Presentation	2003/2/28 Laboratory Experiment on OFCDM Broadband Wireless Access in Forward Link Hiroo Omori, Hiroyuki Atarashi, Kenichi Higuchi, Mamoru Sawahashi,
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Abstract(in English)	This paper presents laboratory experimental results on the packet error rate (PER) and thereby throughput, performance, above 100 Mbps employing OFCDM (Orthogonal Frequency and Code Division Multiplexing) broadband wireless access (96.5 MHz bandwidth, 768 sub-carriers, 1.0 msec frame length, pilot symbol-assisted coherent detection) in the forward link in a multipath fading channel. By utilizing the implemented OFCDM transceiver equipment, the PER performance of OFCDM with the frequency domain spreading and pilot symbol-assisted MMSE combining and that of OFDM (Orthogonal Frequency Division Multiplexing) without spreading are compared in a multipath fading channel, where the fading maximum Doppler frequency, f_D, and delay spread, σ, are the parameters. The experimental results elucidate that OFCDM (spreading factor, SF=4, number of multiplexed codes, C_=4) and OFDM achieve the almost same PER performance employing covolutional coding (channel coding rate, R=1/2) and 16QAM (or QPSK) data modulation, in a 6-path Rayleigh fading channel (f_D=20Hz, σ=0.043μsec), and they achieve the average throughput of 120.88 (58.86) Mbps at the average received signal energy per bit-to-background noise power spectrum density ratio (E_b/N_0) of 21 (14) dB.
Keyword(in Japanese)	(See Japanese page)
Keyword(in English)	broadband wireless access / OFCDM / OFDM / frequency domain spreading / MMSE combining
Paper #	SST2002-143,A・P2002-242,RCS2002-359,MoMuC2002-168,MW2002-250
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Conference Information
Committee	AP
Conference Date	2003/2/28(1days)
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Paper Information
Registration To	Antennas and Propagation (A・P)
Language	JPN
Title (in Japanese)	(See Japanese page)
Sub Title (in Japanese)	(See Japanese page)
Title (in English)	Laboratory Experiment on OFCDM Broadband Wireless Access in Forward Link
Sub Title (in English)
Keyword(1)	broadband wireless access
Keyword(2)	OFCDM
Keyword(3)	OFDM
Keyword(4)	frequency domain spreading
Keyword(5)	MMSE combining
1st Author's Name	Hiroo Omori
1st Author's Affiliation	Wireless Laboratories, NTT DoCoMo, Inc.()
2nd Author's Name	Hiroyuki Atarashi
2nd Author's Affiliation	Wireless Laboratories, NTT DoCoMo, Inc.
3rd Author's Name	Kenichi Higuchi
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	2003/2/28
Paper #	SST2002-143,A・P2002-242,RCS2002-359,MoMuC2002-168,MW2002-250
Volume (vol)	vol.102
Number (no)	673
Page	pp.pp.-
#Pages	6
Date of Issue