Wireless transmission of image and video data in hostile mobile environments necessitates for a system which guarantees the quality of the data using effective error protection while at the same time ensures continues video streaming . Unequal Error Protection is a technique which makes use of the fact that not all data in a video stream is equally important . Based on the study first presented in , data can be divided into different categories based on its importance and assigned varying levels of error protection. This section focuses on the implementation of unequal error protection in the form of hierarchical modulation.
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