&lt;title&gt;Asymptotically reliable transport of multimedia/graphics over wireless channels&lt;/title&gt;

Han, Richard; Messerschmitt, David G.

doi:10.1117/12.235864

Cited by 13 publications

(6 citation statements)

References 31 publications

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“…Some multimedia applications might, however, be able to use the possibly corrupt packet. With multiple‐delivery transport service multiple possibly corrupt but increasingly reliable versions of a packet are delivered to the receiving application 56. The application has the option of taking advantage of the earlier arriving corrupt packet to lower the perceived latency, but eventually replaces them with the asymptotically reliable version.In the concept of incremental redundancy (IR) 54, redundant data, for the purpose of error correction, is transmitted only when previously transmitted packets of information are received and acknowledged to be in error.…”

Section: Energy‐efficient Error Controlmentioning

confidence: 99%

Section: Energy‐efficient Error Controlmentioning

confidence: 99%

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Energy‐efficient wireless networking for multimedia applications

Havinga¹,

Smit²

2001

Wireless Communications

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Section: Energy‐efficient Error Controlmentioning

confidence: 99%

Section: Energy‐efficient Error Controlmentioning

confidence: 99%

Energy‐efficient wireless networking for multimedia applications

Havinga¹,

Smit²

2001

Wireless Communications

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“…Since the codebook is relatively small and will be used to decode many image frames, increasing the reliability of the codebook transmission (via forward error correction coding, retransmission, or a combination of both) has little impact on the overall bandwidth requirements but has a dramatic impact on the overall quality of the decompressed image. Data frames, which require more bandwidth and are more delay-sensitive, can be transmitted with little or no error correction: Corrupted image frames with bit-error rates of up to still provide the viewer with a good idea of the overall image composition [4].…”

Section: Class-based Communications Protocolsmentioning

confidence: 99%

“…A second mode, called protected mode, queues incoming bitmap data and displays it only if it the packet payload passes CRC. This is used in conjunction with a technique known as asymptotically reliable transmission [4], [5]. To maintain the responsiveness of the user interface, an initial, possibly corrupted, version of a bitmap is rendered as quickly as possible; in the background, the graphics server follows the initial transmission with low-priority 4 , protected-mode update packets that cyclically refresh the entire screen.…”

Section: User Interface I/o Peripherals 361 Graphics Subsystemmentioning

confidence: 99%

The InfoPad multimedia terminal: a portable device for wireless information access

Truman¹,

Pering

Doering

et al. 1998

IEEE Trans. Comput.

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The architecture of a device that is optimized for wireless information access and display of multimedia data is substantially different than configurations designed for portable stand-alone operation. The requirements to reduce the weight and energy consumption are the same, but the availability of the wireless link, which is needed for the information access, allows utilization of remote resources. A limiting case is when the only computation that is provided in the portable terminal supports the wireless links or the I/O interfaces, and it is this extreme position that is explored in the InfoPad terminal design. The architecture of the InfoPad terminal, therefore, can be viewed as essentially a switch which connects multimedia data sources in the supporting wired network to appropriate InfoPad output devices (e.g., video display), and connects InfoPad input devices to remote processing (e.g., speech recognizer server) in the backbone network.

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“…In Section 3, we propose end-to-end progressively reliable packet delivery [6], which initially permits delivery of a corrupt packet, and subsequently delivers increasingly reliable versions of that packet. In addition, several features are proposed to enhance the performance of progressively reliable packet delivery.…”

Section: Introductionmentioning

confidence: 99%

A progressively reliable transport protocol for interactive wireless multimedia

Han

Messerschmitt

1999

Multimedia Systems

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Abstract:We propose a progressively reliable transport protocol for delivery of delay-sensitive multimedia over Internet connections with wireless access links. The protocol, termed "Leaky" ARQ, initially permits corrupt packets to be leaked to the receiving application and then uses retransmissions to progressively refine the quality of subsequent packet versions. A Web server would employ Leaky ARQ to quickly deliver a possibly corrupt first version of an image over a noisy bandlimited wireless link for immediate display by a Web browser. Later, Leaky ARQ's retransmissions would enable the browser to eventually display a cleaner image. Forwarding and displaying corrupt error-tolerant image data: (1) lowers the perceptual delay compared to fully reliable packet delivery, and (2) can be shown to produce images with lower distortion than aggressively compressed images when the delay budget only permits weak forward error correction. Leaky ARQ supports delaying of re-transmissions so that initial packet transmissions can be expedited, and cancelling of retransmissions associated with "out-of-date" data. Leaky ARQ can be parameterized to partially retransmit audio and video. We propose to implement Leaky ARQ by modifying Type-II Hybrid/"code combining" ARQ.

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<title>Asymptotically reliable transport of multimedia/graphics over wireless channels</title>

Cited by 13 publications

References 31 publications

Energy‐efficient wireless networking for multimedia applications

Energy‐efficient wireless networking for multimedia applications

The InfoPad multimedia terminal: a portable device for wireless information access

A progressively reliable transport protocol for interactive wireless multimedia

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