Patent
Combination-based interference alignment method in MIMO system under nonideal channel condition
Fu Youhua,Liu Wei,Wang Hairong +2 more
- 13 Jun 2017
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TL;DR: In this paper, a combination-based interference alignment method in an MIMO system under nonideal channel condition is proposed, where the complexity and performance of the algorithms are compromised.
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Abstract: The invention discloses a combination-based interference alignment method in an MIMO system under nonideal channel condition. According to features of two algorithms: a Max-SINR algorithm and a Min-WLI algorithm, compromise between two aspects: complexity and performance is carried out; the iteration processes of the Max-SINR algorithm and the Min-WLI algorithm comprise processing a precoding matrix and an interference inhibition matrix and the iteration processes are mutually independent, so Min-Leakage algorithm iteration can be carried out on the system firstly, after the iteration is finished, the Max-SINR algorithm iteration is carried out, and the complexity of the algorithms can be effectively reduced.
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Citations
Patent
Practical interference alignment and deletion method, and terminal equipment
Jin Jin,Gao Xiangchuan +1 more
- 28 Sep 2018
TL;DR: In this paper, a practical interference alignment and deletion method comprising the steps as follows: interference alignment precoding of two sending nodes is designed, so that the interference of the two receiving nodes to two unexpected receiving nodes is separately combined into the same signal sub-spaces of the receiving nodes.
References
Patent
Method of communicating between base station and terminal based on interference alignment in multi-cell multi-user multiple-input multiple-output (MIMO) interference channel and method and apparatus of communication using interference alignment and block successive interference pre-cancellation in multi-user multiple-input multiple-output interference channel
Jaehyun Park,Sung Jin Yoo,Myung Sun Song,Byung Jang Jeong,Jae Ick Choi +4 more
- 18 Mar 2013
TL;DR: In this paper, a communication method of a base station and a terminal based on interference alignment in a multi-cell multi-user multiple-input multiple-output (MIMO) interference channel and a method and apparatus of communication using interference alignment and block successive interference pre-cancellation in a multiuser MIMO interference channel was proposed.
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Patent
Heterogeneous cellular network interference management method and device
Zhang Tiankui,Niu Qin,Hu Zhirui +2 more
- 14 Jan 2015
TL;DR: In this paper, a heterogeneous cellular network interference management method and device is presented, which comprises the steps that macrocell users and small-cell users estimate channel state information and feed the channel-state information back to a macro base station; the macro BS calculates a pre-coded matrix of each small cell, aligns same-layer inter-cell interference between the small cells to the crosslayer intercell interference direction of the macroBS, guarantees that useful signals of the small BS users pass through high-quality channels, and notifies each small BS through a return link.
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Patent
Low-complexity distributive interference aligning method
Zhao Junhui,Wang Shangyao,Wang Zhuanyun +2 more
- 28 Sep 2016
TL;DR: In this article, a low-complexity distributive interference aligning method was proposed, where the last dk list of a unitary matrix Q is selected as a user-approximate interference suppression smoothing matrix, wherein the decomposition algorithm is based on a modified Gram-Schmidt method.
4
Patent
MIMO (Multiple Input Multiple Output) interference alignment wireless communication method under F-norm (Frobenius norm) bounded channel error model
Qingzhong Li,Jia Min,Gu Xuemai,Guo Qing,Zhao Dawei,Wang Han,Hanqing Li,Jia Dan,Mo Lifeng,Chen Lie +9 more
- 17 Jul 2013
TL;DR: In this article, the authors proposed a MIMO interference alignment wireless communication method under an F-norm (Frobenius norm) bounded channel error model to solve the problem that network throughputs are significantly reduced when errors occur in a channel condition of a transmitting terminal.
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