Rational Sub-grouping 合理的分组
sub-carries grouping 子载波分组
Sub-carrier grouping coded modulation 子载波分组编码调制
以上来源于: WordNet
Grouping is indicated by parentheses: any sub-expression contained in parentheses is treated as if it were atomic for the purpose of further grouping or repetition.
由括号表示分组：括号中包含的任何子表达式都被看作是用于以后分组或循环的原子。
Define and apply the principle of rational sub grouping.
定义并应用合理分组的原则。
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.
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。
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