VIRTUAL MIMO TRANSMITTERS, RECEIVERS, SYSTEMS AND METHODS

摘要

A system for doing BLAST with, fewer receive antennas or even only one receiving antenna is, provided. A system implementation architecture is provided together with a detailed analysis on its principle and theory behind this engineering solution to reduce the MIMO technology cost by using fewer antennas whilst achieving high spectrum efficiency. Examples are provided on how to implement this idea in a CDMA platform and in a OFDM platform. A transmitter comprises : N transmit antennas, where N>=2; wherein the transmitter is adapted to transmit a respective one of N transmit signals from each of the N antennas, the N transmit signals collectively containing a plurality N of main signals and plurality of delayed main signals each delayed main signal being a delayed version of one of the main signals, wherein each transmit signal comprises a combination of a respective main signal of the plurality of main signals and at least one respective delayed main signal of the N delayed main signals.