Description: 无线传感器星型网络的节点的基站程序,采用802.15.4协议-Star-shaped network of wireless sensor nodes of the base station procedures, using 802.15.4 Platform: |
Size: 534528 |
Author:chenling |
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Description: 无线传感器网络节点寿命，网关数，网络瓶颈、网关数仿真-Wireless sensor network nodes life expectancy, the number of gateways, network bottlenecks, Gateway few simulation Platform: |
Size: 8192 |
Author:yanshulei |
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Description: 本论文研究的主要内容是设计基于CC2420的Zigbee无线传感器硬件节点,通过对Zigbee协议的理解与分析设计并完成一个通信节点。本文中选择的射频芯片CC2420，是挪威Chipcon公司推出的一款符合IEEE 802.15.4标准的收发芯片，只需很少的外围元件就可以与单片机构成一个无线通信系统 微处理器是ATMEL公司生产的RISC结构的8位单片机ATmega128。-This paper studies the design of the main contents of the CC2420-based hardware Zigbee wireless sensor nodes, through the Zigbee protocol understanding and analysis of the design and completion of a communication node. In this paper, select the radio frequency chip CC2420, is a Norwegian company Chipcon launched a line with the standard IEEE 802.15.4 transceiver chips, only very few external components can be and constitute a single-chip wireless communication system is a microprocessor ATMEL Corporation production RISC architecture 8-bit MCU ATmega128. Platform: |
Size: 1477632 |
Author:刘炜 |
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Description: 定向扩散（Directed Diffusion, DD）协议在omnet++模拟器上的实现。原理：Sink 向所有传感器节点发送兴趣(兴趣是通过分配不同的属性值来表示不同任务的描述符) , 每个传感器节点在收到兴趣后将其保存在各自的 CACHE 中。每个兴趣项包含一个时间标签域和若干个梯度域。当一个兴趣传遍整个网络后, 从 Source 到 Sink 之间的梯度就建立起来了，梯度反映了网络中节点对匹配请求条件的数据源的近似判断。一旦Source 采集到兴趣所需的数据, 那么它将沿着该兴趣的梯度路径传输数据到汇集点或基站。-Directional proliferation (Directed Diffusion, DD) agreement omnet++ Realize simulator. Principle: Sink to all sensor nodes send interest (interest is through the distribution of different attribute values to express a different mission descriptors), each sensor node after the receipt of interest in the preservation of their respective CACHE. Interest of each tag contains a time domain and a number of gradient domain. When an interest throughout the network, from the Source to Sink gradient between the built up, the gradient reflects the network node on the request of the conditions of matching the data source to determine approximate. Once the Source of interest collected the required data, it would be interested in the gradient along the path to transmit data to the focal point or base station. Platform: |
Size: 657408 |
Author:xiaomeihua |
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Description: 无线传感器网络的传感器节点多布置在环境恶劣的区域，人们往往无法到达，更换电池变为一种不可能，因此极其需要一种能够节省能量的MAC层协议-Wireless sensor networks sensor nodes arranged in more environmentally degraded areas, people often can not reach, the replacement of the battery into an impossible, therefore a great need to save energy, MAC layer protocol Platform: |
Size: 24576 |
Author:乐峰 |
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Description: matlab 仿真程序可用于kalman滤波应用。- INTRODUCTION
This example simulates distributed control of a DC-servo. The example
contains four computer nodes, each represented by a TrueTime kernel
block. A time-driven sensor node samples the process periodically and
sends the samples over the network to the controller node. The control
task in this node calculates the control signal and sends the result
to the actuator node, where it is subsequently actuated. The
simulation also involves an interfering node sending disturbing
traffic over the network, and a disturbing high-priority task
executing in the controller node Platform: |
Size: 21504 |
Author:zhangxiangbin |
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Description: Example: Distributed Wireless Control System，可用于无线传感器网络中-This example shows distributed control of a DC-servo using
communication over a wireless network. The example also shows how to
simulate power consumption and how to use the battery block. The model
contains two computer nodes located 20 m apart, each represented by a
TrueTime kernel block. A time-driven sensor/actuator node samples the
process periodically and sends the samples over the network to the
controller node. The control task in this node calculates the control
signal and sends the result back to the sensor/actuator node, where it
is actuated. The wireless communication link is at the same time
subject to a simple power control scheme. Power control tasks running
in both the sensor/actuator node and in the controller node
periodically send out ping messages to the other node to test the
channel transmission. If a reply is received, the channel is assumed
to be good and the transmission power is lowered. If on the other hand
no reply is received, then the transmi Platform: |
Size: 12288 |
Author:zhangxiangbin |
