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Abstract-We study the capacity of multi-hop wireless net. works with TCP regulated tramr We study the dependence of the capacity on the transmission range of nodes in the network. Specifically, we examine the sensitivity of the capacity tu the speed of the nodes and the number of TCP connections in an ad hoc net. work. By incorporating the notion of a minimal acceptable Qc3 metric (loss) for au individual session, we argue that the QoSaware capacity is a more accurate model of the TCP-centric capacity of an ad-hoc network. We study the dependence of capacity on the source application (Telnet or FTP) and on the choice of the ad-hoc routing protocol (AODV, DSR or DSDV). We conclude that persistent and non-persistent traIXc behave quite diNerently in an ad-hoc network.