Publications

Found 116 results
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2012
P. Lal Shrestha, Hempel, M., Mahasukhon, P., Ma, T., and Sharif, H., “Quantitative Performance Analysis of 3.65 GHz Mobile WiMAX”, in IEEE Consumer Communications and Networking Conference (CCNC), 2012, pp. 1-5.
P. Lal Shrestha, Hempel, M., Ma, T., Peng, D., and Sharif, H., “Removing Hidden Data by Pseudo-CFA Re-interpolation”, International Journal of Multimedia and Image Processing, vol. 2, pp. 134- 142, 2012.
S. Ma, Hempel, M., Yang, Y., and Sharif, H., “Securing Wireless Communications in Transmit-Beamforming Diversity Systems by Precoding Jamming Noise Signals”, John Wiley Security and Communication Networks Journal, vol. 5, pp. 1028-1036, 2012.
T. Ma, Hempel, M., Peng, D., and Sharif, H., “A Survey of Energy-Efficient Compression and Communication Techniques for Multimedia in Resource Constrained Systems”, IEEE Communications Surveys and Tutorials, pp. 1-10, 2012.
T. Ma, Hempel, M., and Sharif, H., “A Time Reservation MAC Protocol with Ultra-Low Duty Cycle for Wireless Sensor Network”, International Journal of Research and Reviews in Wireless Sensor Networks (IJRRWSN), vol. 2, 2012.
T. Ma, Hempel, M., Peng, D., Sharif, H., Rezaei, F., Shrestha, P. Lal, and Chen, H. - H., “Using Cross-Layer Techniques for Body Area Sensor Networks – Energy, Security and Authentication”, in Using Cross-Layer Techniques for Communication Systems, H. F. Rashvand and Kavian, Y. S. IGI Global, 2012, pp. 120-137.
P. Lal Shrestha, Hempel, M., Ma, T., Peng, D., and Sharif, H., “Watermark Removal using Pseudorandom Desynchronization by Selective Pixel Elimination”, in IEEE International Conference on Communications (ICC), 2012, pp. 1-5.
2011
T. Zhou, Sharif, H., Hempel, M., Mahasukhon, P., Ma, T., and Shrestha, P. Lal, “A cross-layer parallel handover optimization scheme for WiMAX networks”, in Military Communications Conference (MILCOM), 2011, pp. 699-704.
P. Lal Shrestha, Hempel, M., Ma, T., Peng, D., and Sharif, H., “A General Attack Method for Steganography Removal Using Pseudo-CFA Re-interpolation”, in International Conference for Internet Technology and Secured Transactions (ICITST), 2011, pp. 454-459.
J. Taylor, Hempel, M., Sharif, H., Ma, S., and Yang, Y., “Impact of Channel Estimation Errors on Effectiveness of Eigenvector-Based Jamming for Physical Layer Security in Wireless Networks”, in IEEE International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD), 2011, pp. 1-7.
T. Ma, Shrestha, P. Lal, Hempel, M., Peng, D., and Sharif, H., “Low-Complexity Image Coder/Decoder with an Approaching-Entropy Quad-Tree Search Code for Embedded Computing Platforms”, in IEEE International Conference on Image Processing (ICIP), 2011, pp. 297-300.
F. Rezaei, Hempel, M., and Sharif, H., “LTE PHY performance analysis under 3GPP standards parameters”, in IEEE International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD), 2011, pp. 102-106.
P. Mahasukhon, Sharif, H., Hempel, M., Ma, T., and Shrestha, P. Lal, “Mobile WiMAX Throughput and Delay Measurements in Railroad Environment”, in IEEE Annual Wireless and Microwave Technology Conference (WAMICON), 2011, pp. 1-6.
T. Ma, Hempel, M., Peng, D., Rezaei, F., Shrestha, P. Lal, and Sharif, H., “A New Energy-Efficient Pre-Diagnosing ECG Transmission Technique for BASN”, in International Symposium on Applied Sciences in Biomedical and Communication Technologies (ISABEL), 2011, pp. 1-5.
T. Zhou, Sharif, H., Hempel, M., Mahasukhon, P., Wang, W., and Ma, T., “A Novel Adaptive Distributed Cooperative Relaying MAC Protocol for Vehicular Networks”, IEEE Journal on Selected Areas in Communications (JSAC), vol. 29, pp. 72-82, 2011.
T. Zhou, Sharif, H., Hempel, M., Mahasukhon, P., Ma, T., and Shrestha, P. Lal, “Priority Preemption for Real-Time Application QoS Guarantees in Cooperative Vehicular Networks”, in IEEE Vehicular Technology Conference (VTC-Spring), 2011, pp. 1-6.
P. Lal Shrestha, Mahasukhon, P., Hempel, M., Ma, T., and Sharif, H., “Quantitative analysis of propagation characteristics for Mobile WiMAX”, Wireless Telecommunications Symposium (WTS), pp. 1-5, 2011.
