In a packet-switched integrated-services network, the service provider can charge users a state-dependent price, which depends on the extent to which the network is congested. Alternatively, one can also charge users a long-term average price, which is set based on expected demand and capacity availability derived from prior experience at that time-of-day, but independent of instantaneous netwo...

The problems facing the public safety wireless communication systems in the US could be significantly reduced or eliminated through the deployment of a single nationwide network that serves all public safety personnel. Two major efforts towards such a nationwide network are the Integrated Wireless Network (IWN), a program only for federal emergency responders, and an effort by the FCC to create...

This paper presents the most accurate empirical study to date to characterize and quantify the amount of content of various types that is transferred worldwide using BitTorrent, the dominant peer-to-peer (P2P) file sharing application. Using data we collected from the largest public BitTorrent tracker over 106 days between August 2010 and February 2011 and a new methodology, we find that for so...

Wireless broadband communication has the potential to revolutionize emergency response. While public safety wireless systems and commercial wireless systems have historically employed incompatible technologies, recent developments make it likely that both will adopt LTE technology, thereby creating a unique opportunity to supplement dedicated public safety infrastructure with roaming access to ...

Recent empirical studies have shown that self-similar traffic models may be more appropriate than the models typically in use for network traffic. The causes of this apparent self-similar behavior must be identified to determine how widely applicable these models are, and how network designers should respond. While some have argued that the cause is inherent self similarity of application traff...

In a packet-switched integrated-services network, the service provider can charge users a state-dependent price, which depends on the extent to which the network is congested. Alternatively, one can also charge users a long-term average price, which is set based on expected demand and capacity availability derived from prior experience at that time-of-day, but independent of instantaneous netwo...

In order to detect an extremely low amount of human coagulation factor IX (FIX), poly(ethylene glycol) (PEG)/aptamer co-immobilized surface was constructed using original PEG-polyamine surface modification agents on surface plasmon resonance (SPR) sensor chip. Initially, a gold (Au) sensor chip of SPR was modified using poly(ethylene glycol)-b-poly[2-(N,N-dimethylamino)ethyl methacrylate] (PEG-...