A World of Bits

A companion to Sorta standard wireless research

Interference
Avoidance

Convergence via class warfare

Radios that iteratively adapt their own codewords — greedily, selfishly, with no central authority — and still converge to a jointly optimal allocation. It works, it converges, and the convergence argument goes by the name class warfare.

2003 IEEE Marconi Prize Paper Award

Wireless Systems and Interference Avoidance

C. Rose, S. Ulukus and R. Yates, IEEE Transactions on Wireless Communications 1(3), p. 415, July 2002.

Books & chapters

The long-form versions

  • 2009 Interference Avoidance for CDMA Systems D. Popescu, S. Ulukus, C. Rose and R. Yates, in Advances in Multiuser Detection (M.L. Honig, ed.), Chapter 7, pp. 365–416, Wiley.
  • 2004 Interference Avoidance Methods for Wireless Systems D.C. Popescu and C. Rose, Kluwer Academic Publishers, Information Technology: Transmission, Processing and Storage series, ISBN 0-306-48188-X, March 2004.
  • 2002 Interference Avoidance for Wireless Systems D.C. Popescu and C. Rose, in the Wiley Encyclopedia of Telecommunications (J. Proakis, ed.), vol. 2, pp. 1115–1121, December 2002.

Journal papers

The refereed record

  • 2007 Interference Avoidance and Multiaccess Vector Channels D. Popescu, O. Popescu and C. Rose, IEEE Transactions on Communications 55(8), pp. 1466–1471, August 2007.
  • 2007 Simultaneous Water Filling in Mutually Interfering Systems O. Popescu, D.C. Popescu and C. Rose, IEEE Transactions on Wireless Communications 6(3), pp. 1102–1113, March 2007.
  • 2005 Codeword Optimization for Uplink CDMA Dispersive Channels D.C. Popescu and C. Rose, IEEE Transactions on Wireless Communications 4(4), pp. 1563–1574, July 2005.
  • 2004 Greedy SINR Maximization in Collaborative Multi-Base Wireless Systems O. Popescu and C. Rose, EURASIP Journal on Wireless Communications and Networking 2004(2), pp. 201–209.
  • 2004 Sum Capacity and TSC Bounds in Collaborative Multi-Base Wireless Systems O. Popescu and C. Rose, IEEE Transactions on Information Theory 50(10), pp. 2433–2438, October 2004.
  • 2004 Maximizing the Determinant for a Special Class of Block-Partitioned Matrices O. Popescu, C. Rose and D.C. Popescu, Mathematical Problems in Engineering 2004(1), pp. 49–61.
  • 2003 Interference Avoidance and Multiuser MIMO Systems D.C. Popescu and C. Rose, International Journal of Satellite Communications and Networking 21(1), pp. 143–161.
  • 2002 ★ Wireless Systems and Interference Avoidance 2003 IEEE Marconi Prize Paper Award. IEEE Transactions on Wireless Communications 1(3), p. 415, July 2002. Also as PostScript.
  • 2001 Sum Capacity and Interference Avoidance: Convergence Via Class Warfare IEEE Transactions on Information Theory, September 2001. Also in HTML. Special thanks to Pablo Alejandro Anigstein, then working with Venkat Anantharam at Berkeley, who was kind enough to point out a bonehead error in one of the proofs — which led to other revisions as well. And special thanks to the anonymous IT Transactions reviewers, whose comments led to less handwaving (see Appendix A and the revised "formal" algorithm) and to a way of getting boldface Greek letters in math mode.

