Use of these
materials is subject to copyright by:
University of
California at Riverside (UCR)
World Scientific and Engineering Society Press
Korean Institute of Communications Sciences (KICS)
The Institute of Electrical and Electronics
Engineers, Inc. (IEEE)
The European Association for Speech, Signal and Image Processing (EURASIP)
Theses
[B1].
Z. Xu, and M. K.
Tsatsanis, “Low Complexity Methods for Blind Estimation of Up-link Multipath
Channels in Long Code CDMA Communications,” in: Nikos E. Mastorakis,
editor, “Recent Advances in Signal Processing and Communications”, pp.
95-100, World Scientific and Engineering Society Press, Athens, Greece, 1999.
[B2].
Z. Xu, “Trends
in Ultrawideband Transceiver Design”, Chapter 7 in Ultra-Wideband
Wireless Communications and Networks, S. Shen, M. Guizani, R. C. Qiu, and T. Le-Ngoc (editors), John
Wiley & Sons, Hoboken, NJ, 2006.
[T1].
Z. Xu and B. M.
Sadler, “Transmitted reference ultra wideband transceivers for multiuser
communication,” Army Research Laboratory Technical Report, ARL-TR-3708,
January 2006. .pdf
[J1]
F. Sun, Victor O. K. Li, Z. Diao, and Z. Xu,
“Medium access control with physical layer assisted link differentiation,” IEEE
Trans. on Vehicular Technology,
2008.
[J2]
P. Liu and Z. Xu, “Blind MMSE-constrained multiuser detection,” IEEE
Trans. on Vehicular Technology, vol.
57, no. 1, pp. 608-615, January 2008. .pdf
[J3]
Z. Xu and B. M. Sadler, “Time delay
estimation bounds in convolutive random channels,” IEEE Journal of Selected
Topics in Signal Processing: Special Issue on Performance Limits of Ultra-Wideband
Systems, vol. 1, no. 3, pp. 418-430, October 2007.
.pdf
[J4]
J. Tang and Z. Xu, “A novel modulation diversity
assisted ultra-wideband communication system,” IEEE Trans. on Signal Processing,
vol. 55, no. 8, pp. 4227-4240,
August 2007. .pdf
[J5]
J. Tang, Z. Xu, and B. M. Sadler, “Performance analysis of b-bit digital receivers for TR-UWB
systems with inter-pulse interference,” IEEE
Trans. on Wireless Communications, vol. 6, no. 2, pp. 494-505, February
2007. .pdf
[J6]
Z. Xu and J. Tang, “Blind channel
estimation in aperiodic time hopping ultra-wideband
communications,” IEEE Trans. on Signal Processing, vol.
54, no. 6, Part 1, pp. 2333-2346, June 2006. .pdf
[J7]
Z. Xu and B. M. Sadler, “Multiuser transmitted reference ultra-wideband
communication systems,” IEEE Journal on Selected Areas in Communications: Special
Issue on Ultra Wideband Wireless Communications - Theory and Applications, vol. 24, no. 4, Part 1, pp. 766-772, April 2006.
.pdf
[J8]
P. Liu and Z. Xu, “POR-based channel estimation for UWB communications,”
IEEE Trans. on Wireless Communications, vol. 4, no. 6, pp. 2968-2982,
November 2005. .pdf
[J9]
Z. Xu, P. Liu and J. Tang, “A
subspace approach to blind multiuser detection for ultra-wideband communication
systems,” EURASIP Journal on Applied Signal Processing: Special Issue on UWB
- State of the Art, vol. 2005, no. 3, pp. 413-425, March 2005. .pdf
[J10]
Z. Xu, J. Tang and P. Liu,
“Multiuser channel estimation for ultra-wideband systems using up to the second
order statistics,” EURASIP Journal on Applied Signal Processing: Special
Issue on UWB - State of the Art, vol. 2005, no. 3, pp. 273-286, March 2005.
