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Wireless ad hoc network routing protocols KTRP core Tree Optimization

Author: ZhangJun
Tutor: MaoYuMing
School: University of Electronic Science and Technology
Course: Communication and Information System
Keywords: Ad Hoc Network KTRP Sibling nodes directly connected Dynamic Root
CLC: TN929.5
Type: Master's thesis
Year: 2008
Downloads: 46
Quote: 1
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Abstract


Wireless transmission technology and network protocol development, making the Ad Hoc network to become a research hotspot. Ad Hoc network is not dependent on fixed infrastructure, with a self-organizing properties of the wireless network. It has a network convenient, flexible, subject to time and space constraints of small features, can be widely used in the rescue, the battlefield and adventure and other occasions. Because of limited resources and the network topology changes frequently, the traditional network protocol algorithm does not apply to Ad Hoc network. This gives Ad Hoc network routing problems posed a serious challenge, but also caused great concern. 863 \agreement has a hierarchical self-organization, hybrid routing and loop by the other characteristics. KTRP routing protocols through a wireless router (Wireless Router, WR) to solve the logical topology of the tree Ad Hoc network routing loop problem, easy to form larger networks. But the original KTRP routing protocol traffic rules and logic of the core tree topology brought circuitous route, easy to form the root bottleneck problems, leading to the core of the tree overhead is too large. In this paper, the problem, in the original KTRP improved method proposed agreement. First, the concept of \to communicate. Network redundancy caused by the forwarding overhead reduced, making the overall cost of reducing the core of the tree, the core problem of excessive overhead tree can be improved. Then this paper, the concept of dynamic root, root automatically updated using the principle of minimum hop count select the root node. This increases the network topology table NTT (Network Topology Table), from the root node for maintenance. This table contains all the nodes between the parent node, according to this relationship, the root node can calculate the topology of the network, and thus calculated for each node to the sum of all of hops. This table ensures root can understand the specific location information of all the nodes. This design on the basis of the principle of automatic updates root node, the root node by dynamically selecting the best strategy selection minimize the sum of the root node hops, as far as possible all the nodes in the network to the root of the sum of the minimum number of hops, thereby reducing the core tree routing overhead. From the overall implementation of the core of the tree optimization to improve network performance. This paper analyzes the existing Ad Hoc network routing protocol characteristics, the original KTRP protocol described in detail, focusing on analysis of the original KTRP protocol problems and propose a reasonable improvement program, and the optimized protocol emulation and simulation The results were analyzed.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Mobile Communications
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