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New method aimed to enhance the overall throughput of communication systems by utilizing outdated channel gain information for distributed interference compression and removal.
About
Interference is the main limitation faced by today wireless technologies, mainly due to the network densification, user density and the exponential increase in wireless data traffic verified in the last years. The dynamic nature of wireless communications further exacerbates the interference problem as the transmission and reception entities are unable to adapt as fast as the radio environment dynamics; namely, when they adapt the channel/network state may be already different and then the adaptation is detrimental, instead of beneficial. This technology proposes a method to efficiently compress and remove the interference generated by multiple receivers using only outdated channel information. Using this technology, the system throughput scales with the square root of the number of terminals (e.g., 500% throughput improvement in a scenario with 100 terminals). APPLICATIONS The technology is applicable in scenarios with several pairs of transmitters and receivers communicating simultaneously and using the same resources: - Vehicular and machine-to-machine communications - Scenarios with high density of users - Distributed data storage - Physical layer security for wireless communications BENEFITS - ENHANCED THROUGHPUT and proportional to the square root of the number of transmitter/receiver pairs. - DISTRIBUTED INTERFERENCE CANCELLATION using only outdated channel gain information. - MULTIPLE TRANSMITTER/RECEIVER PAIRS communicating using the same time and frequency resources. DEVELOPMENT STAGE TRL 3-4 - Laboratorial tests have been performed, with very promising numerical results. COMMERCIAL OFFERING - Licensing agreement - Testing new applications - Joint further developments TARGET MARKET Instituto de Telecomunicações seeks partners within information and communication technologies area (ICTs) to further develop or license the technology, as well as possible end-users for testing new applications. INTELLECTUAL PROPERTY - USA patent granted (US10476620) - European patent granted (EP17751468) TECHNOLOGY ID PI-0102 #DelayedChannelInformation #DistributedCompression #RepetitionCoding #InterferenceChannel #TransmissionOverASharedMedium #MultiTransmitterReceiverPairs #InterferenceAlignment
Key Benefits
- ENHANCED THROUGHPUT and proportional to the square root of the number of transmitter/receiver pairs. - DISTRIBUTED INTERFERENCE CANCELLATION using only outdated channel gain information. - MULTIPLE TRANSMITTER/RECEIVER PAIRS communicating using the same time and frequency resources.
Applications
The technology is applicable in scenarios with several pairs of transmitters and receivers communicating simultaneously and using the same resources: - Vehicular and machine-to-machine communications - Scenarios with high density of users - Distributed data storage - Physical layer security for wireless communications