Performance Evaluations of Transmit Diversity Schemes with Synchronization Signals for LTE Downlink

Satoshi NAGATA; Yoshihisa KISHIYAMA; Motohiro TANNO; Kenichi HIGUCHI; Mamoru SAWAHASHI

doi:10.1587/transcom.E98.B.1110

Performance Evaluations of Transmit Diversity Schemes with Synchronization Signals for LTE Downlink

Satoshi NAGATA, Yoshihisa KISHIYAMA, Motohiro TANNO, Kenichi HIGUCHI, Mamoru SAWAHASHI

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This paper presents the effect of transmit diversity on the initial and neighboring cell search time performance and the most appropriate transmit diversity scheme based on system-level simulations employing synchronization signals for the Long Term Evolution (LTE) downlink. The synchronization signals including the primary synchronization signal (PSS) and secondary synchronization signal (SSS) are the first physical channel that a set of user equipment (UE) acquires at the initial radio-link connection. The transmit diversity candidates assumed in the paper are Precoding Vector Switching (PVS), Cyclic Delay Diversity (CDD), Time Switched Transmit Diversity (TSTD), and Frequency Switched Transmit Diversity (FSTD), which are all suitable for simple blind detection at a UE. System-level simulation results show that transmit diversity is effective in improving the detection probabilities of the received PSS timing and PSS sequence in the first step and those of the SSS sequence and radio frame timing in the second step of the cell search process. We also show that PVS achieves fast cell search time performance of less than approximately 20ms at the location probability of 90% regardless of the inter-cell site distance up to 10km. Hence, we conclude that PVS is the best transmit diversity scheme for the synchronization signals from the viewpoint of decreasing the initial and neighboring cell search times.

Publication: IEICE TRANSACTIONS on Communications Vol.E98-B No.6 pp.1110-1124

Publication Date: 2015/06/01

Publicized

Online ISSN: 1745-1345

DOI: 10.1587/transcom.E98.B.1110

Type of Manuscript: PAPER

Category: Terrestrial Wireless Communication/Broadcasting Technologies

Authors

Satoshi NAGATA
  NTT DOCOMO, INC.
Yoshihisa KISHIYAMA
  NTT DOCOMO, INC.
Motohiro TANNO
  NTT DOCOMO, INC.
Kenichi HIGUCHI
  NTT DOCOMO, INC.
Mamoru SAWAHASHI
  Tokyo University of Science

Keyword

cell search, synchronization signals, LTE, transmit diversity, cell ID detection

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Satoshi NAGATA, Yoshihisa KISHIYAMA, Motohiro TANNO, Kenichi HIGUCHI, Mamoru SAWAHASHI, "Performance Evaluations of Transmit Diversity Schemes with Synchronization Signals for LTE Downlink" in IEICE TRANSACTIONS on Communications, vol. E98-B, no. 6, pp. 1110-1124, June 2015, doi: 10.1587/transcom.E98.B.1110.
Abstract: This paper presents the effect of transmit diversity on the initial and neighboring cell search time performance and the most appropriate transmit diversity scheme based on system-level simulations employing synchronization signals for the Long Term Evolution (LTE) downlink. The synchronization signals including the primary synchronization signal (PSS) and secondary synchronization signal (SSS) are the first physical channel that a set of user equipment (UE) acquires at the initial radio-link connection. The transmit diversity candidates assumed in the paper are Precoding Vector Switching (PVS), Cyclic Delay Diversity (CDD), Time Switched Transmit Diversity (TSTD), and Frequency Switched Transmit Diversity (FSTD), which are all suitable for simple blind detection at a UE. System-level simulation results show that transmit diversity is effective in improving the detection probabilities of the received PSS timing and PSS sequence in the first step and those of the SSS sequence and radio frame timing in the second step of the cell search process. We also show that PVS achieves fast cell search time performance of less than approximately 20ms at the location probability of 90% regardless of the inter-cell site distance up to 10km. Hence, we conclude that PVS is the best transmit diversity scheme for the synchronization signals from the viewpoint of decreasing the initial and neighboring cell search times.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/transcom.E98.B.1110/_p

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@ARTICLE{e98-b_6_1110,
author={Satoshi NAGATA, Yoshihisa KISHIYAMA, Motohiro TANNO, Kenichi HIGUCHI, Mamoru SAWAHASHI, },
journal={IEICE TRANSACTIONS on Communications},
title={Performance Evaluations of Transmit Diversity Schemes with Synchronization Signals for LTE Downlink},
year={2015},
volume={E98-B},
number={6},
pages={1110-1124},
abstract={This paper presents the effect of transmit diversity on the initial and neighboring cell search time performance and the most appropriate transmit diversity scheme based on system-level simulations employing synchronization signals for the Long Term Evolution (LTE) downlink. The synchronization signals including the primary synchronization signal (PSS) and secondary synchronization signal (SSS) are the first physical channel that a set of user equipment (UE) acquires at the initial radio-link connection. The transmit diversity candidates assumed in the paper are Precoding Vector Switching (PVS), Cyclic Delay Diversity (CDD), Time Switched Transmit Diversity (TSTD), and Frequency Switched Transmit Diversity (FSTD), which are all suitable for simple blind detection at a UE. System-level simulation results show that transmit diversity is effective in improving the detection probabilities of the received PSS timing and PSS sequence in the first step and those of the SSS sequence and radio frame timing in the second step of the cell search process. We also show that PVS achieves fast cell search time performance of less than approximately 20ms at the location probability of 90% regardless of the inter-cell site distance up to 10km. Hence, we conclude that PVS is the best transmit diversity scheme for the synchronization signals from the viewpoint of decreasing the initial and neighboring cell search times.},
keywords={},
doi={10.1587/transcom.E98.B.1110},
ISSN={1745-1345},
month={June},}

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TY - JOUR
TI - Performance Evaluations of Transmit Diversity Schemes with Synchronization Signals for LTE Downlink
T2 - IEICE TRANSACTIONS on Communications
SP - 1110
EP - 1124
AU - Satoshi NAGATA
AU - Yoshihisa KISHIYAMA
AU - Motohiro TANNO
AU - Kenichi HIGUCHI
AU - Mamoru SAWAHASHI
PY - 2015
DO - 10.1587/transcom.E98.B.1110
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E98-B
IS - 6
JA - IEICE TRANSACTIONS on Communications
Y1 - June 2015
AB - This paper presents the effect of transmit diversity on the initial and neighboring cell search time performance and the most appropriate transmit diversity scheme based on system-level simulations employing synchronization signals for the Long Term Evolution (LTE) downlink. The synchronization signals including the primary synchronization signal (PSS) and secondary synchronization signal (SSS) are the first physical channel that a set of user equipment (UE) acquires at the initial radio-link connection. The transmit diversity candidates assumed in the paper are Precoding Vector Switching (PVS), Cyclic Delay Diversity (CDD), Time Switched Transmit Diversity (TSTD), and Frequency Switched Transmit Diversity (FSTD), which are all suitable for simple blind detection at a UE. System-level simulation results show that transmit diversity is effective in improving the detection probabilities of the received PSS timing and PSS sequence in the first step and those of the SSS sequence and radio frame timing in the second step of the cell search process. We also show that PVS achieves fast cell search time performance of less than approximately 20ms at the location probability of 90% regardless of the inter-cell site distance up to 10km. Hence, we conclude that PVS is the best transmit diversity scheme for the synchronization signals from the viewpoint of decreasing the initial and neighboring cell search times.
ER -