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Generalized stable marriage-assisted power and sub-band allocation for energy efficient OFDMA-based uplink

机译:基于节能OFDMA的上行链路的广义稳定婚姻辅助功率和子带分配

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In this paper, we address a problem of joint power and sub-band allocation to maximize the energy efficiency at mobile terminals (MTs) for an OFDMA-based uplink data transmission. Due to difficulty of the combinatorial programming problem, we solve the problem by two steps. With the aid of the generalized stable marriage (GSM) method, we firstly obtain the optimal number of sub-bands as well as the corresponding sub-band assignment for each MT based on their required transmission rates and the channel state informations (CSIs). Then, a greedy algorithm is proposed to achieve an optimal power allocation for each MT based on the predecided sub-band assignments. Simulation results demonstrate that the energy efficiency of MTs for an OFDMA-based uplink data transmission can be greatly reduced by the proposed algorithm, especially for the cases with a smaller number of sub-bands.
机译:在本文中,我们解决了联合功率和子带分配的问题,以最大程度地提高基于OFDMA的上行链路数据传输的移动终端(MT)的能效。由于组合编程问题的难度,我们分两步解决该问题。借助于广义稳定联结(GSM)方法,我们首先根据每个MT所需的传输速率和信道状态信息(CSI)获得最佳子带数量以及相应的子带分配。然后,提出了一种贪婪算法,以基于预定的子带分配为每个MT实现最佳功率分配。仿真结果表明,所提出的算法可以大大降低MT的基于OFDMA的上行数据传输的能量效率,尤其是在子带数量较少的情况下。

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