Abstract
The expansion and diversification of wireless systems are proceeding rapidly, and the wireless communication environment will become a hybrid environment composed of multiple wireless systems. On the other hand, the resources of wireless systems are finite. Therefore, there is increasing concern that the growing use ofwireless systems will exhaust the finite wireless resources. Cognitive radio has been proposed as a solution to this problem. Cognitive radio aims to optimize the utilization of wireless resources by combining multiple wireless interfaces. Therefore, the future wireless access networks will be composed of multiple wireless systems. In this paper, we propose a packet distribution for communications using multiple IEEE802.11 wireless interfaces. The proposed method optimizes the utilization efficiency of multiple IEEE802.11 wireless interfaces based on a link cost which shows the load of the wireless link, and it improves delay and throughput in the access network. Furthermore, we show its impact on TCP.
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