Tim Brown's Publications Page

My research looks at the intersection between the parallelism and adaptation possible with neural network type architectures, and control of large complex communication systems. Broadly my research falls into four areas, control in communication networks, wireless communication, fine grain parallelism using neural networks, and neural network learning.

Adaptive Communication Network Control

Q. Wang, T. X Brown, ``Pricing versus admission control in multi-class loss networks,'' 40th annual Conference on Information on Sciences and Systems, Princeton, NJ, March, 2006 (pdf)
T. X Brown, ``Switch Packet Arbitration via Queue-Learning,'' accepted in Neural Information Processing Systems, Vancouver, BC, Dec. 2001. (pdf)
T. X Brown, ``Statistical Classification Based Admission Control,'' Invited paper in SPIE ITCOM, Denver, CO, Aug 19-24, 2001. (pdf)
T. X Brown and Hal N. Gabow, ``Future Information in Input Queueing,'' submitted to Communication Networks. (pdf)
H. Tong, T.X Brown, ``Reinforcement Learning for Call Admission Control and Routing under Quality of Service Constraints in Multimedia Networks,'' accepted in Machine Learning, 2000. (postscript, pdf)
H. Tong, T. X Brown, ``Adaptive call admission control under quality of service constraints: a reinforcement learning solution,'' IEEE JSAC. v. 18, n. 2, pp. 209-221, Feb. 2000. (postscript)
T. X Brown, ``Adaptive Statistical Multiplexing for Broadband Communications,'' in ed. Kouvatsos, D., Performance Evaluation and Applications of ATM Networks Kluwer, 2000 pp. 51-79. (pdf)
T. X Brown, H. Tong, ``Adaptive resource allocation for telecommunications,'' Invited paper in SPIE International Symposium on Optical Science, Engineering, and Instrumentation, Denver, July 18-23, 1999. (pdf)
T. X Brown, ``Classifying Loss Rates in Broadband Networks,'' INFOCOMM '99, New York, April, 1999. (postscript)
T. X Brown, H. Tong, S. Singh, ``Optimizing admission control while ensuring quality of service in multimedia networks via reinforcement learning,'' to appear in Advances in Neural Information Processing Systems, ed. M. Kearns et al., MIT Press, 1999. (postscript)
H. Tong, T. X Brown, ``Estimating Loss Rates in an Integrated Services Network by Neural Networks,'' in Proc. of Global Telecommunications Conference (GLOBECOM 98). (postscript)
T. X Brown, ``Bandwidth Dimensioning for Data Traffic,'' in Proc. of IWANNT3, ed. J. Alspector, et al., Erlbaum, 1997. pp. 88-96. (abstract,postscript)
T. X Brown, ``Adaptive Access Control Applied to Ethernet Data,'' Advances in Neural Information Processing Systems, ed. M. Mozer et al., MIT Press, 1997. pp. 932-938. (abstract, postscript)
T. X Brown, ``Classifying Loss Rates with Small Samples,'' in Proc. of IWANNT2, ed. J. Alspector, et al., Erlbaum, 1995. pp. 153-161. (abstract)
T. X Brown, J. Alspector, ``Adaptive ATM Access Control,'' Bellcore Internal Memo, Oct. 1994. (pdf)