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Description: Matlab based wireless sensor network code for hetrogeneous application in Airports. This is based on clustering of nodes. Platform: |
Size: 2048 |
Author:wireless |
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Description: 无线传感器网络的所有锚节点的能量分布的一个仿真，有详细的程序分析和解释。-Wireless sensor networks for all of the energy distribution of anchor nodes in a simulation, there is a detailed program analysis and interpretation. Platform: |
Size: 2048 |
Author:Helen |
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Description: 无线传感器网，PEGASIS算法组网程序。在1*1范围内的以node_number个节点，以PEGASIS算法成网。-Wireless sensor networks, PEGASIS algorithm networking program. 1* 1 to node_number within the nodes in order to PEGASIS algorithms into a network. Platform: |
Size: 1024 |
Author:dawn |
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Description: 通过单一的Wi-Fi接入点的信号强度来判断移动物体的位置。比较新的一篇文章。用了蒙特卡罗抽样的办法－Monte Carlo Sampling Method－来估计位置。-This paper describes research towards a system
for locating wireless nodes in a home environment requiring
merely a single access point. The only sensor reading used for
the location estimation is the received signal strength indication
(RSSI) as given by an RF interface, e.g.,Wi-Fi.Wireless
signal strengthmaps for the positioning filter are obtained by
a two-step parametric and measurement driven ray-tracing
approach to account for absorption and reflection characteristics
of various obstacles. Location estimates are then
computed using Bayesian filtering on sample sets derived
by Monte Carlo sampling. We outline the research leading
to the system and provide location performance metrics using
trace-driven simulations and real-life experiments. Our
results and real-life walk-troughs indicate that RSSI readings
from a single access point in an indoor environment
are sufficient to derive good location estimates of users with
sub-room precision. Platform: |
Size: 452608 |
Author:weihuagao |
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Description: 无线传感器网络 CAB定位仿真程序
这是无线传感器节点定位CAB算法的仿真程序，由matlab完成-Wireless sensor network simulation program CAB positioning is CAB localization algorithm for wireless sensor nodes in the simulation program, completed by the matlab Platform: |
Size: 1024 |
Author:范玉红 |
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Description: Estimating the positions of sensor nodes is a fundamental and
crucial problem in ad hoc wireless sensor networks (WSNs).
In this paper, an accurate node localization method for WSNs
is devised based on the weighted least squares technique with
the use of time-of-arrival measurements. Computer simulations
are included to evaluate the performance of the proposed
approach by comparing with the classical multidimensional
scaling method and Cram´ er-Rao lower bound. Platform: |
Size: 518144 |
Author:pravin jadhav |
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Description: 在matlab软件下实现传感器节点的拓扑设置以及DV_hop算法，得到未知节点的坐标-Matlab software in the topology of sensor nodes to achieve DV_hop algorithm settings and to get the coordinates of the unknown node Platform: |
Size: 1024 |
Author:huyan |
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Description: 针对煤矿井下巷道狭长，信号多径效应明显，接收信号强度（RSSI）测距算法受井下环境影响大，定位精度低的情况，提出了一种信标节点链式部署结构下的动态RSSI测距算法，该算法以信标节点间的距离和它们间测量到的RSSI值为参考，计算巷道内实际环境下的路径衰落指数，以提高RSSI测距算法对环境的适应性。-A dynamic RSSI location algorithm is proposed based on the beacon nodes chain deployment of tunnel Wireless Sensor Networks and the algorithm takes the distance and the corresponding RSSI between the adjacent beacon nodes into account to calculate the actual path loss parameter in the tunnel, thus improving the environmental adaptation of the location algorithm. Platform: |
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Author:qiaogz |
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Description: Wireless Sensor Networks (WSN) is different than the Cellular Networks as I mentioned earlier.
A WSN is composed of a large number of sensor nodes that communicate using a wireless medium (air).
The sensor nodes are deployed randomly in the environment to be monitored.
The sensor nodes distributed in ad hoc structure.
In WSN there is no base station and not all nodes hear each other.
The WSN is a multi-hop network.
Basic part of my code is to randomly place the sensor nodes in the given space then connecting each two nodes if the distance between them less than or equal to the communication radius. Platform: |
Size: 41984 |
Author:khala |
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Description: 传感器节点在链状拓扑结构中的传输仿真，可控制跳距，跳数，节点间距离(The transmission simulation of sensor nodes in chain topology can control hop distance, hop count and distance between nodes) Platform: |
Size: 6144 |
Author:萝卜大帅
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Search - sensor nodes in matlab