DEIM Forum 2017 H2-2 Android LAN Android 1 Android LAN
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- はすな うすい
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1 DEIM Forum 2017 H2-2 Android LAN Android 1 Android LAN Ayano KOYANAGI, Saneyasu YAMAGUCHI, and Masato OGUCHI Ochanomizu University Otsuka, Bunkyou-ku, Tokyo, JAPAN Kogakuin University Nishi-shinjuku, Shinjuku-ku, Tokyo, , Japan {ayano,oguchi}@ogl.is.ocha.ac.jp, sane@cc.kogakuin.ac.jp 1. Android Android (AP) LAN AP Android OS, Android. Android, Google Android OS,,, OS ( ) [1] LAN (AP) AP LAN LAN 3G LTE Wi-Fi
2 Wi-Fi LAN Wi-Fi [2] 2. 4 [3] [4] CPU, Web Android OS [3] [4] [5] Wi-Fi MAC Roy Friedman TCP [6] [6] Wi-Fi Wi-Fi AP Wi-Fi AP 1 AP Android LAN AP Android 1 iperf Android AP Model number nexus S Firmware version Android Baseband version I9023XXKD1 Kernel version Build number OS ai JRO03L Ubuntu 14.04(64bit)/Linux3.0.1 Server CPU Intel(R)Core 2Quad CPU Q8400 Main Memory 7.8GiB AP Model MZK-MF300N(Planet) Communication system IEEE g 1 1% = (MBytes) 30 (%) AP AP Android 0.3m (1)
3 AP Android 3 AP 5. 2 (MW) [8] AP [9] 5. 3 MW 5 AP (0.3m) 1% Android AP PC Linux TCP Probe Android Linux PC [7] Android 4 TCP TCP RTT RTT 5 AP (10m) 6 6 AP AP Android 5 4
4 7 2 = (2) 9 ratio rtt AP AP 1% AP MW AP 5 ratio rtt RTT RTT (min rtt) min rtt RTT 3 (ratio rtt) ratio rtt = RTT min rtt (3) ratio rtt RTT CA STATE ratio rtt ratio rtt 9 count ca0 CA STATE 0 ca sum CA STATE0 4 count ca0 ca cum 0 CA STATE 0 0 count ca0 ca sum 1 0 ca sum 1 count ca0 ca sum
5 2 AP ratio rtt AP 0.3m 10m 2 3m 5m 7m max min 4, 5 3m 5m 7m max min 3 Xm max = 10m max 0.3m max (X 0.3) 0.3m max (4) Xm min = 3 10m min 0.3m min (X 0.3) 0.3m min (5) m 10m max min max min 0 = ratio rtt = ratio rtt = ratio rtt =ratio rtt = ratio rtt m 5m 7m max min max min max min 0 = ratio rtt = ratio rtt = ratio rtt = ratio rtt = ratio rtt RTT (min rtt) min rtt RTT 3 (ratio rtt) ratio rtt = RTT min rtt (6) 0 2m 0.3m 2 4m 3m 4 6m 5m 6 8m 7m 8m 10m 2 3 AP MW MW MW MW %
6 MW AP 0.3m 10m MW 5 3m 5m 7m m 10m MW D MW A MW A MW C MW A MW B MW C MW B 4 MW A MW B MW C MW D max min max min max min max min 0 = ratio rtt = ratio rtt = ratio rtt =ratio rtt = ratio rtt m(D) 3m 5m 7m 10m(A) max min max min max min max min max min 0 = ratio rtt = ratio rtt = ratio rtt =ratio rtt = ratio rtt MW 0.3m m(A) 3m 5m 7m 10m(C) max min max min max min max min max min 0 = ratio rtt = ratio rtt = ratio rtt =ratio rtt = ratio rtt MW 10m m(A) 3m 5m 7m 10m(B) max min max min max min max min max min 0 = ratio rtt = ratio rtt = ratio rtt =ratio rtt = ratio rtt
7 m(C) 3m 5m 7m 10m(B) max min max min max min max min max min 0 = ratio rtt = ratio rtt = ratio rtt =ratio rtt = ratio rtt
8 AP AP AP 0.3m 3m 5m 7m 10m % AP 24 MW MW 24 7., AP AP AP [1] IDC os;jsessionid=84526caaee8b1379b4224f60e822dedf [2] pdf [3], : Android,, IEICE Technical Repor SS , [4] : Firefox OS Android, 76, 4W [5] Murmuria, R., Medsger, Jeffrey, Stavrou, A., Voas, Mobile Application and Device Power Usage Measurements, Software Security and Reliability (SERE), 2012 IEEE Sixth International Conference, pp [6] Roy Friedman, Alex Kogan, On Power and Throughput Tradeoffs of WiFi and Bluetooth in Smartphones, INFOCOM, 2011 Proceedings IEEE, pp [7] Kaori Miki, Saneyasu Yamaguchi, and Masato Oguchi Kernel Monitor of Transport Layer Developed for Android Working on Mobile Phone Terminals, Proceedings of The Tenth International Conference on Networks (ICN), pp [8] Hiromi Hirai, Saneyasu Yamaguchi, and Masato Oguchi: A Proposal on Cooperative Transmission Control Middleware on a Smartphone in a WLAN Environment, In Proc. the 9th IEEE International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob2013), pp , October [9] : LAN-AP TCP ACK DEIM2015, C2-2,2015 3
,., ping - RTT,., [2],RTT TCP [3] [4] Android.Android,.,,. LAN ACK. [5].. 3., 1.,. 3 AI.,,Amazon, (NN),, 1..NN,, (RNN) RNN
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