Dongmei Zhao, (Ph.D,
University of Waterloo)
Associate
Professor, P. Eng.

Department of Electrical and Computer Engineering
Research
areas
Dr. Zhao's research interests are in
the areas of wireless communication networks. Her current research activities
include the design and performance modeling of wireless mobile communications
networks, and emphasize on radio resource management, quality-of-service
provisioning, mobility management, access control and admission control.
My new book
Power Management and Performance Analysis
in Wireless Communication Networks,
SpringerBriefs in Computer Science, March 2012.
Link to the publisher (eBook available)
Read it online
Scholarly and professional activities
Teaching
Publications
1. M. Shi, Y. Jiang,
X. Shen, J.W. Mark, D. Zhao, and H. Rutagenwa, Authentication and billing for WLAN/cellular
networking interworking, Chapter 17, Handbook of Security and Networks, to be
published by World Scientific Publishing Co. in 2011.
2. D. Zhao, X. Shen and J. W. Mark, Connection admission control for
MC-CDMA systems supporting multi-rate services, Communications, Network
Security and Signal Processing, Editors V. Tarokh, V. Bhargava, and V. Poor, Kluwer
Academic Publishers, 2002.
1. W. Liu, D. Zhao,
and G. Zhu , End-to-end delay analysis for a wireless
sensor network with a cluster tree topology, Wireless Communications and
Mobile Computing, to appear.
2. M. Ni, Z. Zhong, and D. Zhao, MPBC: a mobility prediction-based
clustering scheme for ad hoc networks, IEEE Transactions on Vehicular
Technology, vol. 60, no. 9, 2011.
3. B. Wang, D. Zhao,
and J. Cai, Joint connection admission control and
packet scheduling in a cognitive radio network with spectrum underlay, IEEE
Transactions on Wireless Communications, accepted.
4. S. Feng, Z. Liang, D. Zhao, and S. Shen, Supporting real-time traffic in a cognitive radio sensor networkÓ, IEEE
Transactions on Wireless Communications, vol, 10, no.
1, Jan. 2011.
5. B. Wang and D.
Zhao, Scheduling for long term proportional fairness in a cognitive wireless
network with spectrum underlay, IEEE Transactions on Wireless Communications,
vol. 9, no. 2, 2010.
6. S. Feng, Z. Liang, and D. Zhao, Providing telemedicine
services in an infrastructure-based cognitive radio network, IEEE Wireless
Communications Magazine, February, 2010.
7. J. Zou and D. Zhao, ÒConnection-based scheduling for
supporting real-time traffic in wireless mesh networksÓ, IEEE Transactions on
Wireless Communications, vol. 8, no. 3, 2009, pp.1182 1187.
8. M. Shen and D. Zhao, Opportunistic link scheduling for multihop wireless networks, IEEE Transactions on Wireless
Communications, vol.8, no. 1, 2009, pp. 234-244.
9. L. Dai and D.
Zhao, Real-time voice traffic scheduling in IEEE 802.16-based backhaul
networks, Journal of Computer Science and Technology, vol. 23, no.5, Sept.
2008, pp. 1-15.
10. M. Shi, X. Shen, J. W. Mark, D. Zhao, and Y. Jiang, User
authentication and undeniable billing support for agent-based roaming service
in WLAN/cellular integrated mobile networks, Computer Networks Journal
(COMNET), vol. 52, no.9, June 2008, pp.1693-1702.
11. M. He, X. Wang,
T.D. Todd, D. Zhao, and V. Kezys, Ad hoc assisted
handoff for real-time voice in IEEE 802.11 infrastructure WLANs,
International Journal of Wireless and Mobile Computing, vol. 2, no.4, 2007,
pp.324-336.
12. D. Zhao, Throughput fairness in infrastructure-based IEEE 802.11 mesh networks, IEEE
Transactions on Vehicular Technology, vol. 56, no.5, Sept. 2007, pp.3210-3219.
