A method for communicating data between Bluetooth Low Energy (BLE) devices (200, 202) in a network (100) comprising multiple nodes, the method comprising: broadcasting data from a broadcasting node (200); receiving the data at multiple receiving nodes (202); transmitting an acknowledgement (ACK) packet from each of the receiving nodes (202) to the broadcasting node (200), wherein each receiving node (202) waits for a waiting period before transmitting the ACK packet, and wherein the waiting period is a varying length of time for each receiving node (202).