Open-loop distributed beamforming for multiple destinations

A method for collaborative wireless communication implemented at a first node of a first plurality of nodes in a source cluster, the method comprising:

• performing a bidirectional communication with a reference node in the source cluster;
• receiving, from a destination cluster comprising a second plurality of nodes, a probe generated using a phase associated with the destination cluster;
• estimating, based on a propagation delay of the probe, a delay parameter;
• generating, based on the phase associated with the destination cluster and the delay parameter, a channel estimate;
• and
• transmitting, to each of the second plurality of nodes, a common message generated using a phase value and a delay value, wherein the phase value and the delay value are derived based on the channel estimate, and
• wherein the destination cluster is remotely located from the source cluster.

A wireless communication apparatus comprising a processor and a transceiver, wherein the processor is configured to perform a method comprising:

• performing, using the transceiver, a bidirectional communication with a reference node in a source cluster;
• receiving, using the transceiver, from a destination cluster comprising a second plurality of nodes, a probe generated using a phase associated with the destination cluster;
• estimating, based on a propagation delay of the probe, a delay parameter;
• generating, based on the phase associated with the destination cluster and the delay parameter, a channel estimate;
• and
• transmitting, using the transceiver, to each of the second plurality of nodes, a common message generated using a phase value and a delay value, wherein the phase value and the delay value are derived based on the channel estimate, and
• wherein the destination cluster is remotely located from the source cluster.