We expose an USB vulnerability in some vendors’ customization of the android system, where the serial AT commands processed by the cellular modem are extended to allow other functionalities. We target that vulnerability for the specific vendor system and present a proof of concept of the attack in a realistic scenario environment. For this we use an apparently inoffensive smartphone charging st...

In this article, we focus on the challenges and opportunities for broadband access deployment in India. We present an overview of the broadband scenario in India and the existing network architectures. We then review next generation technologies for broadband access including Metro Ethernet. We demonstrate how an optimal access architecture based on metro Ethernet can be developed for cost effe...

This paper presents a study conducted in the Region of Western Greece, in order to propose an overall planning for the development of broadband infrastructure in the Region of Western Greece. The current broadband status in the region is being described, while the results of a survey on broadband usage and demand are being presented. The paper proposes some Recommendations that should be adopte...

The paper provides empirical evidence for the causal impact of broadband Internet on firms’ labour productivity and realised process and product innovations. The analysis refers to the early phase of DSL expansion in Germany from 2001 to 2003, when roughly 60 percent of the German firms already used broadband Internet. Identification relies on instrumental variable estimation taking advantage o...

Satellite networks have signi cant advantages over terrestrial networks. Satellites provide unique advantages such as remote coverage with rapid deployment, distance insensitivity, bandwidthon-demand, immunity to terrestrial disasters, o ering broadband links. Broadband satellite networks will play an important role in the rapidly evolving information infrastructure. However, there are several ...

High-speed internet access is a becoming a greater necessity for people to participate in today’s economy. However, even though broadband networks have been greatly expanded, there are still areas that do not have access. This study examines the extent to which Winona County, Minnesota is connected to the internet via broadband connection and the opportunities for expanding broadband penetratio...

Fixed broadband beamformers for speech applications using smallsized microphone arrays are known to be highly sensitive to errors in the microphone array characteristics. This paper describes two procedures for designing broadband beamformers with an arbitrary spatial directivity pattern, which are robust against gain and phase errors. The first design procedure optimises the mean performance o...

This paper describes the deployment of residential broadband networks by relating two parallel but contrasting stories. Story 1 considers network providers’ search for a killer application to drive demand for broadband networks, while Story 2 suggests that consumers have already found a killer application in e-mail and basic connectivity. It appears that residential broadband networks are curre...

Broadband wireless channels, where high data rates are transmitted, are extremely dispersive in nature. A fundamental challenge in the design of equalizers for the broadband case lies in reducing complexity. Broadband finite impulse response (FIR) beamformers employ a space-time antenna array which reduces the multipath delay spread to narrowband levels. Adaptive frequency-domain equalizers tha...

Although attention has been given to how broadband access is related to economic development in rural areas, scant consideration has been given to how it may be associated with voluntary participation. This issue is important in that numerous studies have shown how much more vital community participation is in rural areas as compared to suburban and urban places. Drawing on three diverse data s...