An Investigation on Efficient Spreading Codes for Transmitter Based Techniques to Mitigate MAI and ISI in TDD/CDMA Downlink
We investigate efficient spreading codes for transmitter based techniques of code division multiple access (CDMA) systems. The channel is considered to be known at the transmitter which is usual in a time division duplex (TDD) system where the channel is assumed to be the same on uplink and downlink. For such a TDD/CDMA system, both bitwise and blockwise multiuser transmission schemes are taken up where complexity is transferred to the transmitter side so that the receiver has minimum complexity. Different spreading codes are considered at the transmitter to spread the signal efficiently over the entire spectrum. The bit error rate (BER) curves portray the efficiency of the codes in presence of multiple access interference (MAI) as well as inter symbol interference (ISI).
[1] D. R. Anderson and P. A. Wintz, "Analysis of a spread-spectrum
multiple-access system with a hard limiter," IEEE Trans. Commun., vol.
COM-17, pp. 285-290, Mar. 1969.
[2] M. B. Pursley, "Performance evaluation for phase-coded spreadspectrum
multiple-access communication - part I: system analysis,"
IEEE Trans. Commun., vol. COM-25, pp. 795-799, April 1977.
[3] S. Moshavi, "Multiuser detection for DS-CDMA communications,"
IEEE Communications Magazine, pp.124-136, Oct. 1996.
[4] Z. Zvoran, "Combined multiuser detection and diversity reception for
wireless CDMA systems," IEEE Trans. Vehicular Tech., vol. 45, no. 1,
pp. 205-211, Feb. 1996.
[5] Z. Zvoran and D. Brady, "Suboptimal multiuser detector for frequencyselective
Rayleigh fading synchronous CDMA channels," IEEE Trans.
Commun., vol. 43, no. 3, pp. 154-157, Mar. 1995.
[6] M. Brandt-Pearce and A. Dharap, "Transmitter-based multiuser interference
rejection for the down-link of a wireless CDMA system in a
multipath environment," IEEE J. Select. Areas Commun., vol. 18, no. 3,
pp. 407-417, Mar. 2000.
[7] A. Mitra, "An adaptive negative feedback controller for indoor wireless
communications," in Proc. National Conf. on Comm. (NCC-07), I.I.T.
Kanpur, India, Jan. 2007, pp. 382-386.
[8] A. Mitra, "On pseudo-random and orthogonal binary spreading sequences,"
Int. J. Info. Tech., vol. 4, no. 2, pp. 137-144, Sept. 2007.
[9] M. Meurer et. al., "Joint transmission: advantageous downlink concept
for CDMA mobile radio systems using time division duplexing," IEE
Electronics Letters, vol. 36, pp. 900-901, May 2000.
[10] A. Papathanassiou et. al., "A novel multiuser transmission scheme
requiring no channel estimation and no equalization at the mobile
stations for the downlink of TD-CDMA operating in the TDD mode,"
in Proc. IEEE Vehicular Tech. Conf. Fall 2000, Mar. 2000, pp. 203-210.
[11] A. N. Barreto and G. Fettweis, "Capacity increase in the downlink of
spread spectrum systems through joint signal precoding," Proc. IEEE
Int. Conf. on Communications (ICC), May 2001, vol. 4, pp. 1142-1146.
[12] R. Esmailzadeh and M. Nakagawa, "Pre-rake diversity combination for
direct sequence spread spectrum communications systems," in Proc.
IEEE Int. Conf. on Communications (ICC), Geneva 1993, vol. 1, pp.
463-467.
[13] R. Esmailzadeh, E. Sourour and M. Nakagawa, "Pre-rake diversity
combining in time division duplex CDMA mobile communications,"
IEEE Trans. Vehicular Tech., vol. 48, no. 3, pp. 795-801, May 1999.
[14] S. Georgoulis and D. G. M. Cruickshank, "Pre-equalization, transmitter
precoding and joint transmission techniques for time division duplex
CDMA," IEE 3G 2001 Conf. Mobile Comm. Technologies, Mar. 2001,
pp. 257-261.
[15] T. Aboulnasr and K. Mayyas, "A robust variable step-size LMS-type
algorithm: analysis and simulations," IEEE Trans. Signal Processing,
vol. 45, no. 3, pp. 631-639, Mar. 1997.
[16] K. H. Karkkainen, "Mean-square cross-correlation as a performance
measure for spreading code families," in Proc. IEEE 2nd Int. Symp.
Spread Spectrum Tech. and App. (ISSSTA), Dec. 1992, pp.147-150.
[17] I. Oppermann and B. S. Vucetic, "Complex spreading sequences with a
wide range of correlation properties," IEEE Trans. Commun., vol. COM-
45, pp. 365-375, March 1997.
[18] B. Wysocki and T. A. Wysocki, "Orthogonal Binary
Sequences with Wide Range of Correlation Proper ties,"
School of ECTE, Univ. of Wollongong, Australia.(Online)
Available:www.elec.uow.edu.au/sta/wysocki/publications/C5.pdf.
[1] D. R. Anderson and P. A. Wintz, "Analysis of a spread-spectrum
multiple-access system with a hard limiter," IEEE Trans. Commun., vol.
