Title :
Generalized precoded block-spread CDMA
Author_Institution :
Toshiba Telecommun. Res. Lab., Bristol, UK
fDate :
7/1/2009 12:00:00 AM
Abstract :
A novel block-spread code-division multiple access (BS-CDMA) framework is presented whereby user-specific, channel-independent precoding is employed along with special spreading codes to ensure multi-user interference free reception with maximum user load. This framework is presented in a general form, from which other BS-CDMA techniques can be derived. Finally, it is shown that specific precoder and spreading code designs facilitate low-complexity frequency-domain equalization at the receiver.
Keywords :
block codes; channel coding; code division multiple access; multiuser channels; precoding; BS-CDMA framework; block-spread code-division multiple access; channel-independent precoding; low-complexity frequency-domain equalization; multiuser interference; precoded block-spread CDMA; receiver; Communications Society; Frequency synchronization; Interference; Multiaccess communication; Quadrature phase shift keying; Spread spectrum communication; Transmitters; Code-division multiple access, multi-user interference, frequency-domain equalization;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2009.07.070216