Conference papers

The paper storm

  • DySPAN '05 Intelligent Power Allocation Strategies in an Unlicensed Spectrum N. Clemens and C. Rose, Baltimore, November 2005.
  • VTC '05 Interference Avoidance for Capacity Optimization in Mutually Interfering Wireless Systems O. Popescu, D.C. Popescu and C. Rose, Dallas, September 2005.
  • Talk Cognitive Radio Spectrum Workshop, 17 May 2005.
  • CISS '05 Greedy Interference Avoidance in Non-Collaborative Multi-Base Wireless Systems O. Popescu, D.C. Popescu and C. Rose, Johns Hopkins, March 2005.
  • Globecom '04 Signal Space Partitioning Versus Simultaneous Water Filling for Mutually Interfering Systems O. Popescu, C. Rose and D.C. Popescu, vol. 5, pp. 3128–3132, Dallas, December 2004.
  • VTC '04 Interference Avoidance Versus Iterative Water Filling in Multiaccess Vector Channels D.C. Popescu, O. Popescu and C. Rose, vol. 3, pp. 2058–2062, Los Angeles, September 2004.
  • CISS '04 Strong Interference and Spectrum Warfare O. Popescu, C. Rose and D.C. Popescu, pp. 83–88, Princeton, March 2004.
  • Globecom '03 Water Filling May Not Good Neighbors Make O. Popescu and C. Rose, vol. 3, pp. 1766–1770, San Francisco, December 2003.
  • VTC '03 Interference Avoidance and Power Control for Uplink CDMA Systems D.C. Popescu and C. Rose, vol. 3, pp. 1473–1477, Orlando, October 2003.
  • ICASSP '03 Multiuser MIMO Systems and Interference Avoidance D.C. Popescu and C. Rose, vol. IV, pp. 828–831, Hong Kong, April 2003. Invited paper.
  • ISIT '02 Interference Avoidance and Multiaccess Vector Channels D.C. Popescu, O. Popescu and C. Rose, p. 499, Lausanne, July 2002.
  • CISS '02 Codeword Optimization for Asynchronous CDMA Systems Through Interference Avoidance D.C. Popescu and C. Rose, Princeton, March 2002.
  • Asilomar '01 Interference Avoidance Applied to Multiaccess Dispersive Channels D.C. Popescu and C. Rose, vol. II, pp. 1200–1204, Pacific Grove, November 2001.
  • Allerton '01 Interference Avoidance and Sum Capacity for Multibase Systems O. Popescu and C. Rose, pp. 1036–1045, Monticello, October 2001.
  • Allerton '01 Minimizing Total Squared Correlation with Multiple Receivers O. Popescu and C. Rose, pp. 1063–1072, Monticello, October 2001.
  • Allerton '01 Fading Channels and Interference Avoidance D.C. Popescu and C. Rose, pp. 1073–1074, Monticello, October 2001.
  • CISS '01 A New Approach to Multiple Antenna Systems D.C. Popescu and C. Rose, vol. 2, pp. 868–871, Johns Hopkins, March 2001.
  • ICASSP '00 Codeword Quantization for Interference Avoidance D.C. Popescu and C. Rose, vol. 6, pp. 3670–3673, Istanbul, June 2000.
  • Allerton '99 Interference Avoidance and Dispersive Channels: A New Look at Multicarrier Modulation D.C. Popescu and C. Rose, pp. 505–514, Monticello, September 1999.
  • CISS '99 Emitter Localization in a Multipath Environment Using Extended Kalman Filter D.C. Popescu and C. Rose, vol. 1, pp. 147–150, Johns Hopkins, March 1999.
  • Preprint Codeword Tracking and Adaptation for Distributed Interference Avoidance
  • Talk Interference Avoidance and Universal Radios WINLAB Focus'99.
  • Poster ★ Dimitrie Popescu's second-place poster on dispersive channel interference avoidance AT&T Shannon Labs Student Day, October 1999.

Elsewhere

Other folks who have played with IA

  • ODU Dimitrie Popescu Old Dominion University.
  • Maryland Sennur Ulukus Distinguished University Professor and Chair of ECE.
  • Rutgers Roy Yates WINLAB. Distinguished Professor Emeritus.
  • Toronto Wei Yu
  • Illinois Pramod Viswanath Now at Princeton.
  • Berkeley Venkat Anantharam
  • Berkeley David Tse Now at Stanford.
  • Northwestern Mike Honig
  • Open spectrum David P. Reed
  • Software radio Vanu Bose Vanu, Inc. Vanu Bose died in 2017.
  • Talk Paul Baran's prescient IA and infostations talk 8th Conference on Next Generation Networks, Washington D.C., 9 November 1994.