Zoltán Gál, Andrea Karsai, Péter Orosz
Evaluation of IPv6 Services in Mobile WiFi Environment
IPv6 may play an important role in the introduction of mobile services in next generation networks. One of the key questions in this context is the impact of mobility on the TCPv6 and UDPv6 services. In this work, comparative measurements have been carried out in an outdoor WiFi test system, containing IEEE 802.11b access points and mobile clients, to understand the effects of the processes occurred during the roaming phase of the WiFi system on the IPv4 and IPv6 connections. One of the conclusions is that the TCP connections are significantly affected by the interaction between the relative speed of mobile clients to the APs and the execution of roaming, whilst it has minor effect to the UDP transfer. Furthermore, we demonstrated that the IPv6 protocol provides a higher quality in a mobile environment than its predecessor, the IPv4.