13. T. D. Todd, A. A.
Sayegh, M. Smadi, D. Zhao, The need for access point power saving in solar powered WLAN mesh networks,
IEEE Network, vol. 22, no.3, May/June 2008, pp. 4-10.
14. M. Smadi, T.D. Todd, V. Kezys, V. Azhari, and D. Zhao, Dynamic anchored conferencing handoff
for dual-mode cellular/WLAN handsets, Wireless Networks, vol. 14, no. 6, Dec.
2008, pp.815-829.
15. J. Zou and D. Zhao, Real-time CBR traffic scheduling in IEEE
802.16-based wireless mesh networks, Wireless Networks, vol. 15, no. 1, Jan.
2009, pp.65-72.
16. D. Zhao and X. Shen, Performance of packet voice transmission using IEEE
802.16 protocol, IEEE Wireless Communications, vol.14, no.1, Feb. 2007,
pp.44-51.
17. D. Zhao, J. Zou and T.D. Todd, Admission control with load balancing
in IEEE 802.11-based ESS mesh networks, ACM Wireless Networks, 2007(13),
pp.351-359.
18. P. Khadivi, T. D. Todd, S. Samavi,
H. Saidi and D.Zhao,
``Mobile ad hoc relaying for upward vertical handoff in hybrid WLAN/cellular
systems'', Ad Hoc Networks, Elsevier, 2007.
19. D. Zhao, Access
control in ad hoc networks with selfish nodes, International Journal on
Wireless Communications and Mobile Computing, 2006(6), pp.761-772.
20. P. Khadivi, S. Samavi, H. Saidi, T.D. Todd, and D. Zhao, Dropping rate reduction in
hybrid WLAN/cellular systems by mobile ad hoc relaying, Wireless Personal
Communications (Springer), vol.39, no.4, Dec. 2006, pp.515-542.
21. D. Zhao, X. Shen and J.W. Mark, QoS
guarantee and optimum power distribution for soft handoff connections in
cellular CDMA downlinks, IEEE Transactions on Wireless Communications, vol.5,
Apr. 2006, pp.910-919.
22. D. Zhao and T.D.
Todd, Cellular CDMA capacity with out-of-band multihop
relaying, IEEE Transactions on Mobile Computing, vol.5, no.2, Feb. 2006,
pp.170-178.
23. F. Zhang, T.D.
Todd, D. Zhao, and V. Kezys, Power saving access
points for IEEE 802.11 wireless network infrastructure, IEEE Transactions on
Mobile Computing, vol.5, no.2, Feb. 2006, pp. 144-156.
24. D. Zhao, X. Shen and J.W. Mark, Soft handoff and connection
reliability in cellular CDMA networks, IEEE Transactions on Wireless
Communications, vol.5, Feb. 2006, pp.354-365.
25. D. Zhao and T.D.
Todd, ÒReal-time traffic support in relayed wireless access networks using IEEE
802.11Ó, IEEE Wireless Communications, vol.11, no. 2, Apr. 2004, pp.32-39.
26. D. Zhao, Optimum
power distribution for cellular CDMA downlinks, Dynamics of Continuous,
Discrete and Impulsive Systems, Series B: Applications & Algorithms, Oct.
2003, pp. 621-633.
27. D. Zhao, X. Shen and J.W. Mark, Radio resource management for uplinks
in cellular MC-CDMA systems supporting heterogeneous services, IEEE
Transactions on Mobile Computing, vol. 2, no. 2, Apr.-June 2003, pp.147-160.
28. D. Zhao, X. Shen and J.W. Mark, QoS
performance bounds and efficient connection admission control for heterogeneous
services in wireless cellular networks, ACM Wireless Networks, vol. 8, 2002,
pp. 85-95.
29. D. Zhao, X. Shen and J.W. Mark, Efficient call admission control for
heterogeneous services in wireless mobile ATM networks, IEEE Communications
Magazine, vol. 38, Oct. 2000, pp. 72.
