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Multi-User Frequency-Selective Hybrid MIMO Demonstrated Using 60 GHz RF Modules. (arXiv:1711.02968v2 [cs.IT] UPDATED)
来源于:arXiv
Given the high throughput requirement for 5G, merging millimeter wave
technologies and multi-user MIMO seems a very promising strategy. As hardware
limitations impede to realize a full digital architecture, hybrid MIMO
architectures, using digital precoding and phased antenna arrays, are
considered a feasible solution to implement multi-user MIMO at millimeter wave.
However, real channel propagation and hardware non-idealities can significantly
degrade the performance of such systems. Experimenting the new architecture is
thus crucial to confirm and to support system design. Nevertheless, hybrid MIMO
systems are not yet understood as the effects of the wide channel bandwidths at
millimeter wave, the non-ideal RF front end as well as the imperfections of the
analog beamforming are often neglected. In this paper, we present a 60 GHz
MU-MIMO testbed using phased antenna arrays at both transmitter and receiver.
The base station equipped with a 32 phased antenna array allocates
simultaneous 查看全文>>