Real-Time Unequal Error Protection for Wireless Imaging

Document type: Conference Papers
Peer reviewed: Yes
Author(s): Muhammad Imran Iqbal, Hans-Jürgen Zepernick
Title: Real-Time Unequal Error Protection for Wireless Imaging
Conference name: IEEE GLOBECOM 2011 - MMCOM Workshop
Year: 2011
Publisher: IEEE
City: Houston
ISI number: 000304097200142
Other identifiers: Link to the final program of the Workshop: http://www.fuseco-workshop.org/mmcom2011/en/node/25
Organization: Blekinge Institute of Technology
Department: School of Computing (Sektionen för datavetenskap och kommunikation)
School of Computing S-371 79 Karlskrona
+46 455 38 50 00
http://www.bth.se/com
Authors e-mail: muhammad.imran.iqbal@bth.se
Language: English
Abstract: In this paper, we propose a new unequal error protection (UEP) scheme for wireless imaging. Our technique is based on approximating the optimal parity distribution using offline and online processing. For a given parity budget and signal to-noise ratio (SNR), the offline processing is responsible for obtaining the optimal parity distribution and an approximation of it using polynomial curve fitting. Subsequently, in the online processing, the obtained polynomial parameters are used to regenerate the parity distribution curve. Eventually, channel codes are assigned to the packets of the codestream based on the regenerated parity distribution curve. The complexity of the proposed technique is very low which makes it suitable for real-time wireless imaging, especially for mobile devices that have low processing power and operate with very low memory. Despite having very low complexity, the proposed UEP technique gives still close to optimal performance.
Subject: Signal processing\Image and Video Processing
Telecommunications\General
Keywords: Wireless imaging, curve fitting, real time UEP, SSIM, perceptual quality.
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