COM-17, pp. 285-290, Mar. 1969.
[2] M. B. Pursley, "Performance evaluation for phase-coded spreadspectrum
multiple-access communication - part I: system analysis,"
IEEE Trans. Commun., vol. COM-25, pp. 795-799, April 1977.
[3] S. Moshavi, "Multiuser detection for DS-CDMA communications,"
IEEE Communications Magazine, pp.124-136, Oct. 1996.
[4] Z. Zvoran, "Combined multiuser detection and diversity reception for
wireless CDMA systems," IEEE Trans. Vehicular Tech., vol. 45, no. 1,
pp. 205-211, Feb. 1996.
[5] Z. Zvoran and D. Brady, "Suboptimal multiuser detector for frequencyselective
Rayleigh fading synchronous CDMA channels," IEEE Trans.
Commun., vol. 43, no. 3, pp. 154-157, Mar. 1995.
[6] M. Brandt-Pearce and A. Dharap, "Transmitter-based multiuser interference
rejection for the down-link of a wireless CDMA system in a
multipath environment," IEEE J. Select. Areas Commun., vol. 18, no. 3,
pp. 407-417, Mar. 2000.
[7] A. Mitra, "An adaptive negative feedback controller for indoor wireless
communications," in Proc. National Conf. on Comm. (NCC-07), I.I.T.
Kanpur, India, Jan. 2007, pp. 382-386.
[8] A. Mitra, "On pseudo-random and orthogonal binary spreading sequences,"
Int. J. Info. Tech., vol. 4, no. 2, pp. 137-144, Sept. 2007.
[9] M. Meurer et. al., "Joint transmission: advantageous downlink concept
for CDMA mobile radio systems using time division duplexing," IEE
Electronics Letters, vol. 36, pp. 900-901, May 2000.
[10] A. Papathanassiou et. al., "A novel multiuser transmission scheme
requiring no channel estimation and no equalization at the mobile
stations for the downlink of TD-CDMA operating in the TDD mode,"
in Proc. IEEE Vehicular Tech. Conf. Fall 2000, Mar. 2000, pp. 203-210.
[11] A. N. Barreto and G. Fettweis, "Capacity increase in the downlink of
spread spectrum systems through joint signal precoding," Proc. IEEE
Int. Conf. on Communications (ICC), May 2001, vol. 4, pp. 1142-1146.
[12] R. Esmailzadeh and M. Nakagawa, "Pre-rake diversity combination for
direct sequence spread spectrum communications systems," in Proc.
IEEE Int. Conf. on Communications (ICC), Geneva 1993, vol. 1, pp.
463-467.
[13] R. Esmailzadeh, E. Sourour and M. Nakagawa, "Pre-rake diversity
combining in time division duplex CDMA mobile communications,"
IEEE Trans. Vehicular Tech., vol. 48, no. 3, pp. 795-801, May 1999.
[14] S. Georgoulis and D. G. M. Cruickshank, "Pre-equalization, transmitter
precoding and joint transmission techniques for time division duplex
CDMA," IEE 3G 2001 Conf. Mobile Comm. Technologies, Mar. 2001,
pp. 257-261.
[15] T. Aboulnasr and K. Mayyas, "A robust variable step-size LMS-type
algorithm: analysis and simulations," IEEE Trans. Signal Processing,
vol. 45, no. 3, pp. 631-639, Mar. 1997.
[16] K. H. Karkkainen, "Mean-square cross-correlation as a performance
measure for spreading code families," in Proc. IEEE 2nd Int. Symp.
Spread Spectrum Tech. and App. (ISSSTA), Dec. 1992, pp.147-150.
[17] I. Oppermann and B. S. Vucetic, "Complex spreading sequences with a
wide range of correlation properties," IEEE Trans. Commun., vol. COM-
45, pp. 365-375, March 1997.
[18] B. Wysocki and T. A. Wysocki, "Orthogonal Binary
Sequences with Wide Range of Correlation Proper ties,"
School of ECTE, Univ. of Wollongong, Australia.(Online)
Available:www.elec.uow.edu.au/sta/wysocki/publications/C5.pdf.
@article{"International Journal of Electrical, Electronic and Communication Sciences:59139", author = "Abhijit Mitra and C. Ardil", title = "An Investigation on Efficient Spreading Codes for Transmitter Based Techniques to Mitigate MAI and ISI in TDD/CDMA Downlink", abstract = "We investigate efficient spreading codes for transmitter based techniques of code division multiple access (CDMA) systems. The channel is considered to be known at the transmitter which is usual in a time division duplex (TDD) system where the channel is assumed to be the same on uplink and downlink. For such a TDD/CDMA system, both bitwise and blockwise multiuser transmission schemes are taken up where complexity is transferred to the transmitter side so that the receiver has minimum complexity. Different spreading codes are considered at the transmitter to spread the signal efficiently over the entire spectrum. The bit error rate (BER) curves portray the efficiency of the codes in presence of multiple access interference (MAI) as well as inter symbol interference (ISI).
", keywords = "Code division multiple access, time division duplex,transmitter technique, precoding, pre-rake, rake, spreading code.", volume = "2", number = "12", pages = "2793-8", }
