Method and system for wireless communications using anti-interference to increase channel capacity

Abstract

A method and system for wireless communications between a sender and a receiver enables effective blocking of interference signals by other senders and improving the channel capacity. The receiver uses two or more receiving devices, such as antennas or smart antennas, to receive multiple wireless input signals. By performing a noise-transparent autocorrelation matching analysis on the multiple input signals, the receiver derives an anti-interference filter for interference-blocking action, without the need for information of the interfering vector. The information derived by the receiver may be further used to control the reception by the receiving devices of the receiver, or transmitted to the sender to control its transmission, such that the signal vector may be set to be parallel to the obtained filtering vector to achieve an enhanced channel capacity that may exceed the limit imposed by the well-known Shannon channel capacity of the original channel.

1 . A wireless communication device comprising:
 at least two receiving devices each for generating an input signal containing a signal component corresponding to wireless transmissions from a sender and an interference component corresponding to at least one interference signal;   a microprocessor connected to receive and process the wireless input signals, the microprocessor being programmed to derive a filtering vector by performing a noise-transparent autocorrelation matching analysis on the input signals, and to apply the filtering vector to remove the interference components from a combined signal formed by combining the input signals.   
   
   
       2 . A method of anti-interference operation for wireless communications between a sender and a receiver, comprising:
 generating, by the receiver, at least two separate input signals, each input signal having a signal component corresponding to wireless transmissions from the sender and an interference component corresponding to at least one interference signal;
 performing by the receiver a noise-transparent autocorrelation matching analysis on the at least two input signals to derive a filtering vector; and 
 applying the filtering vector on the at least two input signals to remove the interference components form a combined signal formed by combining the input signals. 
   
   
   
       3 . A method as in  claim 2 , further comprising:
 adjusting, by the receiver, reception of the wireless transmissions from the sender to modify a channel vector for the at least two input signals based on the filtering vector.   
   
   
       4 . A method as in  claim 2 , further comprising:
 transmitting by the receiver the filtering vector to the sender; and   adjusting by the sender wireless transmission parameters to modify a channel vector for the at least two input signals based on the filtering vector.