Description: Opportunistic routing is an emerging technology that takes advantage of the broadcast nature of wireless networks. In opportunistic networks, mobile nodes communicate even if a connecting route doesn’t exist. In Traditional routing protocols fixed routes are selected for transmission and packets are forwarded for each hop. In dynamic wireless environment, transmission failures occur frequently due to path breaks and demands retransmissions. This unreliable transmission causes additional traffic in the network and waste of network resources and bandwidth. Opportunistic routing promises to be an efficient routing protocol to improve the performance of wireless networks providing increased network throughput and transmission reliability. This paper discusses the concept behind opportunistic routing, its classification, metrics used, and efficiency of these protocols. Platform: |
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Author:rathi |
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Description: reate a mixed scenario consisting of a wireless and a wired domain, where data is exchanged between the mobile and non-mobile nodes Platform: |
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Author:ajeet |
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Description: #采用一个有3个移动节点的实例来讲解利用NS2进行无线网络模拟的具体流程，场景设置为
#一个500mx400m的矩形区域中
#移动Adhoc网络使用DSDV路由算法，三个节点的初始位置分别设置为(5,5,0)、(490,285,0)
#和(150,240,0)，然后再适当的时候设置它们移动方向、速度。并在节点0和节点1之间尝试-# Using an instance of the mobile node the NS2 to explain the use of the wireless network simulation process, the scene is set for Mobile Adhoc## a 500mx400m of the rectangular area network using DSDV routing algorithm, three nodes are set to an initial position (5,5,0), (490,285,0)# (150,240,0), and then set their direction of movement, then the appropriate speed. And try to nodes 0 and 1 Platform: |
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Author:王丹丹 |
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Description: 本系统主要由Zigbee无线传感器网络，基于ARM-Linux平台的嵌入式网关，本地上位机监控软件和远程Internet监控软件四部分组成。网络节点设备主要由Zigbee模块和以MSP430F149单片机作为控制芯片的数据采集模块组成，主要采集井下温度，甲烷等环境参数。根据功能，网络节点设备可分为网络协调器设备，具有网络路由和终端功能的定位参考节点设备，待定位的移动盲节点设备三种。系统工作时，协调器上电负责网络初始化和建网，定位参考节点和移动盲节点上电后自动搜寻网络并加入网络，-The system consists of Zigbee wireless sensor network based on ARM-Linux platform, embedded gateway, the local PC monitoring software and remote Internet monitoring software in four parts. Network node equipment mainly by Zigbee module and to control chip MSP430F149 microcontroller as data acquisition modules, mainly collected downhole temperature, methane and other environmental parameters. According to the function, the network node apparatus can be divided into network coordinator device, network routing and terminal functions with the positioning reference node device to be positioned a mobile node device blind three. System work, the coordinator is responsible for network initialization and power network construction, positioning reference nodes and mobile nodes blind after power automatically search the network and to join the network, Platform: |
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Author:zj |
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Description: 基于NS-2对无线网络协议AODV的仿真和分析，搭建了一个十三节点的移动通信仿真模型，通过对这些节点各个参数的具体配置，顺利实现节点与节点之间的通信过程，并且对整个网络进行了相关性能的测试和分析。-it introduced the simulation and analysis of wireless network protocol AODV based on NS-2. It built thirteen nodes mobile communication simulation model. Through configuring each of these nodes’ parameters, it smoothly achieved the communication process between nodes. And it tested and analyzed the relevant performance of entire network. Platform: |
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Author:xl |
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Description: AODV is adhoc on demand routing protocol.It is a basic reactive routing protocol in wireless adhoc networks.This tcl script file is an executable ns file.It consists of 12 mobile nodes. Platform: |
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Author:Rohit |
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Description: GPSR will allow the building of networks that cannot scale using prior routing algorithms for wired and wireless networks. Such classes of networks include:
Sensor networks: potentially mobile, potentially great density, vast numbers of nodes, impoverished per-node resources
Rooftop networks: fixed, dense deployment of vast numbers of nodes
Vehicular networks: mobile, non-power-constrained, widely varying density
Ad-hoc networks: mobile, varying density, no fixed infrastructure - GPSR will allow the building of networks that cannot scale using prior routing algorithms for wired and wireless networks. Such classes of networks include:
Sensor networks: potentially mobile, potentially great density, vast numbers of nodes, impoverished per-node resources
Rooftop networks: fixed, dense deployment of vast numbers of nodes
