标题：Bandwidth Efficient Aggregation Mechanism through Concurrent Multipath Transfer Protocol for Quality-Guaranteed Real Time Video over Heterogeneous WSN
期刊名称：International Journal of Innovative Research in Computer and Communication Engineering
印刷版ISSN：2320-9798
电子版ISSN：2320-9801
出版年度：2017
卷号：5
期号：4
页码：7218
DOI：10.15680/IJIRCCE.2017.05040123
出版社：S&S Publications
摘要：Recent technological advancements in wireless infrastructures and handheld devices enable mobile usersto concurrently receive multimedia contents with different radio interfaces (e.g., cellular and Wi-Fi). However,multipath video transport over the resource-limited and error-prone wireless networks is challenged with key technicalissues: 1) conventional multipath protocols are throughput-oriented, and video data are scheduled in a content-agnosticfashion and 2) high-quality real-time video is bandwidth-intensive and delay-sensitive. To address these criticalproblems, this paper proposes a bandwidth-efficient multipath streaming (BEMA) protocol featured by the priorityawaredata scheduling and forward error correction-based reliable transmission. First, we present a mathematicalframework to formulate the delay-constrained distortion minimization problem for concurrent video transmission overmultiple wireless access networks. Second, we develop a joint Raptor coding and data distribution framework toachieve target video quality with minimum bandwidth consumption. Wireless communication networks are featuredwith heterogeneity where multiplewireless technologies exist together. In the intersection of coverage areas of thesedifferent technologies, receiver having multiple interfaces can access them concurrently so as to improve theperformance and this prompts bandwidth aggregation. A larger logical link can be created by aggregating lowbandwidth links. The same link can be used by a multimode terminal for applications that are demanding highbandwidth.Advantages of bandwidth aggregation and the challenges that are faced in attaining bandwidth aggregationare discussed in this paper. An overview of the architecture, different approaches and bandwidth aggregationtechniques employed in various layers of network are highlighted. In proposed work will work on Certificate less KeyManagement concept for maintain privacy and security to maintain the video aggregation stability.
关键词：Bandwidth aggregation; concurrent multi path transfer; heterogeneous wireless network
