CAJ | 학술논문

为进一步减少功率浪费，提高系统吞吐量，结合 E-UTRA 系统中自适应调制编码（ AMC ）技术，提出了一种联合AMC的降阶迭代功率分配算法。使用传统注水算法对用户进行首次功率分配，然后对超过支持最高调制编码方式所需功率的用户，削减分配功率到支持最高调制编码方式所需的功率，并将多出来的功率通过降阶迭代方式分配给其他用户，以使尽可能多的用户达到更高的调制编码方式。仿真结果表明，该算法能在较少迭代次数的情况下，取得较高的系统吞吐量。
위진일보감소공솔낭비，제고계통탄토량，결합 E-UTRA 계통중자괄응조제편마（ AMC ）기술，제출료일충연합AMC적강계질대공솔분배산법。사용전통주수산법대용호진행수차공솔분배，연후대초과지지최고조제편마방식소수공솔적용호，삭감분배공솔도지지최고조제편마방식소수적공솔，병장다출래적공솔통과강계질대방식분배급기타용호，이사진가능다적용호체도경고적조제편마방식。방진결과표명，해산법능재교소질대차수적정황하，취득교고적계통탄토량。
In order to reduce the power dissipation,a reduced iterative power allocation algorithm with AMC is proposed combining with adaptive modulation and coding ( AMC) in E-UTRA to increase power efficiency and system throughput. First of all,the first power allocation is implemented by using water-filling algorithm,and then the allocated power is turncated to the power required by the highest AMC mode if it surpasses the power required by the highest AMC table for certain AMC set. The all truncated power is reallocated to raise the AMC rank. The simulation results show that the proposed algorithm can achieve higher system throughput with less iteration.