Patent ID: 11943038
Assignee: RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. A communications node for use in a millimeter wave cooperative network configured to spatially diversify a transmitted signal through all sets of consecutive, nonrepeating network segments including non-line-of-sight(NLoS) segments from a source node to a destination node, the communications node configured to forward a respective received signal toward the destination node via respective network segments including the NLoS segments, the communications node comprising:
a group of proximately located relays forming thereby a cluster of relays, wherein during a current time slot t, a controller performs steps of:
estimating first Channel State Information (CSI) associated with a currently selected relay and estimating second CSI associated with the network segments including NLoS segments traversed by the received signal;
performing beamforming at the currently selected relay using beamforming weights determined in accordance with a corresponding contribution to Signal-to-Intederence+Noise Ratio (SINR) of a current time slot signal V(t) received at the destination node; and
selecting a relay for a next time slot t+1 in accordance with the second estimated CSI associated with a maximized minimum mean square error (MMSE) predictor of a SINR of a next time slot signal V(t+1) received at the destination node;
wherein each of the estimating first CSI and the estimating second CSI is made using a channel model including a correlation kernel describing a correlation within the millimeter wave network between incoming and outgoing channels at each cluster, at different locations, and during different time slots.