Presentation 2002/2/28
Forward Link Broadband OFCDM Packet Wireless Access Achieving Peak Throughput of 100 Mbps
Hiroyuki Atarashi, Noriyuki Maeda, Sadayuki Abeta, Mamoru Sawahashi,
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Abstract(in English) This paper proposed a basic air interface in physical layer with broadband Orthogonal Frequency and Code Division Multiplexing (OFCDM) employing 101.5 MHz bandwidth (the number of sub-carriers is 768, the sub-carrier frequency spacing is 13 1.836 kHz), in order to achieve peak throughput of more than 100 Mbps in the forward link. By employing the radio link parameters such as the frame format of 0.5 msec length employing QPSK data modulation, Turbo coding with the coding rate of 3/4, and the 15 code-multiplexed channels whose spreading factor are 16, the peak throughout of 103.68 Mbps is realized. Simulation results demonstrated that the OFCDM using the above frame format with 2-branch antenna diversity reception achieves the average packet error rate (PER) = 10^<-2> at the average received E_b/N_0 = 7.6 dB in a broadband multipath fading channel (the exponential decayed 12-path, the maximum multipath delay time of 1.30 μsec, the maximum Doppler frequency f_D = 20 Hz). Furthermore, even in a fast fading channel, such as f_D = 400 Hz (e.g., the corresponding moving speed of approximately 80 km/h for the carrier frequency of 5 GHz), the peak throughput of more than 100 Mbps is realizable, where the corresponding average received E_b/N_0 = 10.6 dB for achieving the average PER 10^<-2>.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Broadband packet wireless access / OFCDM / Forward link / Peak throughput / 100-Mbps transmission
Paper # MoMuC2001-89
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Committee MoMuC
Conference Date 2002/2/28(1days)
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Registration To Mobile Multimedia Communications(MoMuC)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Forward Link Broadband OFCDM Packet Wireless Access Achieving Peak Throughput of 100 Mbps
Sub Title (in English)
Keyword(1) Broadband packet wireless access
Keyword(2) OFCDM
Keyword(3) Forward link
Keyword(4) Peak throughput
Keyword(5) 100-Mbps transmission
1st Author's Name Hiroyuki Atarashi
1st Author's Affiliation Wireless Laboratories, NTT DoCoMo, Inc.()
2nd Author's Name Noriyuki Maeda
2nd Author's Affiliation Wireless Laboratories, NTT DoCoMo, Inc.
3rd Author's Name Sadayuki Abeta
3rd Author's Affiliation Wireless Laboratories, NTT DoCoMo, Inc.
4th Author's Name Mamoru Sawahashi
4th Author's Affiliation Wireless Laboratories, NTT DoCoMo, Inc.
Date 2002/2/28
Paper # MoMuC2001-89
Volume (vol) vol.101
Number (no) 686
Page pp.pp.-
#Pages 6
Date of Issue