都市環境下での屋外無線システムにおける動的送信レート制御

概要

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Wireless LAN systems are widely used to interconnect school campuses and office buildings because it is cheap and easy to set up. Obtained throughputs of inter-building dynamically change. Transmitted bit rates should also be dynamically changed in order to increase quality of delivered video stream. We evaluated the existing dynamic rate control scheme on the inter-building 2.4 GHz wireless system between Kogakuin University and Waseda University. It is found that PER increases in a specific time period. In this paper, we propose a new dynamic rate control scheme to reduce PER with RTT and present evaluations on the wireless system. The evaluation shows that the proposed control scheme reduces PER by over 2% during alO minute period compared with the existing control scheme.
工学院大学の論文