Title
Multi-tone CDMA design for arbitrary frequency offsets using orthogonal code multiplexing at the transmitter and a tunable receiver
Abstract
The authors propose a new multi-tone (MT) code division multiple access (CDMA) design which has a superior bit error rate (BER) performance than conventional MT CDMA in the presence of frequency offset. The design involves multiplexing of Walsh codes onto the sub-carriers in conjunction with double differential modulation. To exploit the full potential of the design a partial correlation receiver has been proposed. Depending on the signal-to-noise ratio (SNR) and frequency offset it is possible to tune this receiver for the best possible performance. The simulated BER performance of the proposed system has been found to be better than MT CDMA for small as well as large frequency offsets for both single and multi-user systems in additive white Gaussian noise (AWGN) and Rayleigh fading channels.
Year
DOI
Venue
2011
10.1049/iet-com.2010.0599
Communications, IET
Keywords
Field
DocType
AWGN channels,Rayleigh channels,channel spacing,code division multiple access,radio receivers,radio transmitters,AWGN,Rayleigh fading channel,additive white Gaussian noise channel,arbitrary frequency offset,bit error rate,multi user systems,multitone CDMA design,multitone code division multiple access,orthogonal code multiplexing,radio transmitter,tunable receiver
Rayleigh fading,Frequency offset,Computer network,Modulation,Multiplexing,Code division multiple access,Hadamard code,Additive white Gaussian noise,Mathematics,Bit error rate
Journal
Volume
Issue
ISSN
5
15
1751-8628
Citations 
PageRank 
References 
1
0.34
9
Authors
2
Name
Order
Citations
PageRank
Girish Manglani170.84
Ajit Kumar Chaturvedi26311.37