.pdf
[J11]
Z. Xu, “Effects of imperfect blind
channel estimation on performance of linear CDMA receivers,” IEEE Trans. on
Signal Processing, vol. 52, no. 10, pp. 2873-2884,
October 2004. .pdf
[J12] Z.
Xu and X. Wang, “Large-sample performance of blind and group-blind multiuser
detectors: a perturbation perspective,” IEEE Trans. on Information Theory,
vol. 50, no. 10, pp. 2389-2401, October
2004. .pdf
[J13]
P. Liu and Z. Xu, “Joint
performance study of channel estimation and multiuser detection for uplink
long-code CDMA systems,” EURASIP Journal on Wireless Communications and
Networking: Special Issue on Innovative Signal Transmission and Detection
Techniques for Next Generation Cellular CDMA System, vol. 2004, no. 1, pp.
98-112, August 2004. .pdf
[J14]
Z. Xu, “Statistical performance of
a data-based covariance estimator,” IEEE Trans. on Vehicular Technology,
vol. 53, no. 3, pp. 939-943, May 2004. .pdf
[J15]
Z. Xu, P. Liu and X. Wang, “Blind
multiuser detection: from MOE to subspace methods,” IEEE Trans. on Signal
Processing, vol. 52, no. 2, pp. 510-524, February 2004. .pdf
[J16]
Z. Xu, P. Liu and
M. Zoltowski, “Diversity assisted channel estimation
and multiuser detection for downlink CDMA with long spreading codes,” IEEE
Trans. on Signal Processing, vol. 52, no. 1,
pp. 190-201, January 2004. .pdf
[J17]
Z. Xu and P. Liu,
“Blind multiuser detection by kurtosis maximization/minimization,” IEEE
Signal Processing Letters, vol. 11, no. 1, pp. 1-4, January
2004. .pdf
[J18]
C. Kim, Z. Xu and H. J. Kim,
“Sliding multiple phase differential detection of trellis-coded MDPSK-OFDM,” IEICE
Trans. Communications: Joint Special Issue on Recent Progress in
Optoelectronics and Communications, vol. E86-B, no. 5, pp. 1591-1600, May
2003. . pdf
[J19]
Z. Xu, “On the
second-order statistics of the weighted sample covariance matrix,” IEEE
Trans. on Signal Processing, vol. 51, no. 2, pp. 527-534, February 2003. .pdf
[J20]
Z. Xu and P. Liu,
“Code constrained blind detection of CDMA signals in multipath channels,” IEEE
Signal Processing Letters, vol. 9, no. 12, pp. 389-392, December 2002. .pdf
[J21] Z. Xu, “Further study on MOE-based multiuser detection
in unknown multipath,” EURASIP Journal on Applied Signal Processing:
Multiuser Detection and Blind Estimation, pp. 1377-1386, December 2002. .pdf
[J22] Z. Xu, “Perturbation analysis for subspace
decomposition with applications in subspace-based algorithms,” IEEE Trans.
on Signal Processing, vol. 50, no. 11, pp. 2820-2830, November 2002. .pdf
[J23] Z. Xu, “Performance analysis of blind channel
estimation for precoded multiuser systems,” Journal
of Communications and Networks, vol. 4, no. 3, pp. 189-198, September 2002.
.pdf
[J24] P. Ahn, C. Kim, H. Kim and
Z. Xu, “Trellis-coded pi/8 shift 8PSK-OFDM with sliding multiple symbol
detection,” The Korean Institute of Maritime Information & Communication
Science (KIMICS), vol. 6, no. 4, pp. 535-543, August 2002.
