Spatial-frequency signal alignment for opportunistic transmission

L Lu, GY Li, A Maaref - IEEE Transactions on Signal Processing, 2014 - ieeexplore.ieee.org
In this paper, we investigate opportunistic transmission based on signal alignment for
multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) …

Opportunistic transmission exploiting frequency-and spatial-domain degrees of freedom

L Lu, GY Li, A Maaref, R Yao - IEEE wireless communications, 2014 - ieeexplore.ieee.org
With increasing demand to support high-data-rate applications, spectral efficiency is
becoming more and more important. To exploit limited spectrum efficiently, techniques, such …

Multiuser-diversity-based interference alignment in cognitive radio networks

Y He, H Yin, N Zhao - AEU-International Journal of Electronics and …, 2016 - Elsevier
As a promising interference management technique, interference alignment (IA) has been
applied to cognitive radio (CR) networks. However, the received signal-to-interference-plus …

干扰对齐技术研究综述

江雪, 郑宝玉 - 信号处理, 2015 - signal.ejournal.org.cn
随着用户数的增大, 干扰制约着无线通信网络的容量. 在资源有限的情况下,
干扰对齐的提出为系统容量的提高提供了新的方法, 成为当前降低通信系统干扰的研究热点 …

Research on the communication method of mobile network shadow fading based on interference alignment algorithm

W Zhou, S Yu - The Journal of Supercomputing, 2016 - Springer
As the wireless communication signal encounters obstacles in the communication process
caused by shadow fading, traditional communication methods try to add more microcells …

Performance improvements of interference alignment with multiuser diversity in cognitive radio networks

Y He, H Yin, FR Yu, N Zhao - 2013 International Conference on …, 2013 - ieeexplore.ieee.org
Interference alignment (IA) is a recent breakthrough in interference management, and has
been applied to cognitive radio. However, the signal-to-noise ratio (SNR) may decrease …

Threshold-based selective feedback for opportunistic interference alignment

Z Xu, M Gan, T Zemen - 2015 IEEE Wireless Communications …, 2015 - ieeexplore.ieee.org
Opportunistic interference alignment (OIA) exploits channel randomness and multiuser
diversity by user selection. In this paper, we address the major disadvantage of OIA which …

On the degrees of freedom for opportunistic interference alignment with 1-bit feedback: The 3 cell case

Z Xu, M Gan, T Zemen - arXiv preprint arXiv:1501.04312, 2015 - arxiv.org
Opportunistic interference alignment (OIA) exploits channel randomness and multiuser
diversity by user selection. For OIA the transmitter needs channel state information (CSI) …

Opportunistic interference alignment with 1-bit feedback in 3-cell interference channels

Z Xu, M Gan, T Zemen - … on Personal, Indoor, and Mobile Radio …, 2015 - ieeexplore.ieee.org
Opportunistic interference alignment (OIA) exploits channel randomness and multiuser
diversity by user selection. The transmitter needs channel state information (CSI), which is …

User cooperation in wireless time-variant channels

Z Xu - 2016 - repositum.tuwien.at
For wireless communications, the spectrum limitation and user mobility are two major
challenges to promise reliable communications with high data rates and low latency. In …