Selection in Multi-Resolution Modulation For Wireless Video Broadcast/Multicast

Cross-Layer Hybrid FEC/ARQ Reliable Multicast with Adaptive Modulation and Coding in Broadband Wireless Networks

Proxy‐assisted P2P and multicast transmission schemes for layered‐video streaming over wireless networks

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