This paper proposes a time and frequency synchronization technique for a Q transmit and L
receive (Q/spl times/L), MIMO OFDM system. The synchronization is achieved using training …

Cognitive radio techniques are being applied to many different communications systems.
They hold promise for increasing utilization of radio frequencies that are underutilized today, …

Malaria presents a diagnostic challenge to laboratories in most countries. Endemic malaria,
population movements, and travelers all contribute to presenting the laboratory with …

In many cases, implementation approaches (composed of one or more strategies) may need
to change over time to work optimally. We use a literature review to inform a mechanistic …

In international ‘location tournaments’, governments compete for foreign investment with tax
and other short-run incentives. Such tournaments can be won if agglomeration economies …

This article describes recent advances in cognitive communications. We combine the concepts
of signal processing, communications, pattern classification, and machine learning to …

New evidence is presented on environmental innovation and diffusion over the 1970s and
1980s. At a global level, a substantial amount of innovations occurred. In the United States, …

In this paper we analyze data on nearly 1,000 developing-country bonds issued in the years
1991-96 the recent episode of heavy reliance on bonded debt. We analyze both the issue …

What accounts for the worldwide advance of financial reforms in the last quarter century?
Using a new index of financial liberalization, we find that influential events shook the policy …

We examine the capital flows–domestic investment relationship for 60 developing countries
from 1979 to 1999. In the 1990s, even as liberalization attracted new flows, foreign capital …