channel_serving_consumer[j] = 1 makes each channel dependent on the selection of the previous ones.
Each channel must wait for previous channels to select consumers to service because, if they didn't, then the channels wouldn't know which ones to not choose and could all select the same consumer to service.
channel_serving_consumer[j] = 1 makes each channel dependent on the selection of the previous ones. Each channel must wait for previous channels to select consumers to service because, if they didn't, then the channels wouldn't know which ones to not choose and could all select the same consumer to service.