Wireless Communication

D. Henkel, C. Dixon, J. Elston, T. X Brown, ``A Reliable Sensor Data Collection Network Using Unmanned Aircraft,'' in Proc. Second International Workshop on Multi-hop Ad Hoc Networks: from theory to reality (REALMAN),'' Florence, May 26, 2006. (pdf)
T. X Brown, J. E. James, A. Sethi, ``Jamming and Sensing of Encrypted Wireless Ad Hoc Networks,'' in Proc. Seventh ACM International Symposium on Mobile Ad Hoc Networking and Computing (MobiHoc), Florence, 22-25 May 2006 (pdf)
E. W. Frew, T. X Brown, C. Dixon, D. Henkel, ``Establishment and Maintenance of a Delay Tolerant Network through Decentralized Mobility Control,'' in Proc. IEEE International Conference On Networking, Sensing and Control, Ft Lauderdale, FL, Apr. 23-25, 2006. (pdf)
T. X Brown, D. Henkel, ``On Controlled Node Mobility in Delay-Tolerant Networks of Unmanned Aerial Vehicles,'' in Proc. of International Symposium on Advanced Radio Technologies, Boulder, CO, March 7-9, 2006. (pdf)
T. X Brown, ``An Analysis of Licensed Channel Avoidance Strategies for Unlicensed Devices,'' in Proc. First IEEE Int. Symposium on New Frontiers in Dynamic Spectrum Access Networks (DYSPAN), Nov. 8-11, 2005. (pdf)
E. W. Frew, C. Dixon, B. M. Argrow, T. X Brown, ``Radio Source Localization by a Cooperating UAV Team,'' Proc. AIAA Infotech@Aerospace Technical Conference, Arlington, VA, Sept. 26-29, 2005.
S. Jadhav, T. X Brown, S. Doshi, D. Henkel, R.-G. Thekkekunnel, ``Lessons Learned Constructing A Wireless Ad Hoc Network Test Bed,'' in Proc. of the Wireless Network Measurement Workshop, Trentino, Italy, 3 Apr. 2005.
T. X Brown, S. Doshi, S. Jadhav, D. Henkel, R.-G. Thekkekunnel, ``A Full-Scale Wireless Ad Hoc Network Test Bed,'' in Proc. of International Symposium on Advanced Radio Technologies, Boulder, CO, March 1-3, 2005. (pdf)
T. X Brown, S. Doshi, S. Jadhav, J. Himmelstein, ``Test Bed for a Wireless Network on Small UAVs,'' in Proc. AIAA 3rd ``Unmanned Unlimited'' Technical Conference, Chicago, IL, 20-23 Sep 2004. (pdf)
T. X Brown, B. Argrow, S. Doshi, R.-G. Thekkekunnel, D. Henkel, ``Ad Hoc UAV Ground Network (AUGNet),'' in Proc. AIAA 3rd ``Unmanned Unlimited'' Technical Conference, Chicago, IL, 20-23 Sep 2004. (pdf)
Shweta Bhandare, Sheetalkumar Doshi, Timothy X Brown, Sagar Sanghani ``Comparison of two wireless ad hoc routing protocols on a hardware test-bed,'' IEEE Wireless Communications and Networking Conference (WCNC), 16-20 March, 2003. (pdf)
Sagar Sanghani, Timothy X Brown, Shweta Bhandare, Sheetalkumar Doshi ``EWANT: The Emulated Wireless Ad Hoc Network Testbed,'' IEEE Wireless Communications and Networking Conference (WCNC), 16-20 March, 2003. (pdf)
S. Bhandare, ``Energy Aware Implementation of an Ad Hoc Routing Protocol,'' ITD Masters Thesis University of Colorado, 2003. (pdf)
S. Doshi, S. Bhandare, T. X Brown, ``An On-demand minimum energy routing protocol for a wireless ad hoc network,'' Mobile Computing and Communications Review, vol. 6, no. 2, July 2002. (pdf)
T. X Brown ``How can anyone afford mobile wireless mass media content?,'' in CITI Conference on Mass-Media Content for Wireless Mobile Communications, Columbia U. New York, April 5, 2002. (pdf)
T. X Brown, ``The future of 3G wireless: Should the cellular incumbants be worried?'' presented May 6 2002 at Colorado State University, Fort Collins. This combines several earlier talks: The CITI Conference on Mobile Wireless Content, Columbia University, NY March 2002 and The IEEE Communications Society, Denver April 2002. (pdf)
S. Doshi, T. X Brown, ``Minimum Energy Routing Schemes for a Wireless Ad Hoc Network,'' submitted 7/01 to IEEE INFOCOM, July 2002, NY,NY. (pdf)
T. X Brown, ``Ad Hoc Resource Allocation in Cellular Systems," submitted 8/01 to ICC 2002, April, NY,NY. (pdf)
S. Doshi, T. X Brown, ``Design Considerations for an On-demand Minimum Energy Routing Protocol for a Wireless Ad Hoc Network,'' submitted 8/01 to ICC 2002, April, NY,NY. (pdf)
T. X Brown, H. N. Gabow, ``A comparison of energy aware routing objectives in a wireless ad hoc network,'' Proc. 39th Annual Allerton Conference on Communication, Control, and Computing, October 3-5, 2001. (pdf)
T. X Brown, H. N. Gabow, Q. Zhang, ``Maximum Flow-Life Curve for a Wireless Ad Hoc Network,'' Proc. of Symposium on Mobile Ad Hoc Networking and Computing, October 4-5, 2001. (pdf)
T. X Brown, ``Practical Cellular Performance Bounds via Shotgun Cellular System,'' IEEE J. Selected Areas of Communications, v. 18, n. 11, pp. 2443-2445, Nov. 2000. (pdf)
T. X Brown, ``Low Power Wireless Communication via Reinforcement Learning ,'' in Advances in Neural Information Processing Systems 12 S.A. Solla, T.K. Leen and K.-R. Muller (eds.), pp. 893-899 MIT Press (2000). (pdf)
T. X Brown, ``Dynamic Channel Assignment in Shotgun Cellular Systems,'' in Proc. f 1999 Radio and Wireless Conference (RAWCON), IEEE, 1999. pp. 147-150. (pdf)
T. X Brown, ``Analysis and Coloring of a Shotgun Cellular System,'' in Proc. of 1998 Radio and Wireless Conference (RAWCON), IEEE, 1998. pp. 51-54. (postscript)
T. X Brown, S. Mohan, ``A Mobility Management Strategy for Personal Communications Systems,'' IEEE Trans. on Veh. Tech.. v. 46, n. 2, pp. 269-278, 1997. (abstract,pdf)
Y. N. Doganata, T. X Brown, and E. C. Posner, ``Call Setup Strategy Tradeoffs for Universal Digital Portable Communications,'' Computer Networks and ISDN-Systems, North Holland, Vol. 20, pp. 455-464, 1990. (abstract)