Vehicular networks: mobile, non-power-constrained, widely varying density
Ad-hoc networks: mobile, varying density, no fixed infrastructure Platform: |
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Author:neeraj |
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Description: Unlike infrastructure based wireless networks, nodes
in mobile ad hoc networks (MANETs) will also have to act as
intermediate nodes for data routing. These additional
transmissions will further drain the power resources of mobile
nodes which are anyway likely to be running on limited battery
power. This paper proposes a Power-Aware Ad hoc On-demand
Distance Vector routing protocol (PAW-AODV) for such power
limited applications. This uses the overall power resources of the
system more efficiently than the standard AODV protocol by
choosing routes based on a power-based cost function. We
implement our proposed PAW-AODV protocol by suitably
modifying AODV and study it through simulations using
QUALNET. Platform: |
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Author:NIRDESH |
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Description: gpsr protocol
Greedy Perimeter Stateless Routing (GPSR)
In wireless networks comprised of numerous mobile stations, the routing problem of finding paths a traffic source to a traffic destination through a series of intermediate forwarding nodes is particularly challenging. When nodes move, the topology of the network can change rapidly. Such networks require a responsive routing algorithm that finds valid routes quickly as the topology changes and old routes break. Yet the limited capacity of the network channel demands efficient routing algorithms and protocols, that do not drive the network into a congested state as they learn new routes. The tension between these two goals, responsiveness and bandwidth efficiency, is the essence of the mobile routing problem. -gpsr protocol
Greedy Perimeter Stateless Routing (GPSR)
In wireless networks comprised of numerous mobile stations, the routing problem of finding paths a traffic source to a traffic destination through a series of intermediate forwarding nodes is particularly challenging. When nodes move, the topology of the network can change rapidly. Such networks require a responsive routing algorithm that finds valid routes quickly as the topology changes and old routes break. Yet the limited capacity of the network channel demands efficient routing algorithms and protocols, that do not drive the network into a congested state as they learn new routes. The tension between these two goals, responsiveness and bandwidth efficiency, is the essence of the mobile routing problem. Platform: |
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Author:neeraj singla |
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Description: this a example of DSR (Dynamic source Routing) protocol in MANET (Mobile Ad-Hoc Network).
In this scenario,using wireless and 3 nodes. The traffic using TCP (Transmission COntrol Protocol)
this code run in ns-2.34 or above -this is a example of DSR (Dynamic source Routing) protocol in MANET (Mobile Ad-Hoc Network).
In this scenario,using wireless and 3 nodes. The traffic using TCP (Transmission COntrol Protocol)
this code run in ns-2.34 or above Platform: |
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Author:gungpremapradana |
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Description: 模拟两级复制算法，引入了将系统进行分级的思想。该算法充分考虑了典型的移动计算环境中可信部分和移动部分的性能差异，将整个移动计算环境分为两级，第一级是通过固定网络保持连接的基结点，每个基结点维护数据库的一个副本，且这个基结点是大部分数据对象的结点，此级复制是基结点之间的复制。第二级为时常处于断连状态的移动结点，它们有时候通过无线网络与基结点相连接，有时处于断接状态，也存有数据库的部分副本，此级复制是指移动结点与基结点之间的复制。这样，可信部分总能保持传统分布计算环境下的若干特征，而不会因为移动计算的引入对系统性能产生不良的影响。
两级复制机制的主要研究目的在于保证所有结点的数据在经过一些临时状态的改变后能够趋于一致。
-Analog two replication algorithm, introduced the grading system of thought. The algorithm takes into account the typical mobile computing environments trusted part of the performance differences and moving parts, the entire mobile computing environment is divided into two stages, the first stage is the base nodes remain connected via the fixed network, each base node maintain a copy of the , and the group node is the node most of the data object, this base-level replication is replicated between nodes. The second level is often in a state of disconnection mobile nodes, they are sometimes connected through a wireless network to the base node, sometimes in a disconnected state, there are also part of the copy of the , this level refers to the mobile node replication and Copy groups between nodes. Thus, to maintain a credible part of the total number of feature traditional distributed computing environment, and not because of the introduction of mobile computing adverse effect on system p Platform: |
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Author:aha |
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Description: 在无线传感器网络中，简单的sink节点移动遍历所有传感器节点，直接可以用，移动sink无线传感器网络基础程序。-In wireless sensor networks, a simple sink node moves through all the sensor nodes can be used directly, mobile sink wireless sensor network infrastructure program. Platform: |
