Wireless Smooth Data Streaming on Application Layer

With the rapid increase of multimedia technology [1], [2], the support of network traffic has become an important issue. Thus many protocols have been developed to address this issue in different network layers such as Real Time Streaming Protocol (RTSP) [3], Smooth Streaming [4] in application layer, and Real time Protocol (RTP) in transport layer. The common characteristic of these protocols is the requirement of data smoothing to support modern application like intelligent home and vehicular network. In addition, smart phone and wireless sensor network(WSN) [5] do not support all protocols, indeed, they may only support Transmission Control Protocol(TCP) or User Data gram Protocol(UDP). This implies that the network bandwidth will nor be good enough to play high quality multimedia streaming and support complicated network structure. In this paper, we present a smooth data streaming approach on application layer to reduce packet retransmission and improve performance. The proposed approach can provide smooth data streaming and reduce response time with the aid of data caching or data compression without increase the complexity of network protocol. In order to decrease the development complexity arising from UDP, instead, we implement the proposed approach based on TCP. We also analyze the impact of this work and discuss challenges in TCP in this paper. The result shows that the proposed approach can stabilize smooth data transmission and improve performance by 20% to 35% for benchmarks.