Adaptive Signal Processing Techniques for Robust, High Capacity Spread-Spectrum Multiple Access

Abstract : This project is concerned with signal processing and coding techniques that can improve the performance of spread-spectrum, multiple-access systems. Specific topics investigated during the course of this project include the following: (1) reduced-rank interference suppression; (2) combined coding and interference suppression (3) joint transmitter-receiver optimization in the presence of multiple-access interference; and (4) the effect of limited feedback on the performance of joint transmitter-receiver optimization schemes. The theory of large random matrices was used to analyze the performance of both interference suppression and interference avoidance schemes. For example, the authors have used these techniques to analyze the performance of adaptive reduced- and full-rank least squares filtering for interference suppression with limited training. This analysis shows the effects of algorithm parameters, which determine the initialization and data windowing, along with system load and noise level. Other contributions include optimization of the ratio of pilot-to-data power and code rate with adaptive linear interference suppression, and signature optimization for combined interference avoidance and pre-equalization of multi-path. Transmitter optimization with limited feedback also has been considered, and bounds on the achievable performance as a function of feedback bits per dimension have been obtained. This project has resulted in a patent application for an adaptive reduced-rank filter, a paper award (for work on reduced-rank filtering), and numerous journal and conference publications on the preceding topics. A list of 34 journal articles, papers in review, and conference papers is included.

[1]  Michael L. Honig,et al.  Transmitter diversity for DS-CDMA with MMSE decision feedback , 2000, Globecom '00 - IEEE. Global Telecommunications Conference. Conference Record (Cat. No.00CH37137).

[2]  Iain B. Collings,et al.  General asymptotic LMMSE SINR and spectral efficiency for multi-user multi-signature MC-CDMA in multipath rayleigh fading , 2003 .

[3]  Michael L. Honig,et al.  Signature sequence adaptation for DS-CDMA with multipath , 2002, IEEE J. Sel. Areas Commun..

[4]  Michael L. Honig,et al.  Performance of adaptive iterative multiuser parallel decision feedback with different code rates , 2001, ICC 2001. IEEE International Conference on Communications. Conference Record (Cat. No.01CH37240).

[5]  Michael L. Honig,et al.  Spreading code adaptation for DS-CDMA with multipath , 2000, MILCOM 2000 Proceedings. 21st Century Military Communications. Architectures and Technologies for Information Superiority (Cat. No.00CH37155).

[6]  Michael L. Honig,et al.  Performance of reduced-rank linear interference suppression , 2001, IEEE Trans. Inf. Theory.

[7]  Iain B. Collings,et al.  Asymptotic SINR analysis of multi-user MC-CDMA in Rayleigh fading , 2003, IEEE International Conference on Communications, 2003. ICC '03..

[8]  Michael L. Honig,et al.  Rate maximization for multi-code CDMA with optimized signatures , 2001, 2001 MILCOM Proceedings Communications for Network-Centric Operations: Creating the Information Force (Cat. No.01CH37277).

[9]  J. S. Goldstein,et al.  A new backward recursion for the multi-stage nested Wiener filter employing Krylov subspace methods , 2001, 2001 MILCOM Proceedings Communications for Network-Centric Operations: Creating the Information Force (Cat. No.01CH37277).

[10]  M. Honig,et al.  Asymptotic performance of MIMO wireless channels with limited feedback , 2003, IEEE Military Communications Conference, 2003. MILCOM 2003..

[11]  Michael L. Honig,et al.  Adaptive reduced-rank interference suppression based on the multistage Wiener filter , 2002, IEEE Trans. Commun..

[12]  Michael L. Honig,et al.  Performance of adaptive reduced-rank interference suppression in the presence of dynamic fading , 2000 .

[13]  Michael L. Honig,et al.  Adaptive multiuser parallel-decision-feedback with iterative decoding , 2000, 2000 IEEE International Symposium on Information Theory (Cat. No.00CH37060).

[14]  Michael L. Honig,et al.  Power and signature optimization for downlink CDMA , 2002, 2002 IEEE International Conference on Communications. Conference Proceedings. ICC 2002 (Cat. No.02CH37333).

[15]  Michael L. Honig,et al.  Optimization of the pilot-to-data power ratio for DS-CDMA with linear interference suppression , 2000, 2000 IEEE Wireless Communications and Networking Conference. Conference Record (Cat. No.00TH8540).

[16]  Iain B. Collings,et al.  Asymptotic SINR analysis of single-user MC-CDMA in Rayleigh fading , 2002, IEEE Seventh International Symposium on Spread Spectrum Techniques and Applications,.

[17]  Michael L. Honig.  Adaptive signal processing techniques for short-code CDMA , 2000, Proceedings of the IEEE 2000 Adaptive Systems for Signal Processing, Communications, and Control Symposium (Cat. No.00EX373).

[18]  Laurence B. Milstein,et al.  Performance analysis of MMSE receivers for DS-CDMA in frequency-selective fading channels , 2000, IEEE Trans. Commun..

[19]  Michael L. Honig,et al.  Adaptive, iterative, reduced-rank equalization for MIMO channels , 2002, MILCOM 2002. Proceedings.

[20]  Michael L. Honig,et al.  Minimum feedback rates for multicarrier transmission with correlated frequency-selective fading , 2003, GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489).

[21]  Michael L. Honig,et al.  Signature optimization for DS-CDMA with limited feedback , 2002, IEEE Seventh International Symposium on Spread Spectrum Techniques and Applications,.

[22]  V. Scherman,et al.  Conference Papers , 2018, The Dostoevsky Journal.

[23]  M. Honig,et al.  Adaptive techniques for multiuser CDMA receivers , 2000, IEEE Signal Processing Magazine.

[24]  Michael L. Honig,et al.  Interference avoidance for DS-CDMA with limited feedback , 2003, IEEE International Symposium on Information Theory, 2003. Proceedings..

[25]  Michael L. Honig,et al.  Adaptive reduced-rank interference suppression with adaptive rank selection , 2000, MILCOM 2000 Proceedings. 21st Century Military Communications. Architectures and Technologies for Information Superiority (Cat. No.00CH37155).

[26]  Michael L. Honig,et al.  Performance of coded DS-CDMA with pilot-assisted channel estimation and linear interference suppression , 2002, IEEE Trans. Commun..

[27]  Michael L. Honig,et al.  Asymptotic capacity of multicarrier transmission over a fading channel with feedback , 2003, IEEE International Symposium on Information Theory, 2003. Proceedings..