| 基于NOMA的D2D通信联合子信道与功率分配算法 |
| Jiont subchannel and power allocation algorithm in D2D communication based NOMA |
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| DOI： |
| 中文关键词: D2D；信道分配；KM算法；KKT条件；能量效率 |
| 英文关键词:Device to Device(D2D);channel allocation;KM algorithm;KKT condition;energy efficiency |
| 基金项目:国家自然科学基金（61571234,61631020）、江苏省自然科学基金（BK20140894）和江苏省高等学校自然科学研究(17KJA510003) 资助项目 |
| 作者 | 单位 | | 陶静 | 南京邮电大学 通信与信息工程学院，江苏南京210003 | | 朱琦 | 南京邮电大学 通信与信息工程学院，江苏南京210003 |
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| 中文摘要: |
| 文中考虑应用NOMA(Non Orthogonal Multiple Access)技术的D2D(Device to Device)通信系统，针对D2D通信用户与蜂窝用户之间存在的同道干扰以及D2D组内基于NOMA准则的功率分配问题，构建以D2D用户总能量效率最大为优化目标的优化问题，采用信道分配和功率分配分步进行的方式进行处理。该算法首先采用KM (Kuhn Munkres)算法为每个D2D组分配信道，然后运用KKT(Karush Kuhn Tucker)最优约束条件推导得到各个D2D组内功率分配方案。仿真结果表明，在保证蜂窝用户的服务质量时，该算法下的D2D用户总能量效率优于传统的正交多址（Orthogonal Multiple Access,OMA）技术。 |
| 英文摘要: |
| A Device to Device (D2D) communication system using non orthogonal multiple access (NOMA) technique is considered.Aimed at the co channel interference between the D2D users and the cellular users,and the power allocation problem based on the NOMA principle in the D2D groups,an optimization problem of maximum the total energy efficiency of D2D users is constructed and handled by two steps.The algorithm firstly uses Kuhn Munkres (KM) algorithm to allocate channel for each D2D groups,then obtains the power allocation scheme of each D2D group by optimal Karush Kuhn Tucker (KKT) constraint condition.Simulation results show that ensuring the quality of service of the cellular users,meanwhile,the algorithm outperforms the traditional orthogonal multiple access (OMA) technology on the sum energy efficiency of D2D users. |
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