DocumentCode :
2091222
Title :
Coherent detection with reference-symbol based channel estimation for direct sequence CDMA uplink communications
Author :
Ling, Fuyun
Author_Institution :
Motorola, Inc., Schaumburg, IL, USA
fYear :
1993
fDate :
18-20 May 1993
Firstpage :
400
Lastpage :
403
Abstract :
A new coding/modulation arrangement for up-link direct-sequence code division multiple access (DS-CDMA) communication, which employs coherent detection with reference-symbol based channel estimation, is presented. It is shown that the required Eb/NO for this scheme is about 2 dB to 2.5 dB lower than non-coherent detection of Walsh coding with bit interleaving and about 1 dB to 1.3 dB lower than noncoherent detection with Walsh symbol interleaving over the entire range of practical vehicle speeds. A frequency domain analysis of this scheme is given
Keywords :
channel coding; code division multiple access; frequency-domain analysis; interleaved codes; pseudonoise codes; signal detection; spread spectrum communication; DS-CDMA; Walsh symbol interleaving; coherent detection; direct sequence CDMA uplink communications; frequency domain analysis; reference-symbol based channel estimation; Base stations; Channel estimation; Frequency domain analysis; Gas detectors; Interleaved codes; Modulation coding; Multiaccess communication; Personal communication networks; Vehicle detection; Vehicles;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Vehicular Technology Conference, 1993., 43rd IEEE
Conference_Location :
Secaucus, NJ
ISSN :
1090-3038
Print_ISBN :
0-7803-1267-8
Type :
conf
DOI :
10.1109/VETEC.1993.507496
Filename :
507496
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=2091222
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