NDLI: OCDM: a new multicode CDM radio transmission system based on cyclic modified M-sequences-performance evaluation using prototype

Content Provider	IEEE Xplore Digital Library
Author	Harada, H.
Copyright Year	1999
Description	Author affiliation: Commun. Res. Lab., Minist. of Posts & Telecommun., Hikarino, Japan (Harada, H.)
Abstract	This paper presents the system configuration and the transmission performance of a new multicode CDM (code division multiplex) based high speed radio transmission prototype which can transmit 4.608 Mbps under AWGN and Rayleigh fading environment. The proposed multicode CDM transmission is based on a already proposed parallel transmission scheme using cyclic modified M-sequence CDM named as OCDM (orthogonal code division multiplex) and consists of a general-purpose RF unit, IF unit and baseband DSP (digital signal processing) unit. All the specified algorithm which realize the proposed transmitter and receiver is only programmed m the baseband unit. Moreover, the programmed algorithm consists of only a feedforward DSP configuration, and adopts a new code synchronization method and RAKE diversity technique. In this paper, moreover, the performance of the proposed system, in terms of the acquisition time and bit error rate (BER) has been evaluated under additive white Gaussian noise (AWGN), non-selective one path Rayleigh and double-spike Rayleigh fading channel by experimental measurement.
Starting Page	1819
Ending Page	1825
File Size	825862
Page Count	7
File Format	PDF
ISBN	0780355652
ISSN	10903038
DOI	10.1109/VETEC.1999.778350
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-05-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Code division multiplexing AWGN Digital signal processing Baseband Signal processing algorithms Bit error rate Prototypes Rayleigh channels Radio frequency Radio transmitters
Content Type	Text
Resource Type	Article

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