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This paper proposes Mobility technology of Multi RAT (Radio Access Technology) terminal based on SDN (Software Defined Network). It improves transmission speed and reduce handoff latency by using two network interfaces. These network interfaces make dual link with APs (Access Point). Each link has the separate role, Active and Standby. Active Link is used for communication and Standby Link is used...
In a Wi-Fi Direct network, a single battery-powered mobile device called group owner (GO) helps other mobile devices communicate each other without relying on a pre-existing infrastructure such as base stations. Hence, the Wi-Fi Direct defines two power saving schemes for the energy efficiency of GO, called opportunistic power save (OPS) and notice of absence (NoA). However, the Wi-Fi Direct specification...
The WAVE standard supports reliable safety message transmission to avoid the vehicle-to-vehicle (V2V) accidents. However, it overlooks a vehicle-to-pedestrian (V2P) accident since we do not have any support to exchange the safety messages between the pedestrians and vehicles. Nowadays, the pedestrians will be able to exchange the safety messages with vehicles through the mobile devices to avoid the...
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