Meshnetworks, Inc.

Eduardo Lorenzo-Luaces

Pertti O Alapuranen

John M Belcea

Gu&eacute;na&euml;l T Strutt

The present invention provides a bandwidth efficient system and method of measuring the range between nodes () in a wireless communications network () with one-way data transfer, where each node () periodically transmits a message that contains information regarding neighboring nodes () from which any prior messages have been received by the transmitting node (). A node () receives the messages transmitted from neighboring nodes () in the network (), and records the times of arrival of the received messages. The node () receiving those messages can thus determine the respective distances between itself and the neighboring nodes () based on the respective time of arrivals of the received messages and the respective information included in the respective messages.

Bandwidth efficient system and method for ranging nodes in a wireless communication network

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.

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Lake Mary, FL, United States of America

Eduardo Lorenzo-Luaces