This paper concerns two-hop communication over relay-assisted Block fading channel. It is assumed there is not a direct link between the transmitter and the affiliated destination and the communication occurs in two hops through the use of a relay, where the amplify and forward (AF) strategy is employed at this node. In this case, in a Rayleigh block fading channel, the optimal weight function ...

0

the structure of family organization is recognized upon members’ relationship and their rights and duties. the distinction of paternal, maternal, child and couple roles cause distinction in rights and duties. therefore the rights and duties of roles are bilateral but deferent. two characteristics explain the power division in family: biological abilities and expenditure. man in his marital role...

this article intends, by examination of historical background, hypotheses, frameworks and the characteristics of globalization and anti globalization theories as well as analyzing the culture and power theories at national and international levels, to consider and evaluate the issue, by representing a brighter perspective of globalization and power on one hand, and different kinds of power and ...

abstract: implementing a combined cooling, heating and power system(cchp) to cool, heat and produce electricity is growing rapidly due to its efficiency and low emissions. in this paper, using economic analysis, the size and operation detail of the required gas engine and the specific electricity, cooling and heating load curves for a one year operating period has been determined. the proposed ...

a new output structure for class e power amplifier (pa) is proposed in this paper. a series lc resonator circuit, tuned near the second harmonic of the operating frequency is added to the output circuit. this resonator causes low impedance at the second harmonic. the output circuit is designed to shape the switch voltage of the class e amplifier and lower the voltage stress of the transistor. t...

the main goal of this article, this review is that due to the decline of the united states america's soft power after the invasion of iraq in march 2003 - due to the power of unilateral hardware-based - iran can and should according to the religious, historical, and cultural commonalities with its neighboring, strengthen software sources of power than the new iraq to create a strategic and...