1. D. Wu, G. Zhu, L.
Sun, and D. Zhao, Joint mode/route selection and power allocation in cellular
networks with cooperative relay, submitted to IEEE International Conference on
Communications (ICC), Ottawa, 2012.
2. M. Ni, Z. Zhong, and D. Zhao, A novel multichannel multiple access
protocol for vehicular ad hoc networks, submitted to IEEE International
Conference on Communications (ICC), Ottawa, 2012.
3. H. Meshgi, D. Zhao, ÒOpportunistic scheduling in a
bidirectional communication link with relayingÓ, Ó, submitted to IEEE
International Conference on Communications (ICC), Ottawa, 2012.
4. Y. Yang and D.
Zhao, Joint handoff and energy management for a wireless mesh network, IEEE
International Conference on Communications (ICC), Kyoto, Japan, June 5-9, 2011.
5. D. Wu, G. Zhu,
and D. Zhao, Energy balancing in an OFDM-based WSN, 73rd IEEE Vehicular
Technology Conference (VTC2011-Spring), Budapest, May 15-19, 2011.
6. K. Moghadam, G. Badaway, T. Todd, D.
Zhao, and J. Perez Diaz, Opportunistic vehicular ferrying for energy efficient
wireless mesh networks, IEEE Wireless Communications and Networking Conference
(WCNC), Quintana-Roo, Mexico, Mar. 28-31, 2011.
7. D. Wu, G. Zhu,
and D. Zhao, Cross-layer design of joint relay selection and power control
scheme in relay-based multi-cell networks, IEEE Wireless Communications and
Networking Conference (WCNC), Quintana-Roo, Mexico,
Mar. 28-31, 2011.
8. M. Mohseni and D. Zhao, Time and power scheduling in a
wireless network with network coding and bidirectional relaying, International
ICST Conference on Heterogeneous Networking for Quality, Reliability, Security
and Robustness (QShine), Houston, TX, Nov. 17-19,
2010.
9. B. Wang and D.
Zhao, Admission control and packet scheduling in a cognitive radio network
with spectrum underlay, IEEE Global Communication Conference (GLOBECOM),
Miami, FL, USA, Dec. 6-10, 2010.
10. L.X. Cai, Y. Liu, T.H. Luan, X. Shen,
J.W. Mark, and D. Zhao, Distributed QoS-aware MAC
for multimedia over cognitive radio networks, IEEE Global Communication
Conference GLOBECOM), Miami, FL, USA, Dec. 6-10, 2010.
11. G. Badawy, J. Misic, T.D. Todd, and
D. Zhao, Performance modeling of safety message delivery in vehicular ad hoc
networks, The 6th IEEE International Conference on Wireless and Mobile
Computing, Networking and Communications (WiMob),
Niagara Falls, Canada, Oct. 1113, 2010.
12. W. Liu, D. Zhao
and G. Zhu, Association schemes in a wireless sensor network with a cluster
tree topology, IEEE Vehicular Technology Conference Fall (VTC-Fall), Ottawa,
Canada, Sept. 6-9, 2010.
13. Z. Liang, S. Feng and D. Zhao, Supporting random real-time traffic in a
cognitive radio sensor network, IEEE Vehicular Technology Conference Fall
(VTC-Fall), Ottawa, Canada, Sept. 6-9, 2010.
14. Z. Liang and D.
Zhao, Quality of service performance of a cognitive radio sensor network,
IEEE International Conference on Communications (ICC), Cape Town, South Africa,
May 2327, 2010.
15. S. Feng and D. Zhao, Design and performance analysis of a
cognitive radio sensor network, IEEE Wireless Communications and Networking
Conference (WCNC), Sydney, Australia, Apr. 18-21, 2010.
16. M. Ni, Z. Zhong, H. Wu, and D. Zhao, A new stable clustering scheme
for highly mobile ad hoc networks, IEEE Wireless Communications and Networking
Conference (WCNC), Sydney, Australia, Apr. 18-21, 2010.