[J25] Z. Xu, “Asymptotic performance of subspace methods for
synchronous multirate CDMA systems,” IEEE Trans.
on Signal Processing, vol. 50, no. 8, pp. 2015-2026, August 2002. .pdf
[J26] Z. Xu, “Low complexity multiuser channel estimation
with aperiodic spreading codes,” IEEE Trans. on
Signal Processing, vol. 49, no. 11, pp. 2813-2822, November 2001. .pdf
[J27] Z. Xu, “Improved constraint for multipath mitigation
in constrained MOE multiuser detection,” Journal of Communications and
Networks: Signal Processing for Multiuser Wireless Communications, vol. 3,
no. 3, pp. 249-256, September 2001. .pdf
[J28] Z. Xu, “Asymptotically near-optimal blind estimation
of multipath CDMA channels,” IEEE Trans. on Signal Processing, vol. 49,
no. 9, pp. 2003-2017, September 2001. .pdf
[J29] Z. Xu, “Blind identification of co-existing
synchronous and asynchronous users for CDMA systems,” IEEE Signal Processing
Letters, vol. 8, no. 7, pp. 212-214, July 2001. .pdf
[J30] Z. Xu and M. Tsatsanis, “Blind adaptive algorithms for
minimum variance CDMA receivers,” IEEE Trans. on Communications, vol.
49, no. 1, pp. 180-194, January 2001. .pdf
[J31] M. Tsatsanis and Z. Xu, “Pilot symbol assisted
modulation in frequency selective fading wireless channels,'' IEEE Trans. on
Signal Processing, vol. 48, no. 8, pp. 2353-2365, August 2000. .pdf
[J32] Z. Xu and M. Tsatsanis, “Blind channel estimation for
long code multiuser CDMA systems,” IEEE Trans. on Signal Processing,
vol. 48, no. 4, pp. 988-1001, April 2000. .pdf
[J33] M. Tsatsanis and Z. Xu, “Constrained optimization
methods for direct blind equalization,” IEEE Journal on Selected Areas in
Communications (special issue on wireless communications series), vol. 17,
no. 3, pp. 424-433, March 1999. .pdf
[J34] Z. Xu and M. Tsatsanis, “Adaptive minimum variance
methods for direct blind multichannel equalization,” EURASIP Signal
Processing, vol. 73, no. 1-2, pp. 125-138, February 1999. .pdf
[J35] M. Tsatsanis and Z. Xu, “Performance analysis of
minimum variance CDMA receivers,” IEEE Trans. on Signal Processing, vol.
46, no. 11, pp. 3014-3022, November 1998. .pdf
[J36] Chen Gelin, Hu Sizheng, Luo Shuyun,
Zhang Keqian, Shen Zhongming and Xu Zhengyuan, “The study on a 150MHz
intelligent reflection scanning acoustic microscope and its image processing
function,” Journal of Applied Sciences, vol. 11, no. 3, pp. 226-234,
July 1993 (in Chinese).
[J37] Chen Gelin, Hu Sizheng, Luo Shuyun,
Zhang Keqian, Shen Zhongming and Xu Zhengyuan, “A 150MHz intelligent
reflection scanning acoustic microscope and its image processing,” Applied
Acoustics, vol. 11, no. 3, pp. 6-11, May 1992 (in Chinese).
[J38]
Chen Gelin, Hu Sizheng, Luo Shuyun, Zhang Keqian, Shen Zhongming
and Xu Zhengyuan, “The intelligent scanning acoustic microscope type THSAM-5
and its applications,” Nondestructive Testing, vol. 14, no. 5, pp.
121-124, May 1992 (in Chinese).
[C1]
Z. Xu, N. Liu, and B. M.
Sadler, “A simple closed-form linear source localization algorithm,” Proc.
of Milcom, Orlando, Florida,
October 29-31, 2007. .pdf
[C2]
Z. Xu and B. M. Sadler,
“Time delay estimation bounds in wideband random channels,” Proc. of Milcom,
[C3]
Z. Xu, G. Chen, F. Abou-Galala, and M.
Leonardi, “Experimental performance
evaluation of non-line-of-sight ultraviolet communication systems,” Proc.
SPIE Photonics and Optics – Free Space Laser Communications VII, vol. 6709,
San Diego, CA, August 28-30, 2007. .pdf
[C4]
P. Liu and Z. Xu, “Constrained cross-cumulant based multiuser detection for uplink CDMA,” Proc.
IEEE Workshop on Statistical Signal Processing (SSP),
[C5]
F. Sun, V. O. K.
Li, Z. Diao, and Z. Xu, “Contention-based medium
access control with physical layer assisted link differentiation,” Prof.
