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Coverage performance in multi-stream MIMO-ZFBF heterogeneous networks

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Coverage performance in multi-stream MIMO-ZFBF heterogeneous networks. / Khoshkholgh, Mohammad G.; C. M. Leung, Victor; Navaie, Keivan; Shin, K. G. .

In: IEEE Transactions on Vehicular Technology, Vol. 66, No. 8, 08.2017, p. 6801-6818.

Research output: Contribution to journalJournal article

Harvard

Khoshkholgh, MG, C. M. Leung, V, Navaie, K & Shin, KG 2017, 'Coverage performance in multi-stream MIMO-ZFBF heterogeneous networks' IEEE Transactions on Vehicular Technology, vol. 66, no. 8, pp. 6801-6818. https://doi.org/10.1109/TVT.2017.2651641

APA

Khoshkholgh, M. G., C. M. Leung, V., Navaie, K., & Shin, K. G. (2017). Coverage performance in multi-stream MIMO-ZFBF heterogeneous networks. IEEE Transactions on Vehicular Technology, 66(8), 6801-6818. https://doi.org/10.1109/TVT.2017.2651641

Vancouver

Khoshkholgh MG, C. M. Leung V, Navaie K, Shin KG. Coverage performance in multi-stream MIMO-ZFBF heterogeneous networks. IEEE Transactions on Vehicular Technology. 2017 Aug;66(8):6801-6818. https://doi.org/10.1109/TVT.2017.2651641

Author

Khoshkholgh, Mohammad G. ; C. M. Leung, Victor ; Navaie, Keivan ; Shin, K. G. . / Coverage performance in multi-stream MIMO-ZFBF heterogeneous networks. In: IEEE Transactions on Vehicular Technology. 2017 ; Vol. 66, No. 8. pp. 6801-6818.

Bibtex

@article{54ad4fe045ca484699f0c755b7d0068f,
title = "Coverage performance in multi-stream MIMO-ZFBF heterogeneous networks",
abstract = "We study the coverage performance of multiantenna (MIMO) communications in heterogenous networks (HetNets). Our main focus is on open-loop and multi-stream MIMO zero-forcing beamforming (ZFBF) at the receiver. Network coverage is evaluated adopting tools from stochastic geometry. Besides fixed-rate transmission (FRT), we also consider adaptive-rate transmission (ART) while its coverage performance, despite its high relevance, has so far been overlooked. On the other hand, while the focus of the existing literature has solely been on the evaluation of coverage probability per stream, we target coverage probability per communication link — comprising multiple streams — which is shown to be a more conclusive performance metric in multi-stream MIMO systems. This, however, renders various analytical complexities rooted in statistical dependency among streams in each link. Using a rigorous analysis, we provide closed-form bounds on the coverage performance for FRT and ART. These bounds explicitly capture impacts of various system parameters including densities of BSs, SIR thresholds, and multiplexing gains. Our analytical results are further shown to cover popular closed-loop MIMO systems, such as eigen-beamforming and space-division multiple access (SDMA). The accuracy of our analysis is confirmed by extensive simulations. The findings in this paper shed light on several important aspects of dense MIMO HetNets: (i) increasing the multiplexing gains yields lower coverage performance; (ii) densifying network by installing an excessive number of lowpower femto BSs allows the growth of the multiplexing gain of high-power, low-density macro BSs without compromising the coverage performance; and (iii) for dense HetNets, the coverage probability does not increase with the increase of deployment densities.",
author = "Khoshkholgh, {Mohammad G.} and {C. M. Leung}, Victor and Keivan Navaie and Shin, {K. G.}",
note = "{\circledC}2017 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.",
year = "2017",
month = "8",
doi = "10.1109/TVT.2017.2651641",
language = "English",
volume = "66",
pages = "6801--6818",
journal = "IEEE Transactions on Vehicular Technology",
issn = "0018-9545",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "8",

}

RIS

TY - JOUR

T1 - Coverage performance in multi-stream MIMO-ZFBF heterogeneous networks

AU - Khoshkholgh, Mohammad G.

AU - C. M. Leung, Victor

AU - Navaie, Keivan

AU - Shin, K. G.

N1 - ©2017 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

PY - 2017/8

Y1 - 2017/8

N2 - We study the coverage performance of multiantenna (MIMO) communications in heterogenous networks (HetNets). Our main focus is on open-loop and multi-stream MIMO zero-forcing beamforming (ZFBF) at the receiver. Network coverage is evaluated adopting tools from stochastic geometry. Besides fixed-rate transmission (FRT), we also consider adaptive-rate transmission (ART) while its coverage performance, despite its high relevance, has so far been overlooked. On the other hand, while the focus of the existing literature has solely been on the evaluation of coverage probability per stream, we target coverage probability per communication link — comprising multiple streams — which is shown to be a more conclusive performance metric in multi-stream MIMO systems. This, however, renders various analytical complexities rooted in statistical dependency among streams in each link. Using a rigorous analysis, we provide closed-form bounds on the coverage performance for FRT and ART. These bounds explicitly capture impacts of various system parameters including densities of BSs, SIR thresholds, and multiplexing gains. Our analytical results are further shown to cover popular closed-loop MIMO systems, such as eigen-beamforming and space-division multiple access (SDMA). The accuracy of our analysis is confirmed by extensive simulations. The findings in this paper shed light on several important aspects of dense MIMO HetNets: (i) increasing the multiplexing gains yields lower coverage performance; (ii) densifying network by installing an excessive number of lowpower femto BSs allows the growth of the multiplexing gain of high-power, low-density macro BSs without compromising the coverage performance; and (iii) for dense HetNets, the coverage probability does not increase with the increase of deployment densities.

AB - We study the coverage performance of multiantenna (MIMO) communications in heterogenous networks (HetNets). Our main focus is on open-loop and multi-stream MIMO zero-forcing beamforming (ZFBF) at the receiver. Network coverage is evaluated adopting tools from stochastic geometry. Besides fixed-rate transmission (FRT), we also consider adaptive-rate transmission (ART) while its coverage performance, despite its high relevance, has so far been overlooked. On the other hand, while the focus of the existing literature has solely been on the evaluation of coverage probability per stream, we target coverage probability per communication link — comprising multiple streams — which is shown to be a more conclusive performance metric in multi-stream MIMO systems. This, however, renders various analytical complexities rooted in statistical dependency among streams in each link. Using a rigorous analysis, we provide closed-form bounds on the coverage performance for FRT and ART. These bounds explicitly capture impacts of various system parameters including densities of BSs, SIR thresholds, and multiplexing gains. Our analytical results are further shown to cover popular closed-loop MIMO systems, such as eigen-beamforming and space-division multiple access (SDMA). The accuracy of our analysis is confirmed by extensive simulations. The findings in this paper shed light on several important aspects of dense MIMO HetNets: (i) increasing the multiplexing gains yields lower coverage performance; (ii) densifying network by installing an excessive number of lowpower femto BSs allows the growth of the multiplexing gain of high-power, low-density macro BSs without compromising the coverage performance; and (iii) for dense HetNets, the coverage probability does not increase with the increase of deployment densities.

U2 - 10.1109/TVT.2017.2651641

DO - 10.1109/TVT.2017.2651641

M3 - Journal article

VL - 66

SP - 6801

EP - 6818

JO - IEEE Transactions on Vehicular Technology

JF - IEEE Transactions on Vehicular Technology

SN - 0018-9545

IS - 8

ER -