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. The beamformers should additionally pres...

The experimental approach is based upon exploiting both long-range observations of clutter and shortrange, or direct-path observations (seabed scattering and reflection) of the features that give rise to the clutter. Direct path observations offer two significant advantages: a) the uncertainties associated with propagation (through a generally sparsely sampled ocean) are minimized, and b) the m...

A broadband source of polarization entangled photons based on type-II spontaneous parametric down conversion from a chirped PPKTP crystal is presented. With numerical simulation and experimental evaluation, we report a source of broadband polarization entangled states with a bandwidth of approximately 125 nm for use in quantum interferometry. The technique has the potential to become a basis fo...

This paper describes the development of two rural broadband infrastructure initiatives. This development is a bottom-up development of broadband infrastructure. Individuals, businesses and public sector have joined forces and have taken an initiative to develop and operate local broadband infrastructure. The initiatives faces a different set of challenges depending on the local context. The two...

Broadband Railway Digital Network (BRDN) integrating the emerging broadband wireless access technologies will satisfy the requirements of next generation Railway Information System (RIS). This paper proposes an overall implementation scheme for BRDN with discussion on its main components, such as the intranet on train, train-ground internetworking and infrastructure of BRDN. The paper aims at e...

Millions of Canadians residing in Canada's northern, isolated, rural, and remote communities do not have broadband Internet access. This situation has led to a national “broadband divide.” That is, the deployment of wireline broadband is very limited in Canada's northern, isolated, rural, and remote areas because of the significant expense of installation and maintenance of the wired infrastruc...

This special issue of the Journal of High Speed Networks deals with an issue of significant current interest – Broadband Wireless. A very significant research effort is underway, both in the academia and industry, to increase the bandwidth available over wireless networks. Many of the application scenarios that will drive the ‘wireless Internet’ are predicated upon the availability of higher ba...

This research is pertinent to recent 21st cybersecurity challenges and the FCC broadband plans to gather data-driven information on how the public safety community can best utilize broadband technologies towards preparation, response, and recovery from major disasters, pandemics, acts of terrorism, and cyber attack. This includes challenges of broadband and cyber security for the FCC, Cyber Coo...