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在研究MC - CD MA系统和自适应比特分配技术的基础上，提出了一种适合MC - CD MA系统的自适应比特和功率分配算法。
An adaptive bit and power allocation algorithm for MC-CDMA system is proposed in this paper based on the study of MC-CDMA system and adaptive allocation technology.
该方法基于率失真曲线的精确理论模型，对小波分解后的不同子带提供最优的动态比特分配从而实现了小波系数的自适应量化编码，最后还实现了码率控制。
It provides optimal dynamic bit allocation for sub-bands of DWT and realizes adaptive quantization for wavelet coefficients. At last, it provides exact rate control for the coder.
算法使用分组代替迭代计算，摒弃复杂的子载波交换操作，以极低的复杂度实现了等功率下的自适应子载波分配和比特加载。
The algorithm, which involves adaptive sub-carrier allocation and bit loading with equally power allocation, adopts a grouping technique rather than the sub-carrier swapping.
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