In the first step,subcarriers were assigned with the average data rate constraint,and in the second,power and bits were distributed to the subcarriers which was assigned in the first step based on the waterfilling theory.

In the algorithm we consider the following two steps approach: in the first step, subcarriers are assigned with the average data rate constraint, in the second, power and bits are distributed to the subcarriers which is assigned in the first step based on the waterfilling theory.

A novel margin adaptive resource allocation algorithm was proposed for multiuser OFDM systems to reduce the total transmit power.In the algorithm the following two steps were considered.In the first step,subcarriers were assigned with the average data rate constraint,and in the second,power and bits were distributed to the subcarriers which was assigned in the first step based on the waterfilling theory.Computer simulations show that the proposed algorithm has low calculating complex and the total transmit...

A novel margin adaptive resource allocation algorithm was proposed for multiuser OFDM systems to reduce the total transmit power.In the algorithm the following two steps were considered.In the first step,subcarriers were assigned with the average data rate constraint,and in the second,power and bits were distributed to the subcarriers which was assigned in the first step based on the waterfilling theory.Computer simulations show that the proposed algorithm has low calculating complex and the total transmit power is smaller than the existing algorithm.

>=It is proposed a novel margin adaptive resource allocation algorithm for multiuser OFDM systems. In the algorithm we consider the following two steps approach: in the first step, subcarriers are assigned with the average data rate constraint, in the second, power and bits are distributed to the subcarriers which is assigned in the first step based on the waterfilling theory. By computer simulations, we verify that the proposed algorithm have low calculating complex and the total transmit power is smaller...

>=It is proposed a novel margin adaptive resource allocation algorithm for multiuser OFDM systems. In the algorithm we consider the following two steps approach: in the first step, subcarriers are assigned with the average data rate constraint, in the second, power and bits are distributed to the subcarriers which is assigned in the first step based on the waterfilling theory. By computer simulations, we verify that the proposed algorithm have low calculating complex and the total transmit power is smaller than the existing algorithm.