By Topic

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

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
Harada, H. ; Commun. Res. Lab., Minist. of Posts & Telecommun., Hikarino, Japan

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

Published in:

Vehicular Technology Conference, 1999 IEEE 49th  (Volume:3 )

Date of Conference:

Jul 1999