Even though, there has been an increasing usage and access to Information Communication Technology (ICT) worldwide during the last few decades, the digital divide between developed and developing regions still remains (ITU, 2009). In developed countries a well established ICT infrastructure exists in industrial, business, governmental and home environments. The infrastructure is available in bi...

In this paper, we consider the revenue maximization problem in auctions for dynamic spectrum access. We assume a frequency division method of spectrum sharing with a primary spectrum owner that can divide the available spectrum into sub-bands and sell them to secondary users. We assume that a secondary user’s utility function is linear in the rate it can achieve by using the spectrum. We presen...

In this paper, we present a low complexity bit-parallel Montgomery multiplier for GF(2m) generated with a special class of irreducible pentanomials xm + xm−1 + xk + x + 1. Based on a combination of generalized polynomial basis (GPB) squarer and a newly proposed square-based divide and conquer approach, we can partition field multiplications into a composition of sub-polynomial multiplications a...

This paper presents a new DCOP algorithm called DeQED (Decomposition with Quadratic Encoding to Decentralize). DeQED is based on the Divide-and-Coordinate (DaC) framework, where the agents repeat solving their updated local sub-problems (the divide stage) and exchanging coordination information that causes to update their local sub-problems (the coordinate stage). Unlike other DaC-based DCOP al...

The portfolio is a perfect combination of stock or assets, which an investor buys them. The objective of the portfolio is to divide the investment risk among several shares. Using non-parametric DEA and DEA-R methods can be of great significance in estimating portfolio. In the present paper, the efficient portfolio is estimated by using non-radial DEA and DEA-R models. By proposing non-radial m...

The disparity in access to information and communications technologies (ICTs), often referred to as “digital divide”, has received significant attention among policy makers and academics around the world. In particular, the need for continuous monitoring of the ICT adoption rates by communities in different economies has been one of the top priorities in various forums. In order to address this...