Method and apparatus for communicating data in a digital chaos cooperative network
First Claim
1. A method of cooperatively networking digital chaos signals over a wireless transmission performed at a receive side, comprising:
- a. receiving a plurality of distinct data signals at the receiving side, wherein each one of said plurality of distinct data signals is modulated with a distinct chaos sequence at a transmitting side, wherein the modulating of each one of said plurality of distinct data signals at the transmit side is performed using a generated digital chaos sequence database having plurality of digital chaos sequences, wherein the method for generating the digital chaos sequence database comprises, recording a featureless waveform having nonlinear dynamics, buffering the recorded featureless waveform, sampling a fixed number of samples for a particular spreading factor of said buffered featureless waveform, storing a varied quantity of groups of the fixed number of samples for a particular spreading factor to form the entries of the digital chaos sequence database, such that the groups of fixed number of samples for a particular spreading factor are distinct with low cross-correlation amongst the groups, and then processing all the groups of fixed number of samples using Gram-Schmidt process,b. demodulating each one of the plurality of distinct data signals at the receiving side to extract a plurality of distinct user data signals,c. verifying that at least one of the distinct user data signals is addressed to the receiving side, processing the at least one of the distinct user data signals according to whether the at least one of the distinct user data signal is addressed to a distinct group of receiving sides of a plurality of groups of receiving sides, wherein the plurality of groups of receiving sides includes the receiving side receiving the plurality of distinct data signals as a group member,d. verifying that a plurality of the extracted plurality of distinct user data signals is not addressed to the receiving side,e. aggregating the plurality of the extracted plurality of distinct user data signals not addressed to the receiving side to create a new aggregated data signals comprised of an aggregation of extracted plurality of distinct user data signals not addressed to the receive side, wherein the plurality of distinct user data signals at the receive sides are signal processed together to combat the effects of the wireless medium and mutual-interference to improve the detection for all active distinct users data signal,f. transmitting the aggregated plurality of extracted plurality of distinct user data signals not addressed to the receive side, where in the transmission is time aligned, and retransmitted over a wireless medium at the next transmission opportunity (Txop) or within the-time specified by a delay and disruption tolerant protocol known at the receiving side.
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Abstract
The present invention teaches a system and method for cooperatively networking digital chaos transmissions. The invention involves using generated digital chaos sequences as spreading sequences at a transmit side, receiving the spreaded signals at a receive side and despreading the signal, recovering signals at the receive side, comparing a stored replica of the digital chaos spreading codes to the digital chaos spreading codes used at the transmit side to, determining if the signals belong to predefined groups based on a predetermined criteria, and forward the signals to a group member based on its group member assignment.
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Citations
18 Claims
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1. A method of cooperatively networking digital chaos signals over a wireless transmission performed at a receive side, comprising:
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a. receiving a plurality of distinct data signals at the receiving side, wherein each one of said plurality of distinct data signals is modulated with a distinct chaos sequence at a transmitting side, wherein the modulating of each one of said plurality of distinct data signals at the transmit side is performed using a generated digital chaos sequence database having plurality of digital chaos sequences, wherein the method for generating the digital chaos sequence database comprises, recording a featureless waveform having nonlinear dynamics, buffering the recorded featureless waveform, sampling a fixed number of samples for a particular spreading factor of said buffered featureless waveform, storing a varied quantity of groups of the fixed number of samples for a particular spreading factor to form the entries of the digital chaos sequence database, such that the groups of fixed number of samples for a particular spreading factor are distinct with low cross-correlation amongst the groups, and then processing all the groups of fixed number of samples using Gram-Schmidt process, b. demodulating each one of the plurality of distinct data signals at the receiving side to extract a plurality of distinct user data signals, c. verifying that at least one of the distinct user data signals is addressed to the receiving side, processing the at least one of the distinct user data signals according to whether the at least one of the distinct user data signal is addressed to a distinct group of receiving sides of a plurality of groups of receiving sides, wherein the plurality of groups of receiving sides includes the receiving side receiving the plurality of distinct data signals as a group member, d. verifying that a plurality of the extracted plurality of distinct user data signals is not addressed to the receiving side, e. aggregating the plurality of the extracted plurality of distinct user data signals not addressed to the receiving side to create a new aggregated data signals comprised of an aggregation of extracted plurality of distinct user data signals not addressed to the receive side, wherein the plurality of distinct user data signals at the receive sides are signal processed together to combat the effects of the wireless medium and mutual-interference to improve the detection for all active distinct users data signal, f. transmitting the aggregated plurality of extracted plurality of distinct user data signals not addressed to the receive side, where in the transmission is time aligned, and retransmitted over a wireless medium at the next transmission opportunity (Txop) or within the-time specified by a delay and disruption tolerant protocol known at the receiving side. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of cooperatively networking digital chaos signals over a wireless transmission performed by a receive side, comprising:
