| 基于干扰信道的干扰对齐算法综述 |
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| 引用本文： | 杨洁,宋荣方,董恒.基于干扰信道的干扰对齐算法综述[J].南京邮电大学学报(自然科学版),2012,32(4):1-8. |
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| 作者姓名： | 杨洁 宋荣方 董恒 |
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| 作者单位： | 1. 南京邮电大学通信与信息工程学院,江苏南京,210003
2. 南京邮电大学通信与信息工程学院,江苏南京210003;东南大学移动通信国家重点实验室,江苏南京210096 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)(2007CB310607);国家自然科学基金(60972041);国家科技重大专项(2009ZX03003-006);教育部博士点基金(200802930004);江苏省高校自然科学基础研究计划重大项目(08KJD510001);东南大学移动通信国家重点实验室开放课题(N200809)资助项目 |
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| 摘 要： | 在无线通信系统中,用户间干扰总是制约着网络的吞吐量,因此寻求有效的干扰管理方法显得尤为关键.文中首先引出多种传统的干扰管理方法,但基于这些方法的系统容量都会受到干扰的限制,而且随着用户数的增加,很难获取这些方法的一般解.然而干扰对齐算法可使系统的总容量随着用户数的增加线性递增,文中重点综述两类干扰对齐算法:一类是基于信号空间的干扰对齐算法,另一类是基于信号编码级的干扰对齐算法,最后简要分析了干扰对齐算法的可行性和应用前景.
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| 关 键 词： | 干扰信道 多输入多输出 干扰对齐 信道容量 干扰管理 |
An Overview of Interference Alignment Based on Interference Channel |
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| YANG Jie
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SONG Rong-fang
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DONG Heng.An Overview of Interference Alignment Based on Interference Channel[J].Journal of Nanjing University of Posts and Telecommunications,2012,32(4):1-8. |
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| Authors: | YANG Jie SONG Rong-fang DONG Heng |
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| Institution: | 1.College of Telecommunications & Information Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210003,China 2.National Mobile Communications Research Laboratory,Southeast University,Nanjing 210096,China |
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| Abstract: | As an inevitable phenomenon in wireless networks,interference is the primary barrier to enhance the overall throughput of the network.Managing interference to overcome this barrier has emerged as a crucial step in developing efficient wireless networks.There are some conventional interference management approaches mentioned in this paper.The sum-capacity of the network based on all these approaches is limited by interference,and these approaches cannot get some general solutions with the increase of user number.Whereas interference alignment is a powerful scheme,with which the sum-capacity of the interference networks could be increased linearly with the number of users.Two versions of interference alignment are overviewed in this paper:signal space alignment and signal scale alignment.The feasibility and challenges of interference alignment schemes are also analyzed briefly. |
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| Keywords: | interference channel MIMO interference alignment channel capacity interference management |
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