W. Wang, Wang, H., Hempel, M., Peng, D., Sharif, H., and Chen, H. - H., “Secure Stochastic ECG Signals Based on Gaussian Mixture Model for e-Healthcare Systems”, IEEE Systems Journal, vol. 5, pp. 564-573, 2011.
P. Mahasukhon, Sharif, H., Hempel, M., Zhou, T., Ma, T., and Shrestha, P. Lal, “A study on energy efficient multi-tier multi-hop wireless sensor networks for freight-train monitoring”, in IEEE International Wireless Communications and Mobile Computing Conference (IWCMC), 2011, pp. 297-301.
2010
S. Ma, Hempel, M., Yang, Y., and Sharif, H., “An approach to secure wireless communications using randomized eigenvector-based jamming signals.”, in IWCMC, 2010, pp. 1172-1176.
P. Mahasukhon, Sharif, H., Hempel, M., Zhou, T., and Ma, T., “Distance and Throughput Measurements in Mobile WiMAX Test Bed”, in Military Communications Conference (MILCOM), 2010, pp. 1-6.
W. Wang, Sharif, H., Hempel, M., Zhou, T., Mahasukhon, P., and Ma, T., “Implementation and Performance Evaluation of a Complete, Accurate, Versatile and Realistic Simulation Model for Mobile WiMAX in NS-2”, in IEEE International Conference on Communications (ICC), 2010, pp. 1-5.
W. Wang, Sharif, H., Hempel, M., Zhou, T., Mahasukhon, P., and Ma, T., “Implementation and Performance Evaluation of QoS Scheduling Algorithms in Mobile WiMAX NS-2 Simulator”, in International Conference on Signal Processing and Communication Systems (ICSPCS), 2010, pp. 1-6.
H. Wang, Hempel, M., Peng, D., Wang, W., Sharif, H., and Chen, H. - H., “Index-Based Selective Audio Encryption for Wireless Multimedia Sensor Networks”, IEEE Transactions on Multimedia, vol. 12, pp. 1-9, 2010.
P. Mahasukhon, Sharif, H., Hempel, M., Zhou, T., Wang, W., and Ma, T., “Multi-Tier Multi-Hop Routing in Large-Scale Wireless Sensor Networks for Freight-Train Monitoring”, in ITS America Annual Annual Meeting and Exposition, 2010, pp. 1-11.
P. Mahasukhon, Sharif, H., Hempel, M., Zhou, T., Wang, W., and Ma, T., “Multi-Tier Multi-Hop Routing in Large-Scale Wireless Sensor Networks for Freight-Train Monitoring”, in ITS World Congress, 2010, pp. 1-11.
P. Mahasukhon, Sharif, H., Hempel, M., Zhou, T., Ma, T., and Shrestha, P. Lal, “Multi-tier Multi-hop Routing in Large-scale Wireless Sensor Networks for Real-time Monitoring”, in IEEE SENSORS Conference, 2010, pp. 678-681.
S. Ma, Hempel, M., Yang, Y., and Sharif, H., “A New Approach to Null Space-Based Noise Signal Generation for Secure Wireless Communications in Transmit-Receive Diversity Systems”, in IEEE International Conference on Wireless Communications, Networking and Information Security (WCNIS), 2010, pp. 406-410.
T. Ma, Hempel, M., Hua, K., Peng, D., and Sharif, H., “A novel cooperative image transmission scheme in Wireless Sensor Networks”, in IEEE Local Computer Network Conference (LCN), 2010, pp. 240-243.
T. Ma, Hempel, M., Peng, D., and Sharif, H., “A Novel Image Authentication Approach Using an Overlap-Based Shared Secret for Collaborative Wireless Sensors”, in IEEE Vehicular Technology Conference (VTC-Spring), 2010, pp. 1-5.
P. Mahasukhon, Sharif, H., Hempel, M., Zhou, T., Wang, W., and Ma, T., “Propagation Path Loss Estimation Using Nonlinear Multi-Regression Approach”, in IEEE International Conference on Communications (ICC), 2010, pp. 1-5.
T. Ma, Hempel, M., Peng, D., and Sharif, H., “Rate-switching Unequal Protection for Wireless Electrocardiogram (ECG) Transmission”, in Military Communications Conference (MILCOM), 2010, pp. 1181-1186.
W. Wang, Hua, K., Hempel, M., Peng, D., Sharif, H., and Chen, H. - H., “A stochastic biometric authentication scheme using uniformed GMM in wireless body area sensor networks”, in IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), 2010, pp. 1620-1624.