17. M. Ni, Z. Zhong, H. Wu, and D. Zhao, An energy efficient clustering
scheme for mobile ad hoc networks, IEEE Vehicular Technology Conference 2010
Spring, Taipei, May 16-19, 2010.
18. B. Wang and D.
Zhao, Long term fair scheduling in a cognitive wireless network with spectrum
underlay, IEEE Global Communications (GLOBECOM) 2009, Honolulu, Hawaii, USA,
Nov. 30-Dec. 4, 2009.
19. J. Cao, Z. Zhong, B. Ai, and D. Zhao, Cooperative regions for decode
and forward strategies over Rayleigh fading channels, IEEE Personal, Indoor,
and Mobile Radio Communication Conference (PIMRC), Tokyo, Japan, Sept. 13-16,
2009.
20. D. Zhao and X. Shen, Design of a large scale multi-cluster wireless
sensor networkÓ, Chinacom 2009, Xi'an, China, Aug.
26-28, 2009 (best paper award).
21. B. Wang and D.
Zhao, Downlink power distribution of a wireless CDMA network with cooperative
relaying, IEEE International Conference on Communications (ICC) 2009, Dresden,
Germany, June 14-18.
22. W. Song, W. Zhuang, and D. Zhao, Performance Evaluation of Interactive
Data Services Under Sharing and Preemptive Scheduling Disciplines, IEEE
International Conference on Communications (ICC) 2009, Dresden, Germany, June
14-18, 2009.
23. B. Wang and D.
Zhao, Performance analysis in CDMA-based cognitive wireless networks with
spectrum underlay, IEEE Global Communications (GLOBECOM) 2008, New Orleans,
LA, USA, Nov. 30-Dec. 4, 2008.
24. J. Zou and D. Zhao, ÒConnection-based scheduling for
supporting real-time traffic in wireless mesh networksÓ, IEEE International
Conference on Communications (ICC), Beijing, China, May 19-23, 2008.
25. B. Wang and D.
Zhao, Optimum power distribution for uplink channel in a cooperative wireless
CDMA network, IEEE International Conference on Communications (ICC), Beijing,
China, May 19-23, 2008.
26. M. Shi, X. Shen, J.W. Mark and D. Zhao, Credit-based user
authentication for delay tolerant mobile wireless networks, IEEE International
Conference on Communications (ICC), Beijing, China, May 19-23, 2008.
27. L. Dai and D.
Zhao, Real-time voice traffic scheduling in IEEE 802.16-based backhaul
networks, The fourth International Conference on Heterogeneous Networking for
Quality, Reliability, Security and Robustness (QShine),
Aug. 14-17, 2007, Vancouver, British Columbia.
28. M. Shen and D. Zhao, Opportunistic link scheduling in multihop wireless networks, IEEE Global Communications
Conference (GLOBECOM), Washington DC, U.S.A, Nov. 25-30, 2007.
29. M. Shi, X. Shen, J.W. Mark and D. Zhao, A versatile roaming
architecture with billing support for WLAN/cellular integrated networks, The
fourth International Conference on Heterogeneous Networking for Quality,
Reliability, Security and Robustness (QShine), Aug.
14-17, 2007, Vancouver, British Columbia.
30. J. Zou and D. Zhao, G-BFS: a scheduling scheme for CBR
real-time traffic in IEEE 802.11 mesh networks, IEEE Wireless Communications
and Networking Conference (WCNC), Mar. 11-15, 2007, Hong Kong.
31. D. Zhao, Achieving fair throughput in infrastructure-based IEEE 802.11 mesh networks,
IEEE Global Communications Conference (GLOBECOM), Nov. 27 -Dec. 1, 2006, San
Francisco.
