Within the EU FP6 Integrated Project WINNER, adaptive transmission is investigated as a key technology for boosting the spectral efficiency of a new radio interface for 4G systems. Adaptive allocation of timefrequency bins in an OFDM-based system offers a significant potential, but also poses challenges. Within work package 2 of WINNER, we study critical issues such as the feasibility of adapti...

This article is describing the WINNER+ approach to performance evaluation of 3GPP LTE-Advanced proposal as IMT-Advanced technology candidate. Official registered WINNER+ Independent Evaluation Group evaluated this proposal against ITU-R requirements. First part of the article gives an overview on ITU-R evaluation process, criteria and scenarios. Second part is focused on the working method of t...

We consider the problem of control in elections where an election chair seeks to either make a designated candidate win, or prevent her from winning, via actions such as adding, deleting, or partitioning either candidates or voters. These scenarios have been studied for many voting systems and the related control problems have been classified in terms of their complexity. However, for one of th...

A Comparison of Multiple-Unit All-Pay and Winner-Pay Auctions under Incomplete Information by Yasar Barut, Dan Kovenock, and Charles Noussair This paper examines the properties of independent-private-value all-pay and winner-pay auctions when there are multiple units sold. We study bidding behavior, efficiency and revenue in a set of nine experimental sessions, each with six bidders. All-pay au...

The Condorcet winner in an election is the candidate who would be able to defeat all other candidates in a series of pairwise elections. The Condorcet efficiency of a voting procedure is the conditional probability that it will elect the Condorcet winner, given that a Condorcet winner exists. The study considers the Condorcet efficiency of weighted scoring rules (WSR’s) on three candidates for ...

We consider the scenario of a parliament that is going to vote on a specific important issue. The voters are grouped in parties, and all voters of a party vote in the same way. The expected winner decision is known, because parties declare their intentions to vote, but before the actual vote takes place some voters may leave the leading party to join other parties. We investigate the computatio...

We study the computational complexity of computing a manipulation of a two stage voting rule. An example of a two stage voting rule is Black’s procedure. The first stage of Black’s procedure selects the Condorcet winner if they exist, otherwise the second stage selects the Borda winner. In general, we argue that there is no connection between the computational complexity of manipulating the two...

The outcome of contests over resources such as territories, food, and mates is determined by resource holding power (RHP) and resource value (Parker 1974; Huntingford & Turner 1987). In addition, previous fighting experience strongly influences the odds of winning. Winner and loser effects denote the higher probability of a winner to win a subsequent encounter and the higher probability of a lo...

in this article, the effect of cells' radius on the behavior of wavelength switching optical filter andthe effect of the radius of the optical filters' key characteristics such as wavelength resonance onan optical filter based on photonic crystals, have been investigated. currently, the most commonapplied mechanism for designing optical filter based on photonic crystals is using twome...