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[IETF] [BitTorrent] Low Extra Delay Background Transport (LEDBAT)
Reference[1] Low Extra Delay Background Transport (LEDBAT)http://tools.ietf.org/html/rfc6817What is LEDBAT?LEDBAT, Developed by BitTorrent and approved byIETF in Dec.2012, is a new applicati原创 2013-09-11 22:08:13 · 1235 阅读 · 0 评论 -
[IETF] Congestion Exposure
Reference[1]Congestion Exposure (ConEx) Concepts and Abstract Mechanismhttp://tools.ietf.org/html/draft-ietf-conex-abstract-mech-07[2]TCP modifications for Congestion Exposurehttp://tools.原创 2013-09-11 19:01:30 · 856 阅读 · 0 评论 -
LTE note 2012.12.27
来自中国移动研究院无线所无线研究员面经http://www.losersaver.com/pay.do?id=ff8080813b04a1c3013b1ed2920c002a1. why LTE adopts OFDM-MIMO? Why does CDMA not use it?（背景：MIMO的概念早在1908年由马可尼提出，很简单，利用多根收发天线提高信道容量，而不用增大天线原创 2012-12-27 20:35:18 · 614 阅读 · 0 评论 -
[summ] 基于MPTCP的无线通信节能方案/MPTCP-based Energy Saving Techs in Wireless Networks
1. Saving Mobile Device Energy with Multipath TCP [http://eggert.org/papers/2011-mobiarch-mptcp-saving-energy.pdf]contribution: proposes a scheduler to switch between 3G and Wi-Fi, in order to sav原创 2012-08-27 17:15:00 · 1154 阅读 · 0 评论 -
[summ] IETF文档之MPTCP应用：MPTCP Application Interface Considerations (draft-ietf-mptcp-api-05)_Apr.2012
背景：早在2007年，IETF推出Streaming Control Transmission Protocol (SCTP)， Stewart, R., Stream Control Transmission Protocol, RFC 4960, September 2007. SCTP主要特色是提供 多路径通信(concurrent multipath transfer). 然而SC原创 2012-08-22 00:06:53 · 1462 阅读 · 0 评论 -
[summ]Coupled Congestion Control for Multipath Transport Protocols [draft-ietf-mptcp-congestion-07]
Coupled Congestion Control for Multipath Transport Protocols [draft-ietf-mptcp-congestion-07]link:http://tools.ietf.org/html/draft-ietf-mptcp-congestion-07重要文献：[1] Wischik, D., Raiciu, C., Gre原创 2012-08-27 17:11:44 · 1285 阅读 · 0 评论 -
[summ]Energy saving-Switching 3G_Wi-Fi_GPS
J. Ryoo, H. Kim, and S. R. Das, “Geo-fencing: Geographical-fencing based energy-aware proactive framework for mobile devices,” in 2012 IEEE 20th International Workshop on Quality of Service (IWQoS), 2原创 2012-08-14 18:22:27 · 562 阅读 · 0 评论 -
[summ]network traffic measurement and analysis-challenges and solutions
1.A. Marold, P. Lieven, and B. Scheuermann, “Probabilistic parallel measurement of network traffic at multiple locations,” IEEE Network, vol. 26, no. 1, pp. 6 –12, Feb. 2012.challenge: when merging原创 2012-08-20 08:04:36 · 831 阅读 · 0 评论 -
neural network model
utilities:1. neural control in dynamic routingM. Baglietto, T. Parisini, R. Zoppoli, “Distributed-Information Neural Control: the Case of Dynamic Routing in Traffic Networks”, IEEE Transactions on原创 2012-08-14 17:23:46 · 553 阅读 · 0 评论 -
IEEE 802.11 saturated and non-saturated
saturated: stations always have packets to transmitnon-saturated: stations transmit packets with probability原创 2012-06-29 16:07:45 · 593 阅读 · 0 评论 -
be careful of the usage of physical data rate
IEEE 802.11a: OFDM based, supports 6, 9, 12, 18, 24, 36, 48, and 54Mbps, where 6, 12, 24Mbps are mandatoryIEEE 802.11b: DSSS based, supports 1, 2, 5.5, 11MbpsIEEE 802.11g: ODFM based, supports 80原创 2012-06-28 16:39:41 · 522 阅读 · 0 评论 -
windows 7下安装sipp3.2
不同与以往的旧版本，最新版的sipp3.2(2012年7月下载)在windows 7下的安装过程变得非常简单：1. 下载并安装Cygwin. http://www.cygwin.com/2. 安装WinPcap的windows客户端：http://www.winpcap.org/install/default.htm。下载winpcap的Developer's Pack：http://ww原创 2012-07-03 23:58:24 · 4257 阅读 · 0 评论 -
RTS/CTS机制能否有效解决 Wi-Fi 网络中的 hidden ndoe problem
背景Hidden Node Problem发生在 MANET 和 WLAN-infrastructure 网络中。如果节点A和节点B, 不再对方传输功率范围, 当A和B同时跟AP(或节点C)发起通信，就引起collision. hidden节点数量越多，collision的概率就越大，吞吐量越低。解决方案增加节点发送功率，扩大传输范围在开始数据流通信前，引入RTS/CTS ha原创 2011-12-08 23:40:56 · 4693 阅读 · 0 评论 -
Network Visualization Function_White Paper [ETSI]
http://portal.etsi.org/nfv/nfv_white_paper.pdf原创 2014-06-05 17:23:05 · 1390 阅读 · 0 评论