Abstract
For multi-access mode of 4Gwireless communication system, OFDM is the most appropriate multiple access project. MC-CDMA and OFDM-TDMA are the modulation modes which are most likely to be applied. The paper makes a tentative study on dynamic bandwidth allocation, power regulation and byte combined with allocation bit loading algorithm of VSF-OFCDM wireless communication system. According to the characteristics of transient property and wireless transmission service of wireless channel, subcarriers, power and the number of information bits are optimized and allocated for each business during the period of information transmitting symbols, which are the focus of the subject. The paper proposes subcarrier, byte and power combined with distribution bit loading algorithm based on channel detection and facing business. The paper establishes modularized, parameterized and interactive dynamic simulation model of VSF-OFCDM wireless communication system which simulates integrated service communication including data, multimedia and video conference. And the model made simulation and performance analysis on different wireless link status and different business portfolio. The simulation results show that the algorithm not only is reliable and stable, but also has good performance in VSF-OFCDM wireless communication system with high speed and integrated service
Published Version
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