Method and system for communications with reduced complexity receivers

• Main Author: KOSTIC ZORAN
• Format: Patent
• Language: English
• Published: 21.07.2009
• Subjects: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION ANDCOMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION ANDCOMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWNENERGY USE; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; JAMMING OF COMMUNICATION; SECRET COMMUNICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSMISSION

The invention provides a new method and system for low complexity, low cost, small component size, and low power communications. The system provides a digital sub-sampling receiver for multiple-antenna wireless receivers, with reduced number of analog RF/IF chains (or one chain) after a fixed number of receive antennas. The system provides a generator of transmit signals/sequences which are preconditioned by the operation of the system to compensate for spectral effects of ultra-low-rate sub-sampling, in that sequences preserve orthogonality under spectral repetition, spectral translation and spectral inversion. The system provides a management device to provide adaptation in transmit signals/waveforms/patterns as a function of channel and data source variations, such that communication data rates and capacities are maximized. The system can efficiently operate in multi-user multi-channel communication systems. The method implemented by the invention is split in its operation across the transmitter of the transmitting device and the receiver of the receiving device.