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a. receiving an aggregated data signal having a plurality of distinct data signals containing distinct user data signals originating from a plurality of users, wherein each one of the plurality of distinct data signals is modulated with a distinct chaos sequence at a transmitting side, b. demodulating each one of said plurality of distinct data signals at the receiving side to extract the distinct user data signals, the modulating of the data signal being performed using a generated digital chaos sequence database, wherein the generating of the digital chaos sequence comprises, recording a featureless waveform having nonlinear dynamics in a memory, buffering the featureless waveform, sampling a fixed number of samples for a particular spreading factor of said buffered featureless waveform, storing a varied quantity of groups of the fixed number of samples for a particular spreading factor to form the entries of the database, such that the groups of fixed number of samples for a particular spreading factor are distinct with low cross-correlation amongst the groups, and then processing all the groups segments using Gram-Schmidt process, operating in a coordinated fashion to improve the overall network capacity for all users sharing the wireless medium, wherein said extracted distinct user data signals not addressed to the receiving side are aggregated, time aligned, and retransmitted over the wireless medium at the next transmission opportunity (Txop) or within the time specified by a delay and disruption tolerant protocol known at the receiving side, and c. signal processing the extracted distinct user data signals according to membership or non-membership to a particular group class. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method of processing an aggregate data signal in wireless transmission performed at a receive side, comprising:
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a. receiving an aggregate data signal at the receiving side, the aggregate data signal having a plurality of distinct data signals containing distinct user data signals originating from a plurality of users, wherein each one of the plurality of distinct data signals is modulated with a distinct chaos sequence at a transmitting side, b. demodulating the each one of the plurality of distinct data signal at the receiving side to extract the distinct user data signals, the modulating of the each one of the plurality of data signals being performed using a generated digital chaos sequence database containing the distinct chaos sequence, wherein the generating of the distinct digital chaos sequence comprises, recording a featureless waveform having nonlinear dynamics, sampling a fixed number of samples for a particular spreading factor to produce a group of independent digital chaos segments, storing a varied quantities of groups of the fixed number of samples for a particular spreading factor to form the entries of the database, and converting the group of independent digital chaos segments into a group of orthonormal sequences spanning the same subspace as the group of independent digital chaos segments, and c. operating in a coordinated fashion to improve the overall network capacity for all users sharing the wireless medium, wherein said extracted distinct user data signals not addressed to the receiving side are aggregated, time aligned, and retransmitted over the wireless medium at the next transmission opportunity (Txop) or within the time specified by a delay and disruption tolerant protocol known at the receiving side, wherein the receiving side operates in a coordinated fashion with any other receiver in the network to improve the overall network capacity for all users sharing the wireless medium, d. processing the extracted distinct user data signals according to membership or non-membership to a particular group class. - View Dependent Claims (14, 15)
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16. A method of cooperatively networking digital chaos signals over a wireless transmission performed at a receive side, comprising:
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a. receiving a data signal at the receiving side, wherein the data signal is modulated with a distinct chaos sequence at a transmitting side, b. demodulating the data signal at the receiving side to extract a distinct user data signal, the modulating of the data signal being performed using a generated digital chaos sequence database, wherein the generating of the digital chaos sequence comprises, recording a featureless waveform having nonlinear dynamics in a memory, buffering the featureless waveform, sampling a fixed number of samples for a particular spreading factor of said buffered featureless waveform, storing a varied quantity of groups of the fixed number of samples for a particular spreading factor to form the entries of the database, such that the groups of fixed number of samples for a particular spreading factor are distinct with low cross-correlation amongst the groups, and then processing all the groups segments using Gram-Schmidt process, c. processing the extracted distinct user data signals according to membership or non-membership to a particular group class, and d. signal processing the extracted distinct user data signals to operate in a coordinated fashion over the wireless medium such that it mimics the transmission from a common originating source and improves the overall network capacity for all active users to an at least one second receiver for, wherein said the signal processed, extracted distinct user data signals not addressed to the second receiver are aggregated, time aligned, and retransmitted over the wireless medium at the next transmission opportunity (Txop) or time specified by a delay and disruption tolerant protocol known at the receive side. - View Dependent Claims (17, 18)
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Specification