W. Wang, Hempel, M., Peng, D., Sharif, H., Wang, H., and Chen, H. - H., “On Unified Intra/Inter Coding and Signature/Hash Authentication Diversity for Efficient and Secure Wireless Video Transmission”, in IEEE Global Telecommunications Conference (GLOBECOM), 2010, pp. 1-5.
2009
T. Zhou, Sharif, H., Hempel, M., Mahasukhon, P., Wang, W., and Ma, T., “A Deterministic approach to evaluate path loss exponents in large-scale outdoor 802.11 WLANs.”, in LCN, 2009, pp. 348-351.
P. Mahasukhon, Sharif, H., Hempel, M., Zhou, T., Wang, W., and Chen, H. - H., “IEEE 802.11b based ad hoc networking and its performance in mobile channels”, IET Communications, vol. 3, pp. 689-699, 2009.
T. Zhou, Sharif, H., Hempel, M., Mahasukhon, P., Wang, W., and Ci, S., “A novel ray tracing based multipath modeling approach for site-specific WLAN simulations”, in IEEE International Conference on Communications (ICC), 2009, pp. 5314-5219.
P. Mahasukhon, Sharif, H., Hempel, M., Zhou, T., and Wang, W., “Optimal packet size estimation using pseudo gradient search based on 2-additive measures”, in International Symposium on Performance Evaluation of Computer Telecommunication Systems. (SPECTS), 2009.
T. Zhou, Sharif, H., Hempel, M., Mahasukhon, P., Wang, W., and Chen, H. - H., “Performance Study of a Mobile Multi-hop 802.11a/b Railway Network Using Passive Measurement”, Mobile Networks and Applications, vol. 14, pp. 782-797, 2009.
T. Zhou, Sharif, H., Hempel, M., Mahasukhon, P., and Wang, W., “Quantitative study of an outdoor multi-hop 802.11 network performance using a novel passive measurement approach”, in IEEE Consumer Communications and Networking Conference (CCNC), 2009, pp. 930-935.
M. Hempel, Sharif, H., Wang, W., Zhou, T., and Mahasukhon, P., “A Study of Critical Baseline Performance Characteristics for IEEE 802.16d”, International Journal of Autonomous and Adaptive Communications Systems (IJAACS), vol. 2, p. 58, 2009.
P. Mahasukhon, Sharif, H., Hempel, M., Zhou, T., Wang, W., and Ma, T., “Type I HARQ performance modeling and evaluation of mobile WiMAX for network simulators”, in International Wireless Communications and Mobile Computing Conference (IWCMC), 2009, pp. 707-711.
2008
M. Hempel, Wang, W., Sharif, H., Zhou, T., and Mahasukhon, P., “Implementation and Performance Evaluation of Selective Repeat ARQ for WiMAX NS-2 model”, in IEEE Conference on Local Computer Networks (LCN), 2008, pp. 230-235.
P. Mahasukhon, Sharif, H., Hempel, M., Zhou, T., Wang, W., and Wysocki, T., “Performance Analysis of Multi-hop IEEE 802.11 DCF Backhaul Networks”, in IEEE International Conference on Wireless and Mobile Computing, Networking and Communications (WIMOB), 2008, pp. 69-74.
T. Zhou, Sharif, H., Hempel, M., Mahasukhon, P., Wang, W., and Ci, S., “A Quantitative Study of Mobility Impact for Real-Time Services on a Wi-Fi Multi-hop Network”, in IEEE Vehicular Technology Conference (VTC-Spring), 2008, pp. 2577-2581.
M. Hempel, Sharif, H., Wang, W., Zhou, T., and Mahasukhon, P., “A Study of Critical Baseline Performance Characteristics for IEEE 802.16e-2005”, in IEEE International Wireless Communications and Mobile Computing Conference (IWCMC), 2008, pp. 1-6.
W. Wang, Sharif, H., Hempel, M., Zhou, T., and Mahasukhon, P., “Throughput vs. Distance Tradeoffs and Deployment Considerations for a Multi-Hop IEEE 802.16e Railroad Test Bed”, in IEEE Vehicular Technology Conference (VTC-Spring), 2008, pp. 1-5.
2007
P. Mahasukhon, Hempel, M., Sharif, H., Zhou, T., Ci, S., and Chen, H. - H., “BER Analysis of 802.11b Networks Under Mobility”, in IEEE International Conference on Communications (ICC), 2007, pp. 1-6.
P. Mahasukhon, Hempel, M., Ci, S., and Sharif, H., “Comparison of Throughput Performance for the IEEE 802.11a and 802.11g Networks”, in International Conference on Advanced Networking and Applications (AINA), 2007, pp. 792-799.
2006
P. Raviraj, Sharif, H., Hempel, M., and Ci, S., “An Energy Efficient MAC Approach for Mobile Wireless Sensor Networks”, in IEEE International Conference on Computer Systems and Applications (ICCSA), 2006, pp. 1-6.