Blind adaptive space-time receiving and transmitting diversities for multiuser DS-CDMA systems

Jaeyoung Kwak, I-Tai Lu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Blind adaptive space-time processing techniques are developed for both uplink reception and downlink transmission in multiuser TDD DS-CDMA systems to overcome multipath fading effect and multiple access interference. The system consists of a space-time array, a decorrelator, and a weight-adapter. For uplink reception, a hybrid combination of constant modulus algorithm and decision-directed algorithm approach is employed for blind adaptation. For multi-input-multi-output channel estimation, minimum mean squared error estimation is made using respread sequences of the decision symbols as references. For downlink multiuser transmission, the generalized zero-forcing approach is developed for pre-equalization and pre-interference-cancellation.

Original languageEnglish (US)
Title of host publicationProceedings - IEEE Military Communications Conference MILCOM
PublisherIEEE
Pages924-928
Number of pages5
Volume2
StatePublished - 1999
EventIEEE Military Communications Conference (MILCOM 1999) - Atlantic City, NJ, USA
Duration: Oct 31 1999Nov 3 1999

Other

OtherIEEE Military Communications Conference (MILCOM 1999)
CityAtlantic City, NJ, USA
Period10/31/9911/3/99

Fingerprint

Code division multiple access
Space time adaptive processing
Multiple access interference
Multipath fading
Channel estimation
Error analysis

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Electrical and Electronic Engineering

Cite this

Kwak, J., & Lu, I-T. (1999). Blind adaptive space-time receiving and transmitting diversities for multiuser DS-CDMA systems. In Proceedings - IEEE Military Communications Conference MILCOM (Vol. 2, pp. 924-928). IEEE.

Blind adaptive space-time receiving and transmitting diversities for multiuser DS-CDMA systems. / Kwak, Jaeyoung; Lu, I-Tai.

Proceedings - IEEE Military Communications Conference MILCOM. Vol. 2 IEEE, 1999. p. 924-928.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kwak, J & Lu, I-T 1999, Blind adaptive space-time receiving and transmitting diversities for multiuser DS-CDMA systems. in Proceedings - IEEE Military Communications Conference MILCOM. vol. 2, IEEE, pp. 924-928, IEEE Military Communications Conference (MILCOM 1999), Atlantic City, NJ, USA, 10/31/99.
Kwak J, Lu I-T. Blind adaptive space-time receiving and transmitting diversities for multiuser DS-CDMA systems. In Proceedings - IEEE Military Communications Conference MILCOM. Vol. 2. IEEE. 1999. p. 924-928
Kwak, Jaeyoung ; Lu, I-Tai. / Blind adaptive space-time receiving and transmitting diversities for multiuser DS-CDMA systems. Proceedings - IEEE Military Communications Conference MILCOM. Vol. 2 IEEE, 1999. pp. 924-928
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