arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1202.1664cs.NI
收藏

移动Ad-Hoc网络中基于信任的QoS保证方案

Trust Based Scheme for QoS Assurance in Mobile Ad-Hoc Networks

Sridhar Subramanian, Baskaran Ramachandran

摘要:

移动自组织网络(MANET)是一种对等无线网络,其中节点可以在不使用诸如接入点或基站之类的基础设施的情况下彼此通信。这些网络是自我配置的,能够自我指导的操作和迅速部署。节点合作提供连接,无需集中管理即可运行。节点是巡回的,拓扑结构可以是非常动态的,并且节点必须能够中继业务,因为通信节点可能超出范围。移动自组网的动态特性使得网络易受攻击和不可靠。路由始终是任何网络中最重要的部分。每个节点不仅要为自己工作,而且要与其他节点合作。由于自私或恶意的节点行为不当会显着降低移动自组网的性能。由于这种行为不端的节点,如PDR,吞吐量和延迟的Qos参数直接受到影响。我们专注于信任管理框架,这是为了应付节点的不当行为问题,提高性能的移动自组网。基于信任的系统可以用来跟踪节点的这种行为不端,发现它们并将它们与路由隔离,并提供可靠性。本文提出了一种基于信任的可靠AODV协议[TBRAODV],它为每个节点实现了一个信任值。对于每个节点,计算信任值,并且基于信任值,允许节点参与路由,否则识别为行为不端的节点。这增强了AODV路由的可靠性,并导致PDR的增加,减少延迟和吞吐量保持不变。该工作在NS-2上实现并进行了仿真。仿真结果表明,与一般AODV协议相比,当移动自组网中存在行为异常的节点时,该协议能够提供更一致、更可靠的数据传输

英文摘要:

A mobile ad-hoc network (MANET) is a peer-to-peer wireless network where nodes can communicate with each other without the use of infrastructure such as access points or base stations. These networks are self-configuring, capable of self-directed operation and hastily deployable. Nodes cooperate to provide connectivity, operates without centralized administration. Nodes are itinerant, topology can be very dynamic and nodes must be able to relay traffic since communicating nodes might be out of range. The dynamic nature of MANET makes network open to attacks and unreliability. Routing is always the most significant part for any networks. Each node should not only work for itself, but should be cooperative with other nodes. Node misbehaviour due to selfish or malicious intention could significantly degrade the performance of MANET. The Qos parameters like PDR, throughput and delay are affected directly due to such misbehaving nodes. We focus on trust management framework, which is intended to cope with misbehaviour problem of node and increase the performance of MANETs. A trust-based system can be used to track this misbehaving of nodes, spot them and isolate them from routing and provide reliability. In this paper a Trust Based Reliable AODV [TBRAODV] protocol is presented which implements a trust value for each node. For every node trust value is calculated and based trust value nodes are allowed to participate in routing or else identified to become a misbehaving node. This enhances reliability in AODV routing and results in increase of PDR, decrease in delay and throughput is maintained. This work is implemented and simulated on NS-2. Based on simulation results, the proposed protocol provides more consistent and reliable data transfer compared with general AODV, if there are misbehaving nodes in the MANET

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