Verizon Laboratories Inc.

Verizon Corporate Services Group Inc.

Arnold M Michelson

Evert Basch

Arianne Michelle Lewis

Derya H Cansever

Allen H Levesque

Systems and methods for encoding packetized data include applying different codings to the header and the payload. The header of a data packet is encoded for error correction separately from the payload of the data packet. The use of separate error correction techniques for the header and payload of a packet permits optimization of each for use in a data network, and more particularly, in a wireless data network.

Variable-strength error correction in ad-hoc networks

The present invention relates to a system and method for reliably transmitting data over wireless communication channels. The invented system comprises a transmitting device having an error control coding circuit and an interleaver circuit in communication with each other. The invented system also includes a receiving device having an error control decoding circuit and a de-interleaver circuit in communication with each other. The transmitting device and the receiving device communicate over a wireless communication channel . The error control coding circuit applies an error control code to the data before it is transmitted over the communication channel . The data is also interleaved prior to being transmitted. After transmission over the communication channel , the data is de-interleaved and any transmission errors are detected and corrected. The interleaving &ldquo;spreads out&rdquo; transmission errors over several data cells and thus makes the error control and correction process more effective and efficient.

System and method for reliable video transmission in wireless Asynchronous Transfer Mode networks with fading

The present invention relates to a system and method for reliably transmitting Internet Protocol (IP) data packets over fading Internet communication channels. The invented system comprises a transmitting device having an interleaver circuit . The invented system also includes a receiving device having a de-interleaver circuit . The transmitting device and the receiving device communicate over a fading Internet communication channel . The transmitting device applies error control coding to the IP packets before they are transmitted over the fading Internet communication channel . The Interleaver circuit interleaves the IP data packets before transmitting them over the fading Internet channel . The receiving device receives the interleaved IP packets from the fading Internet channel . The de-interleaver circuit de-interleaves the received IP data packets. The receiving device also uses the error control coding to detect and correct any errors incurred during transmission. The interleaving &ldquo;spreads out&rdquo; transmission errors over several IP packets and thus makes the error control and correction process more effective and efficient.

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Westwood, MA, United States of America

Arnold M Michelson