NDLI: Coverage estimation of downlink 64 QAM signal up to 20 MHz bandwidth based on field trial results of FH-OFDMA system

Content Provider	IEEE Xplore Digital Library
Author	Oguma, H. Kameda, S. Izuka, N. Asano, Y. Yamazaki, Y. Suematsu, N. Takagi, T. Tsubouchi, K.
Copyright Year	2010
Description	Author affiliation: Network System Development Department, Softbank Telecom, Tokyo, Japan (Izuka, N.; Asano, Y.; Yamazaki, Y.) \|\| Research Institute of Electrical Communication, Tohoku University, Sendai, Japan (Oguma, H.; Kameda, S.; Suematsu, N.; Takagi, T.; Tsubouchi, K.)
Abstract	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.
Starting Page	600
Ending Page	605
File Size	821452
Page Count	6
File Format	PDF
ISBN	9781424470044
e-ISBN	9781424470068
DOI	10.1109/ICCS.2010.5686529
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-11-17
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bandwidth Quadrature amplitude modulation Antennas Downlink Predictive models Wireless communication Power generation Field trial MBWA FH-OFDMA FLASH-OFDM
Content Type	Text

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