动态网络更新及流量分配多径路由协议

发布时间：2018-06-23 17:42

本文选题：多径路由 + 动态网络更新及流量分配　；参考：《西安电子科技大学》2014年硕士论文

【摘要】：近年来,随着硬件技术的发展,传感器节点成本的大幅下降以及人们对快捷、多样信息获取的渴求,无线多媒体传感器网络得到了巨大的发展,应用范围也愈加广泛。但是,由于能量和带宽受限,及网络状态的不断变化,路由协议的设计成为其实现数据有效传输的关键。一般而言,无线多媒体传感器网络路由协议的设计必须满足能量效率高,控制开销小,适应性较强的要求。在研究若干原有协议优势和劣势的基础上,本文设计了一个动态网络更新及流量分配多径路由协议。协议采用多条路径同时发现的方法,以及合理的最优下一跳节点选择机制保证了协议的节能性;采用两阶段的网络状态更新策略,以及路由应答机制确保了协议的可靠性;与此同时,协议的动态路径管理和流量分配机制,降低了数据传输时延。NS2仿真分析表明,对于数据分组成功投递率,平均时延,平均能耗三个评价指标,所研究的协议与其他协议相比具有更加良好的表现。在此基础上,对于无线多媒体传感器网络中传输混合业务,一般为实时数据分组和非实时数据分组同时传输的情况,采用双向队列储存两类数据分组;并设计了基于路径流量平衡的双重业务调度算法,保证实时数据相比于非实时数据拥有更高的优先级,更低的丢包率和更小的传输时延。NS2仿真验证,采取以上两个手段之后,实时数据分组相比于非实时数据分组具有更低的传输时延和更高的可靠性。
[Abstract]:In recent years, with the development of hardware technology, the cost of sensor nodes and the people's desire for rapid and diverse information access, wireless multimedia sensor networks have been a huge development, and the scope of application has become more and more extensive. However, due to the limitation of energy and bandwidth, and the continuous change of network state, the design of routing protocol becomes the key to realize the effective transmission of data. In general, routing protocols for wireless multimedia sensor networks must meet the requirements of high energy efficiency, low control overhead and strong adaptability. On the basis of studying the advantages and disadvantages of some existing protocols, a dynamic network update and traffic allocation multipath routing protocol is designed in this paper. The protocol adopts the method of simultaneous discovery of multiple paths and the reasonable next hop node selection mechanism to ensure the energy saving of the protocol, and adopts the two-stage network state update strategy and the routing response mechanism to ensure the reliability of the protocol. At the same time, the dynamic path management and traffic allocation mechanism of the protocol reduce the data transmission delay. NS2 simulation results show that, for the data packet delivery rate, average delay, average energy consumption three evaluation indicators, The protocol studied has better performance than other protocols. On this basis, for wireless multimedia sensor networks, the transmission of mixed services, generally for real-time data packets and non-real-time data packets at the same time, the use of two-way queue storage of two types of data packets; A dual traffic scheduling algorithm based on path traffic balance is designed to ensure that real-time data has higher priority, lower packet loss rate and smaller transmission delay than non-real-time data. Real-time data packet has lower transmission delay and higher reliability than non-real-time data packet.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN919.8;TP212.9

【共引文献】