A Self-Adaptive QoS Guarantee Scheme for Multimedia Sensor Networks

A Self-Adaptive QoS Guarantee Scheme for Multimedia Sensor Networks
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多媒体传感器网络自适应QoS保证方案

DOI:
10.1155/2010/316342
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发表时间:
2010-01
影响因子:
2.3
通讯作者:
Liang Liu
Liang Liu
中科院分区:
计算机科学4区
文献类型:
--
作者:
Yan Sun;Huadong Ma;Liang Liu

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在多媒体传感器网络中,可能同时存在两种流:端到端流和事件到宿流。这给多媒体传输的QoS保证带来了新的挑战。本文首先提出了一种基于两层反馈的自适应QoS保证方案。在传输层,我们将网络划分为10种典型状态,并设计了一种传输协议,使网络状态向最优状态转移。设计了一种媒体流的收益结构来描述QoS与应用层多媒体捕获方式之间的关系,从而根据传输层计算的多媒体包生成率来评价最优的多媒体捕获方案。使用NS2进行了一系列的仿真实验,以证明我们提出的方案的有效性。
In multimedia sensor networks, there may exist simultaneously two streams: end-to-end stream and event-to-sink stream. It brings a new set of challenges for QoS guarantees in multimedia transmission. In this paper, we first present a self-adaptive QoS guarantee scheme based on two-layer feedback. In transport layer, we partition network into 10 typical states and design a transport protocol, which makes the state transition to the optimal one. Moreover, we design a revenue structure of media stream to describe the relation between QoS and multimedia capturing approaches in the application layer, thus evaluating the optimal scheme of capturing multimedia according to multimedia packet generation ratio calculated by transport layer. A series of simulation experiments using NS2 are performed to demonstrate the effectiveness of our proposed scheme.
DOI: 10.1145/984622.984677
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