Mobile Video Multipath Concurrent Transmission Over Heterogeneous Wireless Networks Based on ACO

S. Zhang, Feng Chen, Wen-Kang Jia, H. Jiang
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Abstract

In the past few years, data traffic generated by video applications has become the dominant traffic on the internet due to the rapid development of wireless network and mobile terminal. However, using a single wireless network for video transmission with limited bandwidth is facing great challenges under the increasing video quality requirement. Fortunately, mobile terminal equipped with multiple network interfaces can transmit data over heterogeneous wireless networks concurrently to achieve higher bandwidth. In order to make effective use of heterogeneous access network resources, this paper develops a heuristic flow splitting algorithm based on ACO (Ant Colony Optimization) algorithm. Firstly, a system model with the objective that minimizes the multipath video transmission distortion is proposed under the end-to-end delay constraint. Secondly, to solve the problem based on heuristic ACO, the relevant models such as pheromone model and reliability model are presented, and a heuristic ACO algorithm is proposed. Finally, the proposed algorithm is tested and evaluated in the real-world platform. The evaluation results show that the proposed algorithm performs better than the referenced traditional algorithm in terms of PSNR and end-to-end frame delay.
基于蚁群算法的异构无线网络移动视频多径并发传输
在过去的几年里,由于无线网络和移动终端的快速发展,视频应用产生的数据流量已经成为互联网上的主导流量。然而,在视频质量要求日益提高的情况下,使用单一的无线网络在有限的带宽下进行视频传输面临着巨大的挑战。幸运的是,配备多个网络接口的移动终端可以在异构无线网络上并发传输数据,从而获得更高的带宽。为了有效利用异构接入网络资源,本文提出了一种基于蚁群优化算法的启发式流量分割算法。首先,在端到端时延约束下,提出了以最小化多径视频传输失真为目标的系统模型;其次,针对基于启发式蚁群算法的问题,提出了信息素模型和可靠性模型等相关模型,并提出了一种启发式蚁群算法。最后,在实际平台上对该算法进行了测试和评估。评估结果表明,该算法在PSNR和端到端帧延迟方面都优于参考的传统算法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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