IEEE ICC, Glasgow, Scotland, June 24-28, 2007. .pdf
[C6]
Z. Xu, “Approximate performance analysis of wireless ultraviolet
links,” Proc. of IEEE Intl. Conf. on Acoustics, Speech, and Signal Proc., Honolulu, Hawaii, April 15-20, 2007. .pdf
[C7]
B. M. Sadler, L. Huang, and Z. Xu, “Ziv-Zakai
time delay estimation bound for ultra-wideband signal,” Proc. of IEEE Intl.
Conf. on Acoustics, Speech, and Signal Proc., Honolulu, Hawaii, April 15-20, 2007. .pdf
[C8]
F. Sun, V. O. K. Li, Z. Diao, and Z. Xu, “A
new cross-layer designed multipolling MAC protocol
over wireless LANs,” Prof. IEEE WCNC,
Hong Kong, China, March 11-15, 2007. .pdf
[C9]
Y. Li and Z. Xu, “Transmitted reference schemes for wireless optical
communications,” Prof. IEEE Globecom,
[C10] F. Sun, V. O. K. Li, Z. Diao,
and Z. Xu, “Medium access control with physical layer assisted loss
differentiation,” Prof. IEEE Globecom, San Francisco, CA, November 27-30, 2006. .pdf
[C11] Z. Xu, A. Swami and B. M. Sadler, “Performance study
of a high-rate multiuser
transmitted reference ultra-wideband transceiver,” Proc. of Milcom,
[C12] J. Tang and Z. Xu, “Performance study of a near-optimum modulation diversity assisted
ultra-wideband receiver,” Proc. of IEEE Intl. Conf. on Ultra-Wideband,
[C13] P. Liu, Z. Xu and B. M. Sadler, “Narrowband interference suppression of an MTR-UWB transceiver,” Proc. of
IEEE Radio and Wireless Symposium,
[C14] B. M. Sadler, Z. Xu and J. Tang, “Data detection performance of an MTR-UWB receiver in the presence
of timing errors,” Proc. of 37th Asilomar
Conf. on Signals, Systems, and Computers, Pacific Grove, CA, October
30-November 2, 2005 (invited). .pdf
[C15] L. Liu and Z. Xu, “Joint packet scheduling and channel allocation for wireless
communications,” Proc. of 37th Asilomar Conf. on Signals, Systems, and Computers, Pacific
Grove, CA, October 30-November 2, 2005. .pdf
[C16] Z. Xu, A. Swami and B. M.
Sadler, “A
multiuser transmitted reference UWB transceiver for high data rate
communication,” Proc. of Milcom, NJ, October 17-20, 2005. .pdf
[C17] Z.
Xu and B. M. Sadler, “Code aided near full rate multiuser TR-UWB systems,” Proc. of IEEE SPAWC,
[C18] J.
Tang, Z. Xu and B. M. Sadler, “Digital receiver for TR-UWB systems with inter-pulse
interference,”
Proc. of IEEE SPAWC,
[C19] Z.
Xu, B. M. Sadler and J. Tang, “Data detection for UWB transmitted reference systems
with inter-pulse interference,” Proc. of IEEE Intl. Conf. on
Acoustics, Speech, and Signal Proc., Philadelphia, PA, March 19-23, 2005. .pdf
[C20] J.
Tang and Z. Xu, “A novel modulation diversity assisted ultra wideband
communication system,” Proc. of IEEE Intl. Conf. on Acoustics, Speech, and Signal Proc., Philadelphia, PA, March 19-23, 2005. .pdf
[C21] P. Liu and Z. Xu, “Performance of POR multiuser
detection for UWB communications,” Proc.
of IEEE Intl. Conf. on Acoustics, Speech, and Signal Proc., Philadelphia, PA, March 19-23, 2005. .pdf
[C22] J.
Tang and Z. Xu, “Statistical performance of correlation-matching based channel
estimators for aperiodic time hopping UWB systems,” Proc. of IEEE Global Telecommunications Conference (Globecom),
[C23] Z.
