CAJ | 학술논문

该文针对以OFDMA(Orthogonal Frequency Division Multiple Access)为多址接入方式的多无线电系统中用户比例公平性和系统效率问题进行了研究，提出一种联合资源分配算法，不仅保证了用户比例公平性下系统的吞吐量，还充分考虑了分配的带宽是子信道带宽整倍数的特点，对分配给每个终端的带宽进行子信道整数倍调整。最后通过仿真对比，从系统吞吐量和公平性两方面给出了算法的性能。
해문침대이OFDMA(Orthogonal Frequency Division Multiple Access)위다지접입방식적다무선전계통중용호비례공평성화계통효솔문제진행료연구，제출일충연합자원분배산법，불부보증료용호비례공평성하계통적탄토량，환충분고필료분배적대관시자신도대관정배수적특점，대분배급매개종단적대관진행자신도정수배조정。최후통과방진대비，종계통탄토량화공평성량방면급출료산법적성능。
A joint resource allocation algorithm is proposed to solve the problem of the proportional fairness and the system efficiency in multi-radio systems based on OFDMA (Orthogonal Frequency Division Multiple Access). The algorithm optimizes the system throughput under the fairness constraint, and considers that the allocated bandwidth should be integer times of the subchannel bandwidth. The bandwidth allocated to each terminal is adjusted according to this consideration. The performance of the proposed algorithmis evaluated by simulations in terms of the system throughput and the fairness.