TY - GEN
T1 - Coverage estimation of downlink 64 QAM signal up to 20 MHz bandwidth based on field trial results of FH-OFDMA system
AU - Oguma, H.
AU - Kameda, S.
AU - Izuka, N.
AU - Asano, Y.
AU - Yamazaki, Y.
AU - Suematsu, N.
AU - Takagi, T.
AU - Tsubouchi, K.
PY - 2010
Y1 - 2010
N2 - In this paper, we report on a mobile broadband wireless access (MBWA) system field trial with Fast Low-latency Access with Seamless Handoff Orthogonal Frequency Division Multiplexing (FLASH-OFDM), which was carried out at Sendai city in Japan. This paper describes coverage estimates of an downlink 64 quadrature amplitude modulation (QAM) signal under the condition of constant base-station output power when the signal bandwidth is up to 20.48 MHz. The estimates are based on the field trial results of 1.28 MHz signal bandwidth. The coverage estimates based on a propagation model are also discussed. The estimation results show that wider signal bandwidth yields narrower coverage area. 64 QAM can be used within 90 %, 80 %, 65 %, and 50 % of the field trial area when the signal bandwidths are 2.56 MHz, 5.12 MHz, 10.24 MHz, and 20.48 MHz, respectively. We consider that the downlink 64 QAM signal is useful to provide a broadband wireless data communication service to users in an urban area even if the signal bandwidth is 20 MHz.
AB - In this paper, we report on a mobile broadband wireless access (MBWA) system field trial with Fast Low-latency Access with Seamless Handoff Orthogonal Frequency Division Multiplexing (FLASH-OFDM), which was carried out at Sendai city in Japan. This paper describes coverage estimates of an downlink 64 quadrature amplitude modulation (QAM) signal under the condition of constant base-station output power when the signal bandwidth is up to 20.48 MHz. The estimates are based on the field trial results of 1.28 MHz signal bandwidth. The coverage estimates based on a propagation model are also discussed. The estimation results show that wider signal bandwidth yields narrower coverage area. 64 QAM can be used within 90 %, 80 %, 65 %, and 50 % of the field trial area when the signal bandwidths are 2.56 MHz, 5.12 MHz, 10.24 MHz, and 20.48 MHz, respectively. We consider that the downlink 64 QAM signal is useful to provide a broadband wireless data communication service to users in an urban area even if the signal bandwidth is 20 MHz.
KW - FH-OFDMA
KW - Field trial
KW - FLASH-OFDM
KW - MBWA
UR - http://www.scopus.com/inward/record.url?scp=79851502733&partnerID=8YFLogxK
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U2 - 10.1109/ICCS.2010.5686529
DO - 10.1109/ICCS.2010.5686529
M3 - Conference contribution
AN - SCOPUS:79851502733
SN - 9781424470068
T3 - 12th IEEE International Conference on Communication Systems 2010, ICCS 2010
SP - 600
EP - 605
BT - 12th IEEE International Conference on Communication Systems 2010, ICCS 2010
T2 - 12th IEEE International Conference on Communication Systems 2010, ICCS 2010
Y2 - 17 November 2010 through 19 November 2010
ER -