Xu, “Regularization enhanced fast convergence for POR-based multiuser
detection,” Proc. of IEEE VTC Conf.,
[C24] Z.
Xu and L. Liu, “Power allocation for multi-band OFDM UWB communication
networks,” Proc. of IEEE VTC Conf.,
[C25] P.
Liu and Z. Xu, “POR channel estimation for UWB communications,” Proc. of IEEE 6th CAS Symposium on Emerging Technologies: Frontiers of
Mobile and Wireless Communication, pp.
25-28, Shanghai, China, May 31-June 2, 2004. .pdf
[C26] J.
Tang and Z. Xu, “Blind channel estimation in aperiodic
time hopping ultra-wideband systems,”
Proc. of IEEE 6th CAS Symposium on Emerging Technologies: Frontiers of Mobile
and Wireless Communication, pp. 337-340, Shanghai,
China, May 31-June 2, 2004. .pdf
[C27] Z.
Xu, “Performance of CDMA receivers under imperfect channel estimation”, Proc. of IEEE Intl. Conf. on Acoustics, Speech, and Signal Proc., vol. IV, pp. 969-972, Quebec, Canada,
May 17-21,
2004. .pdf
[C28] P.
Liu and Z. Xu, “Temporal diversity assisted blind channel estimation for
downlink long-code CDMA systems”, Proc. of IEEE Intl. Conf. on
Acoustics, Speech, and Signal Proc., vol.
IV, pp. 953-956, Quebec, Canada,
May 17-21,
2004. .pdf
[C29] J.
Tang and Z. Xu, “Multidimensional orthogonal design for ultra-wideband
downlink”, Proc. of IEEE Intl. Conf. on
Acoustics, Speech, and Signal Proc., vol.
IV, pp. 541-544, Quebec, Canada,
May 17-21,
2004. .pdf
[C30] P.
Liu, Z. Xu and J. Tang, “Minimum variance multiuser detection for impulse radio
UWB systems,” Proc. of IEEE Conf. on
Ultra Wideband Systems and Technologies, pp. 111-115,
[C31] P.
Liu, Z. Xu and J. Tang, “Subspace multiuser receivers for UWB communication
systems,” Proc. of IEEE Conf. on
Ultra Wideband Systems and Technologies, pp. 116-120,
[C32] J.
Tang, Z. Xu and P. Liu, “Mean and covariance based estimation of multiple
access UWB channels,” Proc. of IEEE Conf. on
Ultra Wideband Systems and Technologies, pp. 458-462,
[C33] Z.
Xu and P. Liu, “A subspace approach to blind estimation of ultra-wideband
channels,” Proc. of 37th Asilomar Conf. on Signals, Systems, and Computers, pp. 1249-1253, Pacific Grove,
CA, November 10-12, 2003. .pdf
[C34] Z.
Xu, “Blind channel estimation via subspace approximation,” Proc. of 37th Asilomar Conf. on
Signals, Systems, and Computers, pp. 1653-1657, Pacific Grove, CA, November 10-12, 2003. .pdf
[C35] Z. Xu, P. Liu and J. Tang,
“Blind multiuser detection for impulse radio UWB systems,” Proc. of IEEE
Topical Conference on Wireless Communication Technology, pp. s27p08,
[C36] Z. Xu, J. Tang and P. Liu,
“Blind channel estimation for multiple access UWB communications based on
periodic time hopping and pulse-rate modeling,” Proc. of IEEE Topical
Conference on Wireless Communication Technology, pp. s27p09, Honolulu,
Hawaii, October 15-17, 2003. .pdf
[C37]
P. Liu and Z. Xu
“Blind adaptive multiuser detection for uplink long-code CDMA
systems,'' Proc. of IEEE Workshop on
Statistical Signal Processing, pp. 329-332, St. Louis, Missouri,
Sept. 28-Oct. 1, 2003. .pdf
[C38]
Z. Xu, J. Tang
and P. Liu “Frequency-domain
estimation of multiple access ultra-wideband signals,” Proc. of IEEE Workshop on Statistical Signal Processing,
pp. 65-68, St.
