公开(公告)号：US06617990B1

公开(公告)日：2003-09-09

申请号：US10091032

申请日：2002-03-06

申请人： Eduardo Lorenzo-Luaces ,  Pertti O. Alapuranen ,  Guénaël T. Strutt

发明人： Eduardo Lorenzo-Luaces ,  Pertti O. Alapuranen ,  Guénaël T. Strutt

IPC分类号： H03M166

CPC分类号： H03M1/04 ,  H03M1/66

摘要： A system and method for providing discrete analog voltage levels. The system and method employs a pseudo-random sequence generator for generating random-sequences of binary values, namely zeros and ones, based on a digital input. The pseudo-random sequence serves to modulate a current source whose output is integrated to develop a constant discrete analog voltage output. This method reduces spurious frequency interference on the circuit. The system and method can be employed in a node of a wireless ad-hoc communications network.

摘要翻译： 一种用于提供离散模拟电压电平的系统和方法。 该系统和方法采用伪随机序列发生器，用于基于数字输入产生二进制值的随机序列，即零和1。 伪随机序列用于调制其输出被积分的电流源，以产生恒定的离散模拟电压输出。 该方法可以减少电路上的杂散频率干扰。 该系统和方法可用于无线自组织通信网络的节点。

公开(公告)号：US07412241B2

公开(公告)日：2008-08-12

申请号：US10863069

申请日：2004-06-07

申请人： Guénaël T. Strutt

发明人： Guénaël T. Strutt

IPC分类号： H04Q7/20

CPC分类号： H04W24/08 ,  H04L45/00 ,  H04L69/329 ,  H04W24/00 ,  H04W40/14 ,  H04W40/18 ,  H04W72/085 ,  H04W84/18 ,  H04W92/18

摘要： A system and method for locating optimal routes between source and destination nodes in a communications network, in particular, a wireless ad-hoc communications network by employing a link reliability algorithm that estimates the reliability of links between nodes using a prediction mechanism and a variable-weight filter. The prediction can be based on signal strength, signal-to-noise ratio or any statistic collected at the physical layer that is deemed representative of the quality of a link, and the weighting filter adjusts the predicted value based on the traffic conditions (e.g., idle, light traffic, moderate traffic or heavy traffic) being experienced by the nodes whose link quality is being estimated.

摘要翻译： 一种用于在通信网络，特别是无线自组织通信网络中定位源节点和目的节点之间的最佳路由的系统和方法，其采用链路可靠性算法，所述链路可靠性算法使用预测机制估计节点之间的链路的可靠性， 重量过滤器 该预测可以基于信号强度，信噪比或被认为代表链路质量的在物理层收集的任何统计量，并且加权滤波器基于交通状况调整预测值（例如， 空闲，轻微流量，中等流量或大量流量）正在估计链路质量的节点。

公开(公告)号：US07558818B2

公开(公告)日：2009-07-07

申请号：US10863534

申请日：2004-06-07

申请人： Avinash Joshi ,  Guénaël T. Strutt

发明人： Avinash Joshi ,  Guénaël T. Strutt

IPC分类号： G06F15/16 ,  G06F15/173

CPC分类号： H04W24/08 ,  H04L45/00 ,  H04L69/329 ,  H04W24/00 ,  H04W40/14 ,  H04W40/18 ,  H04W72/085 ,  H04W84/18 ,  H04W92/18

摘要： A system and method for characterizing the quality of a link, in particular, a bi-directional link, between nodes in a wireless communication network, such as a wireless ad-hoc peer-to-peer network, with minimum network overhead. The system and method determine the quality of link between two nodes by taking into consideration the view from both the nodes, and factors such as signal strength, signal-to-noise ratio or any statistic collected at the physical layer that is deemed representative of the quality of a link. The link quality can also be adjusted using a weighting factor.

摘要翻译： 用于以最小的网络开销来表征诸如无线自组织对等网络的无线通信网络中的节点之间的链路质量，特别是双向链路的质量的系统和方法。 系统和方法通过考虑两个节点的视图来确定两个节点之间的链路的质量，以及诸如信号强度，信噪比或被认为代表的节点的物理层收集的任何统计量 链接质量。 也可以使用加权因子来调整链路质量。