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In recent years, wireless local area network (WLAN) has been deployed in many wireless applications. When the mobile node (MN) accesses different access points (AP), handoff latency may cause packet loss and result in serious problems in real-time applications. This paper proposes an efficient soft handoff scheme realized by dual-handoff. The MN maintains two active links to forward and backward APs...
It supports only one mobile terminal to roam in wireless network using mobile IP technology. We extend one terminal to a small network, and propose ldquoroaming subnetrdquo to support network roaming while keeping data connection with huge network. In a roaming subnet, home agent, foreign agent and intra-domain routing agent cooperate instead of traditional MAC level device. Mobile node in subnet...
In this paper, a novel video transmission scheme is proposed to meet the low-delay and error-robust requirement of wireless mobile communications. In the proposed scheme, a combination of selective repeat (SR) and stop-and-wait (SW) ARQ (Automatic Repeat reQuest), is adopted at the link layer. In addition, an adaptive FEC (forward error correction) scheme that has a different redundancy rate depending...
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