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Author:莫文杰 |
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Description: 在无线传感器网络中，简单的sink节点移动遍历所有传感器节点，直接可以用，移动sink无线传感器网络基础程序。-In wireless sensor networks, a simple sink node moves through all the sensor nodes can be used directly, mobile sink wireless sensor network infrastructure program. Platform: |
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Author:莫文杰 |
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Description: A mobile ad hoc network is a self-organizing and rapidly deployable network in which neither a wired backbone nor a centralized control exists. The network nodes communicate with one another over scarce wireless channels in a multi-hop fashion. The ad hoc network is adaptable to the highly dynamic topology resulting the mobility of network nodes and the changing propagation conditions.-A mobile ad hoc network is a self-organizing and rapidly deployable network in which neither a wired backbone nor a centralized control exists. The network nodes communicate with one another over scarce wireless channels in a multi-hop fashion. The ad hoc network is adaptable to the highly dynamic topology resulting the mobility of network nodes and the changing propagation conditions. Platform: |
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Author:Karthik |
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Description: Wireless sensor networks with mobile sink are ex-pected to increase the flexibility for gathering information in large-scale sensing and detecting environments. Energy saving becomes one of the most important features of the sensor nodes to extend their lifetime in such networks. A novel tree-based power saving scheme is proposed in this paper to reduce the energy consumption in wireless sensor networks with mobile sink. We adopt a dynamic sorting algorithm to create a tree-cluster routing structure for the sensor nodes. The main goal of this scheme is to reduce the data transmission distances of the sensor nodes by employing the tree structure and multi-hop concepts. Based on the location of mobile sink, the distances between the sensor nodes, and the residual energy of each sensor node, the proposed scheme makes an efficient decision for creating the routing structure. The energy consumption is reduced and the lifetime is extended for the sensor nodes by balancing the network load. Platform: |
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Author:wadgiad |
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Description: GPSR贪心算法路由协议NS2的相关代码，包括NS2的脚本文件和无线传感器网络的移动节点仿真模拟。-GPSR greedy algorithm routing protocol NS2 related code, including the NS2 script file and wireless sensor network simulation of mobile nodes. Platform: |
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Author:刘怀进 |
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Description: 是olsr协议的改进版本,用于更好实现路由(Optimized Link State Routing (OLSR) protocol is
a table-driven proactive routing protocol for wireless mobile ad
hoc networks. The key idea behind this protocol is to reduce the
control message overheads by marking subset of neighbors as
Multi-Point Relays (MPRs). In this paper, we discuss problems
of OLSR or other routing protocols that are due to mobility of
nodes. We integrate our solutions to OLSR protocol and call it
as Position-based OLSR (P-OLSR). Performance evaluation of
OLSR and P-OLSR is done through NS simulation. Simulation
results show that P-OLSR outperforms OLSR with respect to
packet delivery, throughput, latency and normalized overheads) Platform: |
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Author:随便起的名字 |
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Description: 智慧农业物联网应用平台将物联网技术运用到传统农业中去，运用传感器和软件通过移动平台或者电脑平台对农业生产进行控制，依托部署在农业生产现场的各种传感节点（环境温湿度、土壤成分、PH值、二氧化碳、光照强度、气压、图像等）和无线通信网络实现农业生产环境的智能感知、智能预警、智能决策、智能分析、专家在线指导，为农业生产提供精准化种植养殖、可视化管理、智能化决策。(Intelligent Agricultural Internet of things application platform applies Internet of things technology to traditional agriculture, uses sensors and software to control agricultural production through mobile platform or computer platform, relying on various sensor nodes (environmental temperature and humidity, soil composition, pH value, carbon dioxide, light intensity, air pressure, image, etc.) and wireless communication network deployed in agricultural production site The intelligent perception, intelligent early warning, intelligent decision-making, intelligent analysis and expert online guidance of agricultural production environment provide precise planting and breeding, visual management and intelligent decision-making for agricultural production.) Platform: |
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Author:你好郑生 |
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Search - mobile wireless nodes.