| MIMO双向中继信道能量效率优化算法 |
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| 引用本文： | 方力,邱玲.MIMO双向中继信道能量效率优化算法[J].中国科技论文在线,2014(4):383-386. |
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| 作者姓名： | 方力 邱玲 |
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| 作者单位： | 中国科学技术大学电子工程与信息科学系,合肥230027 |
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| 基金项目： | 高等学校博士学科点专项科研基金资助项目（20133402110061） |
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| 摘 要： | 研究了多输入多输出(multiple input multple output,MIMO)双向中继信道的能量效率优化问题。首先考虑无功率约束下的能量效率优化问题,采用嵌套优化方法得到最优的功率分配。然后求解有功率约束时的能量效率优化问题,如果无功率约束时的最优解在最大功率约束内,则该最优解为有功率约束时的最优解;否则通过确定一部分节点的最优发射功率,减小剩下节点的发射功率的优化区间来求解该问题。仿真结果验证了所提优化算法的有效性。
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| 关 键 词： | 通信与信息系统 MIMO双向中继 优化 能量效率 |
Energy efficiency optimization for two-way MIMO relay channels |
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| Fang Li,Qiu Ling.Energy efficiency optimization for two-way MIMO relay channels[J].Sciencepaper Online,2014(4):383-386. |
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| Authors: | Fang Li Qiu Ling |
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| Institution: | (Department of Electronic Engineering and Information Science ,University of Science and Technology of China, Hef ei 230027,China) |
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| Abstract: | This paper considers the energy efficiency optimization for the two-way multiple-input multiple-output （MIMO）relay channel.Considering the unconstrained energy efficiency optimization case without power constraints at first,the framework of nested optimization is employed to obtain the optimal power allocations.Afterwards,the optimal unconstrained solutions are ex-tended to the constrained case.If the optimal unconstrained solutions fall within the maximum power constraints,then they are the optimal solution for the constrained case.Otherwise,we confirm several nodes’optimal power and then reduce the range of the power optimization interval to derive the constrained optimal solution.Simulations are finally provided to show the effective-ness of our algorithms. |
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| Keywords: | communication and information systems two-way MIMO relay channels optimization energy efficiency |
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