the issue of this paper is the relationships between inflation rate , unemployment rate and production, one of the main discussions in macroeconomic models. this 'paper is an effort 'to determine the relationship between the above- mentioned phenomenon in the short-and in the long 11m as well as to calculate the natural rate of unemployed in iran. for this purpose, the theoretical mod...

A low complexity dynamic subcarrier and power allocation methodology for downlink communication in an OFDM-based multiuser environment is developed. The problem of maximizing overall capacity with constraints on total power consumption, bit error rate and data rate proportionality among users requiring different QOS specifications is formulated. Assuming perfect knowledge of the instantaneo...