Louis, Missouri, Sept. 28-Oct. 1, 2003. .pdf
[C39] N. Yu and Z. Xu, “On the second-order
statistics of the sample covariance,” Proc.
of 14th IEEE International Symposium on Personal Indoor and Mobile Radio
Communication, vol. 2, pp. 2953-2957, Beijing, China, September 7-10, 2003. .pdf
[C40] P. Liu, Z. Xu and N. Yu, “On performance study of data
based multiuser detection methods for uplink
long-code cdma systems,” Proc.
of 14th IEEE International Symposium on Personal Indoor and Mobile Radio
Communication, vol. 2, pp. 2910-2914, Beijing, China, September 7-10, 2003. .pdf
[C41] Z. Xu, P. Liu and N. Yu, “Performance of channel
estimation assisted linear multiuser receivers for downlink
CDMA systems with long spreading codes,” Proc.
of 14th IEEE International Symposium on Personal Indoor and Mobile Radio
Communication, vol. 2, pp. 2978-2982, Beijing, China, September 7-10, 2003. .pdf
[C42]
P. Liu and Z. Xu
“Linear multiuser detection for uplink long-code CDMA systems,” Proc. of IEEE Intl. Conf. on Acoustics, Speech,
and Signal Proc., vol. IV, pp. 97-100, Hong Kong, April
6-10, 2003. .pdf
[C43]
Y. Deng and Z. Xu
“Performance of a low-complexity downlink channel estimator for
long-code CDMA systems,” Proc. of IEEE
Intl. Conf. on Acoustics, Speech, and Signal Proc., vol. IV, pp. 117-120, Hong
Kong, April 6-10, 2003. .pdf
[C44]
P. Liu and Z. Xu
“A globally convergent CMA-based approach to blind multiuser detection,”
Proc. of 36th Asilomar Conf. on Signals, Systems, and
Computers, pp. 634-638, Pacific Grove, CA, November 3-6, 2002. .pdf
[C45] P. Liu and Z. Xu, “Channel estimation and multiuser
detection for long code CDMA,” Proc. of 36th Asilomar
Conf. on Signals, Systems, and Computers, pp. 1453-1457, Pacific Grove, CA,
November 3-6, 2002. .pdf
[C46] Z. Xu, P. Liu and X. Wang, “Towards closing the gap
between MOE and subspace methods,” Proc. of 36th Asilomar
Conf. on Signals, Systems, and Computers, pp. 689-693, Pacific Grove, CA,
November 3-6, 2002. .pdf
[C47] Z. Xu and P. Liu, “Kurtosis based
maximization/minimization approach to blind equalization for DS/CDMA systems in
unknown multipath,” Proc. of IEEE Intl. Conf. on Acoustics, Speech, and
Signal Proc., vol. III, pp. 2585-2588, Orlando, Florida, May 13-17, 2002. .pdf
[C48] P. Liu and Z. Xu, “Correlation matching in channel
estimation for multirate DS/CDMA,” Proc. of IEEE
Intl. Conf. on Acoustics, Speech, and Signal Proc., vol. III, pp.
2581-2584, Orlando, Florida, May 13-17, 2002. .pdf
[C49] T. Wang and Z. Xu, “Performance analysis of blind
channel estimation for precoded multirate
multiuser systems,” Proc. of IEEE Intl. Conf. on Acoustics, Speech, and
Signal Proc., vol. III, pp. 2741-2744, Orlando, Florida, May 13-17, 2002. .pdf
[C50] Z. Xu and T. Wang, “Blind detection of CDMA signals
based on Kalman filter,” Proc. of 35th Asilomar Conf. on Signals, Systems, and Computers, vol.
