Invention Grant
US07664054B2 Neighbor location discovery with directional antennas in a mesh network
有权
在网状网络中定位天线的邻居位置发现
- Patent Title: Neighbor location discovery with directional antennas in a mesh network
- Patent Title (中): 在网状网络中定位天线的邻居位置发现
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Application No.: US11091641Application Date: 2005-03-28
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Publication No.: US07664054B2Publication Date: 2010-02-16
- Inventor: Atul Adya , Paramvir Bahl , Jitendra D. Padhye , Alastair Wolman
- Applicant: Atul Adya , Paramvir Bahl , Jitendra D. Padhye , Alastair Wolman
- Applicant Address: US WA Redmond
- Assignee: Microsoft Corporation
- Current Assignee: Microsoft Corporation
- Current Assignee Address: US WA Redmond
- Agency: Wolf, Greenfield & Sacks, P.C.
- Main IPC: H04L12/28
- IPC: H04L12/28 ; H04B7/00 ; H04B1/00 ; H04B15/00 ; H04W4/00 ; H04H20/67

Abstract:
Disclosed is a Neighbor Location Discovery Protocol (NLDP) that determines the relative locations of the nodes in a mesh network. In one embodiment, NLDP can be implemented for an ad-hoc wireless network where the nodes are equipped with directional antennas and are not able to use GPS. While NLDP relies on nodes having at least two RF transceivers, it offers significant advantages over previously proposed protocols that employ only one RF transceiver. In NLDP antenna hardware is simple, easy to implement, and readily available. Further, NLDP exploits the host node's ability to operate simultaneously over non-overlapping channels to quickly converge on the neighbor's location. NLDP is limited by the range of the control channel, which operates in a omni-directional fashion. However, by choosing a low frequency band, high power, and low data rate, the range of the control channel can be increased to match the range on the data channel.
Public/Granted literature
- US20060215624A1 Neighbor location discovery with directional antennas in a mesh network Public/Granted day:2006-09-28
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