Performance Evaluation of Forward Error Correction Mechanisms for Android Devices Based on Raptor Codes

摘要

We present a performance analysis concerning the application of Raptor codes as forward error correction mechanism at the application layer of Android devices. At first, a short overview on practical aspects of the implementation of Raptor coding is given. Subsequently, methods to increase the coding performance on ARM processors are presented and their impact is evaluated by representative experiments on different mobile devices. Finally, we assess the performance of our enhanced Raptor code implementation. Compared to a baseline Java implementation it achieves performance gains of up to 1200 %.