可搬型ネットワーク通信装置、使用ネットワークインターフェイス部の選択方法、コンピュータプログラム及びコンピュータ読み取り可能な記録媒体

摘要

A portable network communication device includes a plurality of first network interfaces, a communication controller that sends and receives a packet via one of the plurality of first network interfaces, a received signal strength determiner that determines a received signal strength of a signal received from each of the wireless base stations via each of the plurality of first network interfaces, a signal strength change calculator that calculates a value of change representing a magnitude of a change in determined received signal strength per unit time with respect to each of the plurality of first network interfaces, and an interface selector that selects a active network interface that is the first network interface used to send and receive the packet, among the plurality of first network interfaces, based on the calculated value of change.