Code on Network Coding, LLC

Massachusetts Institute of Technology

Technische Universitát Dresden

Code on Technologies Inc.

Kerim Fouli

Muriel Medard

Xiaomeng Shi

Marie-Jose Montpetit

Surat Teerapittayanon

Flavio Du Pin Calmon

Simon Wunderlich

Frank Gabriel

Sreekrishna Pandi

A machine-implemented method for use at a destination node for transferring data from a source node, the method comprising: establishing one or more connections with the source node; sending to the source node a request for a data stream, the request including control information to be applied at the source node, the control information including a number of degrees of freedom (DoFs) or frames to be transmitted across each of the one or more connections; and receiving one or more coded frames through the data stream over the one or more connections.

Method and apparatus for coded multipath network communication

In some embodiments, a method comprises: transmitting first data units from a source node to a destination node over a first path; receiving information about the availability of one or more second paths between the source and destination nodes; determining a cost associated with each of the one or more second paths; allocating a first number of second data units to the first path and a second number of second data units to the one or more second paths based on the determined costs; and transmitting the second data units from the source node to the destination node over the first path and/or the one or more second paths according to the allocation, wherein the first data units, the second data units, or both the first and second data units comprise network coded data.

Method and apparatus for coded multipath networking using path management and protocol translation

A method and apparatus decode packetized data in the presence of packet erasures using a finite sliding window technique. A decoder receives packets containing uncoded and coded symbols. When a packet with a coded symbol is received, the decoder determines whether a packet sequence number is within a sliding window of w consecutive sequence numbers that are no greater than a decoder sequence number, where the number w is fixed prior to encoding. When this is the case, the decoder decodes the coded symbol into one or more of the w input symbols using the coefficient vector. Decoding may use a forward error correcting (FEC) window within the finite sliding window. Decoding also may use a technique of Gaussian elimination to produce a 'shifted' row echelon coefficient matrix.

System and technique for sliding window network coding-based packet generation

Multipath coding systems, devices and methods are disclosed. In a multipath network, devices and methods generate at least one of a plurality of uncoded packets for transmission on a first path from a source node to a destination node as well as at least one coded packet based upon a set of uncoded packets for transmission on a second path from the source node to the destination node. The set of uncoded packets are formed, generated or otherwise provided from a next uncoded packet to be transmitted, a number (&#x3b1;) of previously transmitted uncoded packets, and a number (&#x3b2;) of uncoded packets that are to be transmitted after the next uncoded packet and &#x3b1;+&#x3b2; is greater than zero. The destination node operates to receive, and decode as needed, the uncoded and coded packets.

Multipath coding apparatus and related techniques

A network node having a receiver for receiving input packets, a local node memory where one or more parameters for coding are stored, an encoder for creating coded packets from the input packets using linear network coding, and a transmitter to transmit the coded packets. Each coefficient of the linear network coding is a parameter of the one or more parameters or a pre-determined function of the one or more parameters. A related method and a network are also presented.

Linear network coding with pre-determined coefficient generation through parameter initialization and reuse

Network-coding-enabled reliability architectures and techniques are provided that are capable of enhancing data transfer reliability and efficiency in next generation wireless networks. In some embodiments, the techniques and architectures utilize a flexible thread-based coding approach to implement network coding. The techniques and architectures may also, or alternatively, utilize systematic intra-session random linear network coding as a packet erasure code to support reliable data transfer.

Growing community of inventors

Cambridge, MA, United States of America

Kerim Fouli