Hierarchical Route Optimization by Using Tree information option in a Mobile Networks
K. K. Gautam, Menu Chaudhary
备注:
3 pages IEEE format, International Journal of Computer Science and Information Security, IJCSIS December 2009, ISSN 1947 5500, http://sites.google.com/site/ijcsis/
发表信息:
International Journal of Computer Science and Information Security, IJCSIS, Vol. 6, No. 3, pp. 121-123, December 2009, USA
The Networks Mobility (NEMO) Protocol is a way of managing the mobility of an entire network, and mobile internet protocol is the basic solution for Networks Mobility. A hierarchical route optimization system for mobile network is proposed to solve management of hierarchical route optimization problems. In present paper, we study Hierarchical Route Optimization Scheme using Tree Information Option (HROSTIO). The concept of optimization finding the extreme of a function that maps candidate solution to scalar values of quality, is an extremely general and useful idea. For solving this problem, we use a few salient adaptations and we also extend HROSTIO perform routing between the mobile networks.
In ad hoc networks, the scheduling of route-request packets should be different from that of message packets, because during transmission of message packets the location of the destination is known whereas in route discovery this is not known in most of the cases. The router has to depend upon the last known location, if any, of the destination to determine the center and radius of the circle that embeds all possible current position of the destination. Route-request packets generated from the source are directed towards this circle i.e., directional route discovery can be applied. Otherwise, …
Time Slotted Channel Hopping (TSCH) is a medium access protocol defined in the IEEE 802.15.4 standard which have been proven to be one of the most reliable options when it comes to industrial applications. TSCH has been designed to be utilized in static network topologies. Thus, if an application scenario requires a mobile network topology, TSCH does not perform reliably. In this paper we introduce active connectivity for mobile application scenarios, such as mobile robots. This is a feature that enables the option to regulate physical characteristics such as the speed of a node as it moves, i…
In mobile ad-hoc networks, nodes have to transmit HELLO or Route Maintenance messages at regular intervals, and all nodes residing within its radio range, reply with an acknowledgment message informing their node identifier, current location, and radio-range. Regular transmitting these messages consume a significant amount of battery power in nodes, especially when the set of down-link neighbors does not change over time and the radio-range of the sender node is large. The present article focuses on this aspect and tries to eliminate the number of HELLO messages in existing state-of-art protoc…
This paper aims to propose a system for automatically forming ad hoc networks using mobile phones and battery-powered wireless routers for emergency situations. The system also provides functions to send emergency messages and identify the location of victims based on the network topology information. Optimized link state routing protocol is used to instantly form an ad hoc emergency network based on WiFi signals from mobile phones of the victims, backup battery-powered wireless routers preinstalled in buildings and mobile devices deployed by search and rescue teams. The proposed system is als…
Delay and Delay Variation Constrained Algorithm based on VNS Algorithm for RP Management in Mobile IPv6
随着网络多媒体技术的发展,越来越多的实时多媒体应用需要使用组播通信来传输信息。随着移动IPv6协议通过移动接收器和源的到来,这些应用变得更加重要。这些应用程序需要一个多播路由协议,该协议具有在指定的QoS保证和快速恢复机制内到达多播接收器的数据包。移动IPv6组播时,接收者和组播者的移动性会导致严重的问题。当接收者或发送者移动时,整个多播树的质量可能会下降,从而不能有效地转发多播数据报。D2 V-RPM(delay and delay variation RP Manager)问题是在给定的时延和时延变化范围内,为所有组播会话选择一个最优的组播路由器作为共享组播树(ST)的根,如果该路由器不是最优的或者发生故障,则恢复该路由器。这个NP难问题需要通过启发式算法来解决。在本文中,我们提出了一种新的RP管理算法的基础上可变邻域搜索算法,基于一个系统的邻域变化。D2 VVNS-RPM算法综合考虑树代价、时延和时延变化来选择和恢复RP路由器。仿真结果表明,该算法具有良好的性能.
Routing protocols are used to transmit the packets from the source to the destination node in mobile ad hoc networks. The intruders seek chance to pierce into the network and becomes a cause of malfunctioning in the network. These protocols are always prone to attacks. During the phases of routing in different types of protocols, each of the attack finds a way to degrade the performance of the routing protocols. The reactive routing protocols DSR and AODV have lot of similar features and so are considered in this study. In order to transmit the packets safely, a secured approach using triple f…
Characteristics of the mobile ad-hoc networks such as nodes high mobility and limited energy are regarded as the routing challenges in these networks. OLSR protocol is one of the routing protocols in mobile ad hoc network that selects the shortest route between source and destination through Dijkstra's algorithm. However, OLSR suffers from a major problem. It does not consider parameters such as nodes energy level and links length in its route processing. This paper employs the artificial immune system (AIS) to enhance efficiency of OLSR routing protocol. The proposed algorithm, called AIS-OLS…
Time Slotted Channel Hopping (TSCH) is a medium access protocol defined in the IEEE 802.15.4 standard. It has been demonstrated to be one of the most reliable options when it comes to industrial applications. TSCH offers a degree of large flexibility and can be tailored to the requirements of specific applications. Several performance aspects of TSCH have been investigated so far, such as the energy consumption, the reliability, scalability and many more. However, mobility in TSCH networks remains an aspect that has not been thoroughly explored. In this paper we examine how TSCH performs under…
Simulation and Performance Analysis of MP-OLSR for Mobile Ad hoc Networks
移动自组织网络(Mobile Ad Hoc Networks,MANDO)是由一组无线移动节点组成的网络,这些节点不依赖于固定的基站或有线骨干网,可以动态地交换数据,这使得路由问题成为自组织网络设计中的一个关键问题。本文讨论了一种混合多路径路由协议MP-OLSR。它基于链路状态算法,采用周期性的消息交换来维护网络的拓扑信息。同时,它以按需方式更新路由表,并在源端确定的多条路径上转发数据包。如果检测到链路故障,算法会自动恢复路由。针对无线网络的不稳定性,采用了冗余编码的方法来提高传输率。NS 2仿真结果表明,新协议能有效地提高网络的性能。
The mobile network operators (MNOs) are looking into economically viable backhaul solutions as alternatives to fiber, specifically the hybrid fiber coaxial networks (HFC). When the latencies from both the wireless and the HFC networks are added together, the result is a noticeable end-to-end system latency, particularly under network congestion. In order to decrease total system latency, we proposed a method to improve upstream user- to-mobile core latency by coordinating the LTE and HFC scheduling in previous papers. In this paper, we implement and optimize the proposed method on a custom LTE…