2, pp. 1545-1549, Pacific Grove, CA, November 5-7, 2001. .pdf
[C51] Z. Xu, “Perturbation study on MOE-based multiuser
detection,” Proc. of 35th Asilomar Conf. on
Signals, Systems, and Computers, vol. 2, pp. 1733-1737, Pacific Grove, CA,
November 5-7, 2001. .pdf
[C52] Z. Xu and D. Reitz, “Subspace-based channel estimation
for CDMA downlink with aperiodic spreading codes and
multiple subchannels,” Proc. of 35th Asilomar Conf. on Signals, Systems, and Computers, vol.
2, pp. 1728-1732, Pacific Grove, CA, November 5-7, 2001. .pdf
[C53] Z. Xu and P. Liu, “Code constrained CMA-based multirate multiuser detection,” Proc. of 35th Asilomar Conf. on Signals, Systems, and Computers, vol.
2, pp. 1455-1459, Pacific Grove, CA, November 5-7, 2001 (invited). .pdf
[C54] Z. Xu and P. Liu, “Constrained CMA-based multiuser
detection under unknown multipath,” Proc. of 12th IEEE International
Symposium on Personal Indoor and Mobile Radio Communication, pp. A21-25,
San Diego, CA, September 30-October 3, 2001. .pdf
[C55] Z. Xu, “Computationally efficient multiuser detection
for aperiodically spreading CDMA systems,” Proc.
of IEEE Intl. Conf. on Acoustics, Speech, and Signal Proc., vol. IV, pp.
2249-2252, Salt Lake City, Utah, May 7-11, 2001. .pdf
[C56] P. Liu and Z. Xu, “Convergence analysis of a new blind
equalization algorithm with M-ary PSK channel
inputs,” Proc. of IEEE Intl. Conf. on Acoustics, Speech, and Signal Proc.,
vol. IV, pp. 2529-2532, Salt Lake City, Utah, May 7-11, 2001. .pdf
[C57] Z. Xu, “Blind channel estimation for precoded variable bit-rate multiuser systems,” Proc. of
34th Asilomar Conf. on Signals, Systems, and
Computers, vol. 2, pp. 1273-1277, Pacific Grove, CA, October 29-November 1,
2000. .pdf
[C58] Z. Xu, “Improved constrained optimization method for
CDMA systems,” Proc. of 34th Asilomar Conf. on
Signals, Systems, and Computers, vol. 2, pp. 1293-1297, Pacific Grove, CA,
October 29-November 1, 2000. .pdf
[C59] Z. Xu, “Asymptotically optimal CDMA receiver: perfect
MAI cancellation,” Proc. of IEEE Wireless Communications and Networking
Conference, vol. 3, pp. 1496-1500,
[C60] Z. Xu, “New cost function for blind estimation of MPSK
signals,” Proc. of IEEE Wireless Communications and Networking Conference,
vol. 3, pp. 1501-1505, Chicago, IL, September 23-28, 2000. .pdf
[C61] M. Tsatsanis, Z. Xu and X. Lu, “Blind multiuser
detectors for dual rate DS-CDMA systems over frequency selective channels,”
Proc. of European Signal Processing Conference, vol. 2, pp. 631-634,
Tampere, Finland, September 5-8, 2000. .pdf
[C62] Z. Xu and P. Liu, “Demodulation of amplitude modulated
signals in the presence of multipath,” Proc. of 10th IEEE Workshop on
Statistical Signal and Array Processing, pp. 33-37, Pocono Manor,
Pennsylvania, August 14-16, 2000. .pdf
[C63] Z. Xu and P. Liu, “New criteria for blind equalization
of M-PSK signals,” Proc. of 10th IEEE Workshop on Statistical Signal and
Array Processing, pp. 692-696, Pocono Manor, Pennsylvania, August 14-16,
2000. .pdf
[C64] Z. Xu, “CDMA downlink channel estimation with unknown
random spreading codes,” Proc. of IEEE Intl. Conf. on Third Generation
Wireless Communications, pp. 313-318, San Francisco, CA, June 14-16, 2000. .pdf
[C65] Z. Xu, “Projection-based multiuser receiver over
frequency selective channels,” Proc. of Intl. Conf. on Information
Technology: Coding and Computing, pp. 92-97, Las Vegas, Nevada, March
27-29, 2000 (invited). .pdf
[C66] M. Tsatsanis and Z. Xu, “Adaptive blind interference
cancellation in CDMA systems,” Proc. of Global Telecommunications Conf.,
pp. 487-491,
[C67] Z. Xu and M. Tsatsanis, “Low complexity methods for
blind estimation of up-link multipath channels in long code CDMA
communications,” Proc. of 3rd IMACS International Multiconference
on: Circuits, Systems, Communications and Computers, pp. 95-100, Athens,
Greece, July 4-8, 1999 (invited). .pdf
[C68] Z. Xu and M. Tsatsanis, “On correlation matching
approaches for multipath parameter estimation in multiuser CDMA systems,” Proc.
