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为兼顾用户间公平性的同时最大化总的端到端速率,并针对Lee的分配算法计算复杂度高的缺点,提出一种新的分级资源分配算法。该算法首先根据有限的信息基于纳什议价解进行粗分配(CA);其次根据完整的子载波增益信息基于等功率分配的方法进行细分配(FA)。仿真结果表明,提出的算法不仅获得与基于最大速率准则的算法相近的总的端到端速率,而且保证了用户间的公平性;同时,该算法能以更低的复杂度获得与Lee的算法相近的端到端速率。
In order to balance the fairness between users and maximize the total end-to-end rate, a new hierarchical resource allocation algorithm is proposed in view of the disadvantage of Lee’s high computational complexity. The algorithm first performs coarse assignment (CA) based on Nash bargaining solution based on limited information. Second, based on complete subcarrier gain information, subdivision (FA) is performed based on equal power allocation. The simulation results show that the proposed algorithm not only obtains the same end-to-end rate as the algorithm based on the maximum rate criterion, but also ensures fairness among users. At the same time, the proposed algorithm can obtain the algorithm with Lee’s algorithm with lower complexity Similar end-to-end rate.