Results 21 to 30 of about 1,375 (127)

The Latest MPEG Standards and Industrial Requirements for Media Streaming

open access: yesJournal of Algorithms & Computational Technology, 2008
This paper presents an overview of image compression covering JPEG, the MPEG Standards, H.262, H.263 and H.264, VQ, Wavelet and Fractal Transforms. Error resilience in terms of an unequal error protection (UEP) scheme is also covered.
Maaruf Ali
doaj   +1 more source

Research on Stepwise UEP-LT Code for Ultraviolet Communication in Helicopter Emergency Landing Guiding [PDF]

open access: yesJisuanji gongcheng, 2016
Ultraviolet communication data determines the security of helicopter emergency landing.In order to provide greater protection for More Important Bits(MIB),a novel approach to provide Unequal Error Protection(UEP) based on the block duplication method and
ZHAO Taifei,LIU Xue,LIU Yijie
doaj   +1 more source

Unequal Error Protection in BICM with QAM Constellations: Interleaver and Code Design [PDF]

open access: yes, 2009
In this paper we present a general methodology for the interleaver and code design for QAM-based BICM transmissions. We develop analytical bounds on the bit error rate and we use them to predict the performance of BICM when unequal error protection (UEP)
Agrell, Erik   +3 more
core   +2 more sources

Block Recovery Rate-Based Unequal Error Protection for Three-Screen TV

open access: yesApplied Sciences, 2017
This paper describes a three-screen television system using a block recovery rate (BRR)-based unequal error protection (UEP). The proposed in-home wireless network uses scalable video coding (SVC) and UEP with forward error correction (FEC) for ...
Hojin Ha, Eun-Seok Ryu
doaj   +1 more source

Unequal Error Protection Querying Policies for the Noisy 20 Questions Problem

open access: yes, 2017
In this paper, we propose an open-loop unequal-error-protection querying policy based on superposition coding for the noisy 20 questions problem. In this problem, a player wishes to successively refine an estimate of the value of a continuous random ...
Chung, Hye Won   +3 more
core   +1 more source

Novel UEP LT Coding Scheme with Feedback Based on Different Degree Distributions

open access: yesITM Web of Conferences, 2016
Traditional unequal error protection (UEP) schemes have some limitations and problems, such as the poor UEP performance of high priority data and the seriously sacrifice of low priority data in decoding property.
Li Ya-Fang, Zhang Wei-Dang
doaj   +1 more source

Hierarchical Colour-Shift-Keying Aided Layered Video Streaming for the Visible Light Downlink

open access: yesIEEE Access, 2016
Colour-shift keying (CSK) constitutes an important modulation scheme conceived for the visible light communications (VLC). The signal constellation of CSK relies on three different-color light sources invoked for information transmission.
Chuan Zhu   +6 more
doaj   +1 more source

Block QPSK modulation codes with two levels of error protection [PDF]

open access: yes, 1994
A class of block QPSK modulation codes for unequal error protection (UEP) is presented. These codes are particularly suitable either for broadcast channels or for communication systems where parts of the information messages are more important than ...
Lin, Shu, Morelos-Zaragoza, Robert H
core   +1 more source

Optimized Network-coded Scalable Video Multicasting over eMBMS Networks [PDF]

open access: yes, 2015
Delivery of multicast video services over fourth generation (4G) networks such as 3GPP Long Term Evolution-Advanced (LTE-A) is gaining momentum. In this paper, we address the issue of efficiently multicasting layered video services by defining a novel ...
Chatzigeorgiou, Ioannis   +3 more
core   +2 more sources

Multilevel Coded Modulation for Unequal Error Protection and Multistage Decoding—Part II: Asymmetric Constellations [PDF]

open access: yes, 1999
In this paper, multilevel coded asymmetric modulation with multistage decoding and unequal error protection (UEP) is discussed. These results further emphasize the fact that unconventional signal set partitionings are more promising than traditional ...
Fossorier, Marc P. C.   +4 more
core   +7 more sources

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