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While the bandwidth and latency improvement of both WiFi and cellular data networks in the past decade are plenty evident, the extent of signal strength fluctuation and network disruptions (unexpected switching or disconnections) experienced by mobile users in today's network deployment remains less clear. This paper makes three contributions. First, we conduct the first extensive measurement of network...
Recent advances in high speed rails (HSRs), coupled with user demands for communication on the move, are propelling the need for acceptable quality of communication services in high speed mobility scenarios. This calls for an evaluation of how well popular voice/video call applications, such as Skype, can perform in such scenarios. This paper presents the first comprehensive measurement study on Skype...
The design of loop filter is very important in GNSS receivers. According to design methodology and filter coefficient calculation method, the performance of four filter design methods are analyzed and discussed for frequency response, loop bandwidth and noise equivalent bandwidth. The range of BNT in different methods and deviation of ideal noise equivalent bandwidth are investigated by simulation...
As the key infrastructure of cloud computing, data center network provides routing and transport services for cloud applications. To ensure reliable data delivery, TCP has been used in data centers as the de facto transport layer protocol. However, recently researchers found that when a client has a barrier-synchronized requirement and requests data from many servers, the good put may experience collapse...
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