Patent
Low-complexity distributive interference aligning method
Zhao Junhui,Wang Shangyao,Wang Zhuanyun +2 more
- 28 Sep 2016
4
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.
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Abstract: The invention discloses a low-complexity distributive interference aligning method. Through applying a ranking QR decomposition algorithm on an interference covariance matrix of a user K, 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. Compared with a traditional distributive interference aligning method, the invention reduces system complexity distinctively at the same time of ensuring system capacity and iteration convergence speed.
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Citations
Patent
Antenna arrangements for interference alignment in line of sight wireless communications
Taiwen Tang,Ahikam Aharony +1 more
- 16 Aug 2018
TL;DR: An antenna arrangement includes antenna elements that are arranged, at each end of a Line of Sight communication link, into a selected shape as discussed by the authors, and the distances between the antenna elements at each link are determined based on a Line-Of-Sight distance between the ends of the link and interference alignment.
6
Patent
Interference alignment algorithm based on QR decomposition
Zeng Guigen,Wei Zhongzhong +1 more
- 17 May 2017
TL;DR: In this article, an interference alignment algorithm based on QR decomposition is proposed to align the interference among the cells and in the cells, so that each user can realize the freedom of 1/3 of the channel spatial dimension while the reception end only needs to perform one time of precoding processing.
2
Patent
Combination-based interference alignment method in MIMO system under nonideal channel condition
Fu Youhua,Liu Wei,Wang Hairong +2 more
- 13 Jun 2017
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.
1
Patent
Non-orthogonal multiple access system signal detection method with low complexity
Tang Jiashan,Zhu Jingjing +1 more
- 16 Apr 2019
TL;DR: In this paper, a non-orthogonal multiple access system (NOMA) signal detection method with low complexity has been proposed, where the symmetry between column vectors is employed to reduce orthogonal calculation in a ranking QR decomposition algorithm.