32. M. Shen and D. Zhao, TCP throughput performance in IEEE
802.11-based multi-hop wireless networksÓ, The Third International Conference
on Quality of Service in Heterogeneous Wired/Wireless Networks (QShine), Waterloo, Ontario, Canada, Aug. 7-9, 2006.
33. D. Zhao, Distributed schemes for fair throughput in infrastructure-based IEEE 802.11
mesh networks, The Third International Conference on Quality of Service in
Heterogeneous Wired/Wireless Networks (QShine),
Waterloo, Ontario, Canada, Aug. 7-9, 2006.
34. J. Zou and D. Zhao, Real-time voice traffic scheduling and
its optimization in IEEE 802.11 infrastructure-based wireless mesh networks,
The Third International Conference on Quality of Service in Heterogeneous
Wired/Wireless Networks (QShine), Waterloo, Ontario,
Canada, Aug. 7-9, 2006.
35. J. Zou and D. Zhao, Bottleneck-first scheduling for real-time
traffic in IEEE 802.11 infrastructure-based wireless mesh networks,
International Conference on Wireless Communications and Mobile Communications,
Vancouver, Canada, July 3-5, 2006.
36. W. Guan, X. Ling,
X. Shen, and D. Zhao, Handoff trigger table for
integrated 3G/WLAN networks, International Conference on Wireless
Communications and Mobile Communications, Vancouver, Canada, July 3-5, 2006.
37. D. Zhao, Inter-AP coordination for fair throughput in infrastructure-based IEEE 802.11
mesh networks, International Conference on Wireless Communications and Mobile
Communications, Vancouver, Canada, July 3-5, 2006.
38. M. Smadi, T.D. Todd, V. Kezys, and
D. Zhao, Dynamically anchored conferencing handoff for dual-mode cellular/WLAN
handsets, IEEE International Conference on Communications (ICC), Istanbul,
Turkey, June 11-15, 2006.
39. A Sayegh, T.D. Todd, and D. Zhao, Inter-subnetwork
handover in IEEE 802.11 legacy networks using secure L2 masquerading, The 23rd
Queen's Biennial Symposium on Communications, Kingston, Ontario, Canada, May
29-June 1, 2006.
40. D. Zhao, J. Zou and T.D. Todd, Admission control and load balancing in
IEEE 802.11-based ESS mesh networks, The Second International Conference on
Quality of Service in Heterogeneous Wired/Wireless Networks (QShine), Orlando, FL USA, Aug. 22-24, 2005.
41. Y. Li, T.D. Todd
and D. Zhao, Access point power saving in solar/battery powered IEEE 802.11
ESS mesh networks, The Second International Conference on Quality of Service
in Heterogeneous Wired/Wireless Networks (QShine),
Orlando, FL USA, Aug. 22-24, 2005.
42. P. Khadivi, T.D. Todd, S. Samavi, H.
Saidi, and D. Zhao, Mobile ad hoc relaying in hybrid
WLAN/cellular systems for dropping probability reduction, Annual International
Conference on Communications in Computing (CIC), Seoul, Korea, Oct. 25-28,
2004.
43. P. Khadivi, T.D. Todd, D. Zhao, and V. Kezys, Handoff trigger nodes and protocols for hybrid IEEE 802.11 WLAN/cellular
networks, The first International Conference of Quality of Service in
Heterogeneous Wired/Wireless Networks (QShine),
Dallas, TX USA, Oct. 18-20, 2004.
44. D. Zhao and T.D.
Todd, Cellular CDMA capacity improvement using ad hoc relaying, IEEE
International Symposium on Personal, Indoor and Mobile Radio Communications
(PIMRC), Barcelona, Spain, Sept. 5-8, 2004.
45. X. Wang, T.D.
Todd, V. Kezys, and D. Zhao, Power saving gateways
for real-time voice handset support in IEEE 802.11 wireless LANs, IEEE
International Conference on Communications (ICC), Paris, France, June 20-24,
2004.
