Proceedings of the 2015 4th National Conference on Electrical, Electronics and Computer Engineering

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An Adaptive K-nearest-neighbor Interference Alignment Algorithm Based on Minimizing Projection in Cellular System

Authors
Longzhen Dai, Ran Duan, Weijia Cui, Daming Wang
Corresponding Author
Longzhen Dai
Available Online December 2015.
DOI
10.2991/nceece-15.2016.91How to use a DOI?
Keywords
cellular networks; adaptive K-nearest-neighbor; interference alignment; precoding vector; threshold of signal-to-interference ratio
Abstract

For the disadvantages that the high computational complexity and the heavy overheads of the system when interference alignment is applied to the cellular system for co-channel interference cancellation, this paper proposed an adaptive K-nearest-neighbor interference alignment algorithm based on minimizing projection. This algorithm adaptively prechooses interference according to the threshold of signal-to-interference ratio(SIR) and uses the optimal method to minimize the projection of the interference casting to signal subspace, which can obtain the precoding vector only at the transmitter and align the prechosen interference to the interference subspace, thus the computational complexity of interference alignment could be greatly decreased. Simulation results show that, at the threshold of SIR of 15dB, the proposed algorithm can get a performance as well as the existing methods when the number of antennas can meet the demands, and the performance can be much better than the existing ones when the number of antennas couldn’t meet the demands.

Copyright
© 2016, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 2015 4th National Conference on Electrical, Electronics and Computer Engineering
Series
Advances in Engineering Research
Publication Date
December 2015
ISBN
10.2991/nceece-15.2016.91
ISSN
2352-5401
DOI
10.2991/nceece-15.2016.91How to use a DOI?
Copyright
© 2016, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

risenwbib
TY  - CONF
AU  - Longzhen Dai
AU  - Ran Duan
AU  - Weijia Cui
AU  - Daming Wang
PY  - 2015/12
DA  - 2015/12
TI  - An Adaptive K-nearest-neighbor Interference Alignment Algorithm Based on Minimizing Projection in Cellular System
BT  - Proceedings of the 2015 4th National Conference on Electrical, Electronics and Computer Engineering
PB  - Atlantis Press
SP  - 463
EP  - 471
SN  - 2352-5401
UR  - https://doi.org/10.2991/nceece-15.2016.91
DO  - 10.2991/nceece-15.2016.91
ID  - Dai2015/12
ER  -