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
Kami menyiasat hubungan antara ciri kehilangan laluan gelombang mikro dan penyekatan garis penglihatan (LOS) dalam persekitaran bandar dengan antena stesen pangkalan rendah menggunakan peralatan ukuran penyekat LOS yang telah kami bangunkan. Perubahan dalam kehilangan laluan, keadaan lalu lintas dan penyekatan LOS yang disebabkan oleh kenderaan diukur secara serentak. Didapati bahawa kehilangan laluan mempamerkan taburan Rayleigh walaupun dalam persekitaran LOS jika jumlah trafik adalah sedemikian sehingga penyekatan LOS berlaku selama 80% daripada masa atau lebih, tetapi kehilangan laluan kes lain menunjukkan taburan Nakagami-Rice. Ia juga didapati bahawa nisbah aras gelombang koheren kepada paras sampul surat (c/r) amat bergantung kepada kadar aliran trafik jalan raya.
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Salinan
Hiroyuki SHIMIZU, Hironari MASUI, Masanori ISHII, Kozo SAKAWA, Takehiko KOBAYASHI, Makoto ABO, Chikao NAGASAWA, "Effects of Road Traffic on Probability Distributions of Path-Loss in an Urban Microcellular Environment" in IEICE TRANSACTIONS on Fundamentals,
vol. E85-A, no. 7, pp. 1578-1584, July 2002, doi: .
Abstract: We investigate the relationship between microwave path-loss characteristics and line-of-sight (LOS) blocking in an urban environment with a low base-station antenna using LOS-blocking measurement equipment that we have developed. Changes in path loss, traffic conditions, and LOS-blocking caused by vehicles were measured simultaneously. It was found that path loss exhibits a Rayleigh distribution even in a LOS environment if the amount of traffic is such that LOS- blocking occurs for 80% of the time or more, but the other case path loss exhibits a Nakagami-Rice distribution. It was also found that ratio of coherent wave level to envelope level (c/r) depends heavily on rate of road traffic flow.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e85-a_7_1578/_p
Salinan
@ARTICLE{e85-a_7_1578,
author={Hiroyuki SHIMIZU, Hironari MASUI, Masanori ISHII, Kozo SAKAWA, Takehiko KOBAYASHI, Makoto ABO, Chikao NAGASAWA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Effects of Road Traffic on Probability Distributions of Path-Loss in an Urban Microcellular Environment},
year={2002},
volume={E85-A},
number={7},
pages={1578-1584},
abstract={We investigate the relationship between microwave path-loss characteristics and line-of-sight (LOS) blocking in an urban environment with a low base-station antenna using LOS-blocking measurement equipment that we have developed. Changes in path loss, traffic conditions, and LOS-blocking caused by vehicles were measured simultaneously. It was found that path loss exhibits a Rayleigh distribution even in a LOS environment if the amount of traffic is such that LOS- blocking occurs for 80% of the time or more, but the other case path loss exhibits a Nakagami-Rice distribution. It was also found that ratio of coherent wave level to envelope level (c/r) depends heavily on rate of road traffic flow.},
keywords={},
doi={},
ISSN={},
month={July},}
Salinan
TY - JOUR
TI - Effects of Road Traffic on Probability Distributions of Path-Loss in an Urban Microcellular Environment
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1578
EP - 1584
AU - Hiroyuki SHIMIZU
AU - Hironari MASUI
AU - Masanori ISHII
AU - Kozo SAKAWA
AU - Takehiko KOBAYASHI
AU - Makoto ABO
AU - Chikao NAGASAWA
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E85-A
IS - 7
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - July 2002
AB - We investigate the relationship between microwave path-loss characteristics and line-of-sight (LOS) blocking in an urban environment with a low base-station antenna using LOS-blocking measurement equipment that we have developed. Changes in path loss, traffic conditions, and LOS-blocking caused by vehicles were measured simultaneously. It was found that path loss exhibits a Rayleigh distribution even in a LOS environment if the amount of traffic is such that LOS- blocking occurs for 80% of the time or more, but the other case path loss exhibits a Nakagami-Rice distribution. It was also found that ratio of coherent wave level to envelope level (c/r) depends heavily on rate of road traffic flow.
ER -