46. D. Zhao and T.D.
Todd, Cellular CDMA capacity improvement using ad hoc relaying with a dynamic
rely selection protocol, IEEE World Wireless Congress (WWC), San Francisco,
U.S.A., May 25-28, 2004.
47. D. Zhao, X. Shen, and J.W. Mark, Effect of soft handoff on packet
transmissions in cellular CDMA downlinks, International Symposium on Parallel
Architecture, Algorithms, and Networks (ISPAN), Hong Kong, May 10-12, 2004.
48. F. Zhang, T.D.
Todd, D. Zhao, and V. Kezys, Power saving access
points for IEEE 802.11 wireless network infrastructure, IEEE Wireless
Communication and Networking Conference (WCNC), Atlanta, U.S.A, Mar. 21-25,
2004.
49. M. He, T.D. Todd,
D. Zhao, and V. Kezys, Ad hoc assisted handoff for
real-time voice in IEEE 802.11 infrastructure WLANs,
IEEE Wireless Communication and Networking Conference (WCNC), Atlanta, U.S.A,
Mar. 21-25, 2004.
50. T.D. Todd and D.
Zhao, Cellular CDMA capacity in hotspots with limited ad hoc relaying, IEEE
International Symposium on Personal, Indoor and Mobile Radio Communications
(PIMRC), Beijing, China, Sept. 7-10, 2003, pp. 2828-2832.
51. D. Zhao, X. Shen, and J.W. Mark, Soft handoff and connection reliability
in cellular CDMA downlinks, IEEE 3rd Generation Wireless Communications
Conference, San Francisco, CA, U.S.A, May 27-30, 2003.
52. D. Zhao, Power
distribution and soft handoff for downlink channels in cellular CDMA systems,
IEEE Wireless Communications and Networking Conference (WCNC), New Orleans, LA,
U.S.A., Mar. 16-20, 2003, pp. 1901-1906.
53. D. Zhao, X. Shen and J.W. Mark, Performance analysis for cellular
systems supporting heterogeneous services, IEEE International Conferences on
Communications (ICC), NYC, U.S.A., Apr. 28-May 2, 2002, pp. 3351-3355.
54. D. Zhao, X. Shen and J.W. Mark, Quality of service support by power
and rate allocation in MC-CDMA systems, in IEEE Global Communications
Conference (GLOBECOM), San Antonio, U.S.A., Nov. 25-29, 2001, pp. 964-968.
55. D. Zhao, X. Shen and J.W. Mark, Uplink power distribution in MC-CDMA
systems supporting heterogeneous services, IEEE Global Communications
Conference (GLOBECOM), San Antonio, U.S.A., Nov. 25-29, 2001, pp. 2040-2044.
56. D. Zhao, X. Shen and J.W. Mark, Radio resource management for uplink
channel in cellular MC-CDMA systems supporting heterogeneous services, IEEE
International Conference on Third Generation Wireless and Beyond, Silicon
Valley, CA, USA, May 30-Jun. 2, 2001, pp. 210-215.
57. D. Zhao, X. Shen and J.W. Mark, Guaranteed QoS
for heterogeneous services in MC-CDMA systems, International Seminar on Teletraffic and Network (ISTN), Hangzhou, China, Nov. 1517,
2000, pp. 57-60.
58. D. Zhao, X. Shen and J.W. Mark, Call admission control for
heterogeneous services in wireless networks, IEEE International Conference on
Communications (ICC), New Orleans, U.S.A, June 20-24, 2000, pp. 964-968.
59. D. Zhao, X. Shen and J.W. Mark, Efficient call admission control for
heterogeneous services in wireless networks, IEEE International Conference on
Third Generation Wireless Communications, Silicon Valley, CA, USA, June 12-17,
2000, pp. 569-576.
60. D. Zhao, X. Shen and J.W. Mark, Improved QoS
performance bounds for a wireless ATM network, Fifth Asia Pacific Conference
on Communications, Beijing, China, Oct. 18-22, 1999, pp. 183-187.