Cognitive Radio promises to be a solution for the spectrum underutilization problems. However, security issues pertaining to Cognitive Radio technology are still an understudied topic. One of the prevailing such issues are intelligent radio frequency jamming attacks, where adversaries are able to exploit on-the-fly reconfigurability potentials and learning mechanisms of Cognitive Radios in orde...

Wireless power charging enables portable devices to be permanently unplugged. Due to its low transmission power and low transmission efficiency, it requires much longer time slot to charge users compared with that for data transmission in wireless communication networks. Besides, each user’s demand urgency needs to be taken into consideration for power allocation. Therefore, new algorithms are ...

the aim of the present study was to investigate the effect of an official basketball game and its result on serum testosterone and cortisol responses as well as a possible difference in these hormones between fixed and reserved players. for this purpose, two teams were purposefully selected from semi-final games of tehran first clubs. the blood samples of 22 female players (mean age: 20 years, ...

It is well documented in the literature that inadequacy of the analytical models has been a primary reason for the low economic stability of deregulated power industry. Some of the modeling inadequacies can be attributed to the difficulties of analyzing nonzero sum multiplayer stochastic games that are inherent in deregulated power market operations. This paper presents a two-tier game theoreti...

Volunteer computing is a form of distributed computing where projects attempt to accomplish some goal, using volunteered computational resources instead of paying for the resources [1]. Volunteer computing projects are being used for a wide range of computationally intensive scientific and mathematical goals, ranging from searching for evidence of extraterrestrial intelligence to searching for ...

The performance of any cooperative communication system depends largely on the selection of a proper partner. Another important factor to consider is an efficient allocation of resource like power by the source node to help it in forwarding information to the destination. In this paper, we look at the concepts of partner selection and resource (power) allocation for a distributed communication ...

The Intergroup Prisoner’s Dilemma with Intragroup Power Dynamics (IPD^2) is a new game paradigm for studying human behavior in conflict situations. IPD^2 adds the concept of intragroup power to an intergroup version of the standard Repeated Prisoner’s Dilemma game. We conducted a laboratory study in which individual human participants played the game against computer strategies of various compl...

In this paper, we analyze the problem of power control in a multiuser MIMO network, where the optimal linear precoder is employed in each user to achieve maximum pointto-point information rate. We design a distributed power control algorithm based on the concept of game theory and contractive functions that has a couple of advantages over the previous designs (e.g. more uniqueness probability o...

In this paper, the problem of power control for cognitive systems is studied via game theory. The objective is to maximize the sum utility of secondary users (SUs) subject to the primary users (PUs) interference constraints, the transmission power constraints of SUs, and the signal-to-interference-plus-noise ratio (SINR) constraint of each SU. In our earlier work, the problem was formulated as ...