of 2nd IEEE Workshop on Signal Processing Advances in Wireless Communications,
pp. 38-41, Annapolis, MD, May 9-12, 1999. .pdf
[C69] Z. Xu and M. Tsatsanis, “Blind channel estimation for
multiuser CDMA systems with long spreading codes,” Proc. of IEEE Intl. Conf.
on Acoustics, Speech, and Signal Proc., vol. 5, pp. 2531-2534, Phoenix,
Arizona, March 15-19, 1999. .pdf
[C70] Z. Xu and M. Tsatsanis, “Blind stochastic gradient
methods for optimal minimum variance CDMA receivers,” Proc. of 32nd Asilomar Conf. on Signals, Systems, and Computers, vol.
1, pp. 660-664, Pacific Grove, CA, Nov. 1-4, 1998. .pdf
[C71] M. Tsatsanis and Z. Xu, “Blind channel estimation for
CDMA systems with orthogonal modulation,” Proc. of SPIE's 43rd International
Symposium, pp. 16-25,
[C72] Z. Xu and M. Tsatsanis, “Adaptive minimum variance methods
for direct blind multichannel equalization,” Proc. of IEEE Intl. Conf. on
Acoustics, Speech, and Signal Proc., vol. IV, pp. 196-199, Seattle, WA, May
12-15, 1998. .pdf
[C73] M. Tsatsanis and Z. Xu, “Pilot symbol assisted
modulation in frequency selective fading wireless channels,” Proc. of 32nd
Conf. on Info. Sciences and Systems, vol. 2, pp. 636-641,
[C74] M. Tsatsanis and Z. Xu, “Constrained optimization
methods for blind equalization of multiple FIR channels,” Proc. of 31th Asilomar Conf. on Signals, Systems, and Computers,
vol.1, pp. 128-132, Pacific Grove, CA, Nov. 3-6, 1997 (invited). .pdf
[C75] M. Tsatsanis and Z. Xu, “Performance analysis of
minimum variance CDMA receivers,” Proc. of 13th Intl. Conf. on Digital
Signal Processing, pp. 379-382, Santorini,
Greece, July 2-4, 1997 (invited). .pdf
[C76] M. Tsatsanis and Z. Xu, “On minimum output energy CDMA
receivers in the presence of multipath,” Proc. of 31st Conf. on Info.
Sciences and Systems, pp. 724-729, Johns Hopkins Univ.,
[P1]
L. Huang, Z. Xu, and B. M. Sadler, “Simplified Ziv-Zakai
time delay estimation bound for ultra-wideband signals,” Workshop on Short-Range Ultra-Wideband Radio Systems, Organized by
University of Southern California, Santa Monica, California, April 11-12, 2006 (invited).
[P2]
B. M. Sadler, J. Tang, and Z. Xu, “Unified performance analysis for
ultra-wideband receivers with timing jitter,” Workshop on Short-Range Ultra-Wideband Radio Systems, Organized by
University of Southern California, Santa Monica, California, April 11-12, 2006 (invited).
[P3]
G. Fraidenraich, Z. Xu, and J. C. Cioffi, “Ultra-wideband channel
capacity under correlated multipath fading,” IEEE Communication Theory Workshop (CTW), Sedona, Arizona, May
20-23, 2007.