Novel transceiver to improve 5G wireless communication functionality, security, and cost
UW–Madison researchers have designed a MIMO transceiver for improved interference suppression. The new design eliminates the need for a phase-coherent local oscillator.
More specifically, the new architecture – called differential MIMO or D-MIMO – enables linear interference suppression between multiple spatially multiplexed and differentially encoded data streams. In particular, it is based on a novel approach to quasi-coherent channel measurement from differential measurements that do not require phase coherence between transmitter and receiver. A number of system architectures – with different tradeoffs – are enabled by the invention.
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