“…We also introduce a new problem of selecting the limited numbers of selfish paths [27] to realize the effect of path diversity in concurrent multipath transfers, but the impact and fairness of other paths are ignored. A cooperative overlay optimization approach [28] is proposed to improve the performance of the whole network, while considering the fairness between co-existing overlays, in which overlays can form coalitions freely for the purpose of cooperation. For the collaborations of multipath selection, we discuss the symmetric case [29] where all overlays have the same RTT and wastefulness level.…”