At last, the bit assignment result is compared with the best algorithm. The result shows that adaptive modulation algorithm can improve the transmission chi hair straighteners performance of the system markedly. the bit assignment result of the proved greedy algorithm and the best algorithm are very close.Finally, a new algorithm base on the cheap ralph lauren polo shirts adaptive non-saturated is proposed, the theories about the algorithm are described and analyzed in detail. And then, the algorithm is used in the OFDM communication system. The new discount wedding dresses algorithm is no longer assignment bits on the limited bandwidth 3dB, but lace wedding dresses assignment bits by the time. So , the bandwidth resources can be used very well. The custom made prom dresses implement of the algorithm is very simple and the modulation format kinds used is less than the old algorithm. So the new algorithm is very fit for the OFDM multimode fiber communication system. And then , the new algorithm overcome the disadvantage in other algorithm that BER on some of the sub-carriers are extremely worse. The simulation result shows that the BER of every sub-carrier can be improved 10e4 times through sacrificing less bandwidth by using the new algorithm. And it can insure every sub-carrier can reach the target BER.
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