Neural Network Architecture

T. X Brown, ``A High Performance Two-Stage Packet Switch Architecture,'' IEEE T. on Comm. v. 47, n. 8, pp. 1792-1795, Dec. 1999. (pdf)
A. Jayakumar, T. X Brown, and J. Alspector, ``A Low-Power Adaptive Non-Linear Equalizer Structure,'' patent 5,504,780, April 2, 1996. (Patent Text)
T. X Brown, ``A Technique for Mapping Optimization Solutions into Hardware,'' in Proc. of IWANNT2, ed. J. Alspector, et al., Erlbaum, 1995. pp. 129-136. (abstract,pdf)
T. X Brown, ``Neural Networks for Switching,'' in Neural Networks in Telecommunications, eds. B. Yuhas, et al. Kluwer, Boston, 1994. pp. 11-36. (abstract, Postscript (7MB))
T. X Brown, ``A Three-Stage Switch Path-Finder,'' Bellcore Internal Memo, Oct. 1993. (postscript)
S. P. Eberhardt, R. Tawel, T. X Brown, T. Daud and A. P. Thakoor, ``Analog VLSI Neural Networks: Implementation Issues and Examples in Optimization and Supervised Learning,'' IEEE Industrial Electronics, Vol. 39, No. 6, pp. 552-564, 1992 (abstract)
T. X Brown, M. D. Tran, T. Duong, T. Daud and A. P. Thakoor, ``Cascaded VLSI Neural Network Chips: Hardware Learning for Pattern Recognition and Classification,'' Simulation, Vol. 58, No. 5, pp. 340-347, 1992 (abstract)
T. X Brown, ``Calculating Necessary Neuron Gains for Winner-Take-All Networks'' NASA Tech Briefs, NPO-18640 Aug. 1991 (abstract)
S. P. Eberhardt, T. Daud, T. X Brown, and A. P. Thakoor, ``Competitive Neural Architecture for Hardware Solution to the Assignment Problem,'' Neural Networks, Vol. 14, pp. 431-442. 1991. (abstract)
T. X Brown, ``Neural Networks Design for Switching Network Control,'' Caltech Ph.D. Thesis, 1991. 98p. (pdf) Sorry, original figures lost but see postscript.
T. X Brown and K. H. Liu, ``Neural Network Design of a Banyan Network Controller,'' IEEE J. of Selected Areas in Comm., Vol. 8, No. 8, pp. 1428-1438, 1990. (abstract)
T. X Brown, ``Neural Networks for Switching,'' IEEE Comm. Mag. Vol. 27, No. 11 pp. 72-81, 1989. (abstract)

Neural Network Learning

T.X Brown, ``Direct Classification of Indirect Data,'' in Advances in Neural Information Processing Systems 13 T.K. Leen, T. Dietterich, V. Tresp (eds.), MIT Press (2001). (pdf)
T. X Brown, ``Neural Networks for Adaptive Equalization,'' in Proc. of IWANNT, ed. J. Alspector et al., Erlbaum, 1993, pp. 27-33. (abstract)
T. X Brown, J. S. Judd, ``Defining the Easy/Hard Learning Boundary'' NASA Tech Briefs, NPO-19045 Jan. 1993 (abstract)
T. X Brown, M. D. Tran, T. Duong, T. Daud and A. P. Thakoor, ``Cascaded VLSI Neural Network Chips: Hardware Learning for Pattern Recognition and Classification,'' Simulation, Vol. 58, No. 5, pp. 340-347, 1992 (abstract)

Other Publications

J. Alspector, R. Goodman, and T. X Brown, eds. Proc. of the International Workshop on Applications of Neural Networks to Telecommunications (IWANNT), Erlbaum, Hillsdale NJ, 1993. 310p. (abstract)
J. Alspector, R. Goodman, and T. X Brown, eds. Proc. of the International Workshop on Applications of Neural Networks to Telecommunications 2 (IWANNT2), Erlbaum, Hillsdale NJ, 1995. (abstract)
J. Alspector, R. Goodman, and T. X Brown, eds. Proc. of the International Workshop on Applications of Neural Networks to Telecommunications 3 (IWANNT3), Erlbaum, Hillsdale NJ, 1997. 292. (abstract)
A. E. Attard, T. X Brown, ``Experimental Observations of Trapping Levels in BSO,'' Applied Optics, vol. 25, no. 18, pp. 3253-3259. 1986. (abstract)

Last updated 06/7/06