The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Teknologi rangkaian heterogen (HetNets) dijangka akan digunakan dalam rangkaian selular generasi akan datang untuk meningkatkan kapasiti sistem. Walau bagaimanapun, penggunaan HetNets memperkenalkan sejumlah besar gangguan antara peringkat yang berbeza dalam sel yang sama. Dalam makalah ini, kami mencadangkan pendekatan penjajaran gangguan (IA) berasaskan kedudukan terkurung kedudukan berwajaran (WRCRM) untuk HetNets tiga peringkat. Konsep RCRM digunakan dalam cara yang berbeza untuk menangani ciri asas peringkat yang berbeza: toleransi gangguan yang berbeza. Dalam pendekatan WRCRM yang dicadangkan, komponen gangguan pada peringkat yang berbeza ditimbang dengan faktor pemberat (WF) yang berbeza untuk mencerminkan kerentanan mereka terhadap gangguan. Pertama, kami memperoleh ikatan dalaman dan luaran yang longgar pada darjah kebebasan yang boleh dicapai (DoF) untuk sistem tiga peringkat yang dimodelkan sebagai saluran siaran (MIBC) yang saling mengganggu tiga pengguna. Kemudian, sempadan terbitan bersama-sama syarat kebolehlaksanaan IA yang terkenal digunakan untuk menunjukkan keberkesanan pendekatan WRCRM yang dicadangkan. Keputusan menunjukkan bahawa terdapat nilai WF yang memaksimumkan dimensi bebas gangguan yang boleh dicapai. Selain itu, melaraskan bilangan DoF yang diperlukan mengikut had terbitan meningkatkan prestasi pendekatan WRCRM.
Ahmed M. BENAYA
Egypt-Japan University of Science and Technology,Kyushu University
Osamu MUTA
Kyushu University
Maha ELSABROUTY
Egypt-Japan University of Science and Technology
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Salinan
Ahmed M. BENAYA, Osamu MUTA, Maha ELSABROUTY, "Performance Analysis of Weighted Rank Constrained Rank Minimization Interference Alignment for Three-Tier Downlink Heterogeneous Networks" in IEICE TRANSACTIONS on Communications,
vol. E103-B, no. 3, pp. 262-271, March 2020, doi: 10.1587/transcom.2019EBP3084.
Abstract: Heterogeneous networks (HetNets) technology is expected to be applied in next generation cellular networks to boost system capacity. However, applying HetNets introduces a significant amount of interference among different tiers within the same cell. In this paper, we propose a weighted rank constrained rank minimization (WRCRM) based interference alignment (IA) approach for three-tier HetNets. The concept of RCRM is applied in a different way to deal with the basic characteristic of different tiers: their different interference tolerance. In the proposed WRCRM approach, interference components at different tiers are weighted with different weighting factors (WFs) to reflect their vulnerability to interference. First, we derive an inner and a loose outer bound on the achievable degrees of freedom (DoF) for the three-tier system that is modeled as a three-user mutually interfering broadcast channel (MIBC). Then, the derived bounds along with the well-known IA feasibility conditions are used to show the effectiveness of the proposed WRCRM approach. Results show that there exist WF values that maximize the achievable interference-free dimensions. Moreover, adjusting the required number of DoF according to the derived bounds improves the performance of the WRCRM approach.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2019EBP3084/_p
Salinan
@ARTICLE{e103-b_3_262,
author={Ahmed M. BENAYA, Osamu MUTA, Maha ELSABROUTY, },
journal={IEICE TRANSACTIONS on Communications},
title={Performance Analysis of Weighted Rank Constrained Rank Minimization Interference Alignment for Three-Tier Downlink Heterogeneous Networks},
year={2020},
volume={E103-B},
number={3},
pages={262-271},
abstract={Heterogeneous networks (HetNets) technology is expected to be applied in next generation cellular networks to boost system capacity. However, applying HetNets introduces a significant amount of interference among different tiers within the same cell. In this paper, we propose a weighted rank constrained rank minimization (WRCRM) based interference alignment (IA) approach for three-tier HetNets. The concept of RCRM is applied in a different way to deal with the basic characteristic of different tiers: their different interference tolerance. In the proposed WRCRM approach, interference components at different tiers are weighted with different weighting factors (WFs) to reflect their vulnerability to interference. First, we derive an inner and a loose outer bound on the achievable degrees of freedom (DoF) for the three-tier system that is modeled as a three-user mutually interfering broadcast channel (MIBC). Then, the derived bounds along with the well-known IA feasibility conditions are used to show the effectiveness of the proposed WRCRM approach. Results show that there exist WF values that maximize the achievable interference-free dimensions. Moreover, adjusting the required number of DoF according to the derived bounds improves the performance of the WRCRM approach.},
keywords={},
doi={10.1587/transcom.2019EBP3084},
ISSN={1745-1345},
month={March},}
Salinan
TY - JOUR
TI - Performance Analysis of Weighted Rank Constrained Rank Minimization Interference Alignment for Three-Tier Downlink Heterogeneous Networks
T2 - IEICE TRANSACTIONS on Communications
SP - 262
EP - 271
AU - Ahmed M. BENAYA
AU - Osamu MUTA
AU - Maha ELSABROUTY
PY - 2020
DO - 10.1587/transcom.2019EBP3084
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E103-B
IS - 3
JA - IEICE TRANSACTIONS on Communications
Y1 - March 2020
AB - Heterogeneous networks (HetNets) technology is expected to be applied in next generation cellular networks to boost system capacity. However, applying HetNets introduces a significant amount of interference among different tiers within the same cell. In this paper, we propose a weighted rank constrained rank minimization (WRCRM) based interference alignment (IA) approach for three-tier HetNets. The concept of RCRM is applied in a different way to deal with the basic characteristic of different tiers: their different interference tolerance. In the proposed WRCRM approach, interference components at different tiers are weighted with different weighting factors (WFs) to reflect their vulnerability to interference. First, we derive an inner and a loose outer bound on the achievable degrees of freedom (DoF) for the three-tier system that is modeled as a three-user mutually interfering broadcast channel (MIBC). Then, the derived bounds along with the well-known IA feasibility conditions are used to show the effectiveness of the proposed WRCRM approach. Results show that there exist WF values that maximize the achievable interference-free dimensions. Moreover, adjusting the required number of DoF according to the derived bounds improves the performance of the WRCRM approach.
ER -