：该文研究OFDM 系统在总功率和误比特率限定下最大化传输速率的问题，并且考虑实际系统中整数比特的限制， 提出基于灌水法则的两种比特分配算法——改进贪婪算法和对分灌水线搜索法-The maximization of data rate under the constraint of total transmit power and bit error rate is a considerable issue in OFDM system. Recognizing that the num

贪婪算法，通过迭代，可应用于子载波分配时。-Greedy algorithm, iterative, can be applied to subcarrier allocation.

利用贪婪算法对ofdm系统进行子载波和功率分配，在误码率一定的情况下，是发射端的功率最低-Greedy algorithm using ofdm system subcarrier and power allocation, bit error rate in certain circumstances, is the minimum transmitter power