Multi-access diversity gain via multiple base station cooperation in frameless ALOHA

We study frameless ALOHA with multiple base station (BS) cooperation, where the coverage area of each BS partially overlaps, and the BSs cooperate via a backhaul network to share successfully retrieved packets. The exact packet loss rate for networks with the arbitrary number of BSs is theoretically analyzed, which reveals how the throughput improvement is achieved. Computer simulations confirm that multiple BS cooperation significantly improves the throughput performance.