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Results 1 - 10
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12,757
Rate-Distortion Optimized Receiver-Driven Streaming over Best-Effort Networks
"... This paper addresses the problem of streaming packetized media over a lossy packet network, in a rate-distortion optimized way, where the rate-distortion optimization is performed at the receiver. We show how the receiver should compute which packets, if any, to request from the sender, in order ..."
Abstract
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Cited by 29 (5 self)
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to meet a constraint on the transmission rate from the sender to the receiver while minimizing the average end-to-end distortion. Experimental results show that the receiver-driven system has performance within 1 dB of a sender-driven system, while reducing the computational burden at the sender.
Rate-Distortion Optimized Sender-Driven Streaming Over Best-Effort Networks
- IEEE Workshop on Multimedia Signal Processing
, 2001
"... This paper addresses the problem of streaming packetized media over a lossy packet network, in a rate-distortion optimized way. Out of all the packets that a sender could transmit at a given transmission opportunity, we show how the sender should compute which packets, if any, to transmit in order t ..."
Abstract
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Cited by 22 (5 self)
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to meet an average rate constraint while minimizing the average end-to-end distortion. Experimental results show that our system has steady-state gains of 3--7 dB or more over systems that are not rate-distortion optimized.
Distortion Exponent of MIMO Fading Channels
"... Abstract — In this paper, we consider transmission of a continuous amplitude source over a quasi-static MIMO Rayleigh fading channel. The performance metric is end-to-end distortion of the source caused both by the lossy compression and the channel errors. We are interested in the high SNR behavior ..."
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expressed in the distortion exponent, which is the exponential decay rate of the average end-to-end distortion as a function of SNR. Our goal is to maximize this distortion exponent by considering joint source and channel coding techniques. We provide digital strategies that utilize layered source coding
Rate-Distortion Optimized Streaming from the Edge of the Network
- in Proc. Workshop on Multimedia Signal Processing, St. Thomas, US Virgin Islands, Dec. 2002, IEEE
, 2002
"... This paper addresses the problem of streaming packetized media over a lossy packet network through an intermediate proxy server to a client, in a rate-distortion optimized way. The proxy, located at the junction of the backbone network and the last hop to the client, coordinates the communication be ..."
Abstract
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Cited by 20 (9 self)
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, in order to meet a constraint on the average transmission rate while minimizing the average end-to-end distortion. Performance gains of up to 1.5 dB and up to 4 dB are observed over rate-distortion optimized senderdriven systems for the case when the last hop is wireline and wireless, respectively.
Application Layer Error Correction Coding for Rate-Distortion Optimized Streaming to Wireless Clients
"... This paper addresses the problem of streaming packetized media over a lossy packet network to a wireless client, in a rate-distortion optimized way. We introduce an incremental redundancy error correction scheme that combats the effects of both packet loss and bit errors in an end-to-end fashion, ..."
Abstract
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Cited by 33 (11 self)
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an average transmission rate constraint while minimizing the average end-to-end distortion. Experimental results show that our system is robust and maintains quality of service over a wide range of channel conditions. Up to 8 dB performance gains are registered over systems that are not rate-distortion
Rate-Distortion Optimized Streaming from the Edge of the Network
, 2002
"... This paper addresses the problem of streaming packetized media over a lossy packet network through an intermediate proxy server to a client, in a rate-distortion optimized way. The proxy, located at the junction of the backbone network and the last hop to the client, coordinates the communication be ..."
Abstract
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, in order to meet a constraint on the average transmission rate on the last hop while minimizing the average end-to-end distortion. Performance gains of up to 2 dB and up to 4 dB are observed over rate-distortion optimized sender-driven systems for the case when the last hop is wireline and wireless
The rate-distortion function for source coding with side information at the decoder
- IEEE Trans. Inform. Theory
, 1976
"... Abstract-Let {(X,, Y,J}r = 1 be a sequence of independent drawings of a pair of dependent random variables X, Y. Let us say that X takes values in the finite set 6. It is desired to encode the sequence {X,} in blocks of length n into a binary stream*of rate R, which can in turn be decoded as a seque ..."
Abstract
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Cited by 1060 (1 self)
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sequence { 2k}, where zk E %, the reproduction alphabet. The average distorjion level is (l/n) cl = 1 E[D(X,,z&, where D(x, $ 2 0, x E I, 2 E J, is a pre-assigned distortion measure. The special assumption made here is that the decoder has access to the side information {Yk}. In this paper we determine
On Estimating End-to-End Network Path Properties
, 1999
"... The more information about current network conditions available to a transport protocol, the more efficiently it can use the network to transfer its data. In networks such as the Internet, the transport protocol must often form its own estimates of network properties based on measurements performed ..."
Abstract
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Cited by 245 (14 self)
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-trip time measurements are made or the settings of the parameters in the exponentially-weighted moving average estimators commonly used. For bandwidth estimation, we explore techniques previously sketched in the literature [Hoe96, AD98] and find that in practice they perform less well than anticipated. We
Illusion and well-being: A social psychological perspective on mental health.
- Psychological Bulletin,
, 1988
"... Many prominent theorists have argued that accurate perceptions of the self, the world, and the future are essential for mental health. Yet considerable research evidence suggests that overly positive selfevaluations, exaggerated perceptions of control or mastery, and unrealistic optimism are charac ..."
Abstract
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Cited by 988 (20 self)
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both the social world and cognitive-processing mechanisms impose niters on incoming information that distort it in a positive direction; negative information may be isolated and represented in as unthreatening a manner as possible. These positive illusions may be especially useful when an individual
Random Early Detection Gateways for Congestion Avoidance.
- IEEELACM Transactions on Networking,
, 1993
"... Abstract-This paper presents Random Early Detection (RED) gateways for congestion avoidance in packet-switched networks. The gateway detects incipient congestion by computing the average queue size. The gateway could notify connections of congestion either by dropping packets arriving at the gatewa ..."
Abstract
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Cited by 2716 (31 self)
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are designed to work with current gateways [15] could infer congestion from the estimated bottleneck service time or from changes in throughput or end-to-end delay, as well as from packet drops or other methods. Nevertheless, the view of an individual connection is limited by the time scales of the connection
Results 1 - 10
of
12,757
