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This work presents and evaluates an end-to-end wireless network QoS architecture, named DiffMobil. DiffMobil is composed by DiffServ over the IP core network and by the following modules over the circuit switched network: QoS negotiation, congestion control (composed by diagnosis and admission control) and flow control. DiffMobil [9, 11] can be implemented over any kind of wireless network: GPRS,...