A denoising source separation based approach to interference cancellation for DS-CDMA array systems

Raju, K.; Särelä, Jaakko

doi:10.1109/acssc.2004.1399313

Cited by 8 publications

(9 citation statements)

References 8 publications

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“…In addition, our scheme only requires two receive antennas, but the number of antennas, which the detector in [15] requires, is larger than the number of paths of the multi-path channel. Although the detectors proposed in [17,18] are also valid for both downlink and uplink of DS-CDMA system, the assumption that the jamming keeps constant during one symbol duration restricts their implementation.…”

Section: Related Workmentioning

confidence: 98%

“…Investigations on blind MUD of DS-CDMA systems in the presence of hostile jamming have been carried out in [14][15][16][17][18]. They can be divided into two categories.…”

Section: Related Workmentioning

confidence: 99%

“…They can be divided into two categories. One category detectors are only valid for downlink of CDMA systems, such as the detectors proposed in [14,15]. These two schemes are ICA-assisted jamming cancellers, and require an antenna-array in receiver.…”

Section: Related Workmentioning

confidence: 99%

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Dual‐antenna‐based blind joint hostile jamming cancellation and multi‐user detection for uplink of asynchronous direct‐sequence code‐division multiple access systems

Zhang

Cui

2013

IET Communications

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The authors investigate the problem of blind multi-user detection (MUD) for uplink of asynchronous direct-sequence codedivision multiple access (DS-CDMA) systems with hostile jamming. To cope with the lack of prior knowledge of spread signals, hostile jamming and channel state information, the authors propose a scheme based on blind source separation (BSS) to solve this problem. Dual receive antennas are used in the proposed scheme. By exploiting the structure of the two received signals, a BSS model with dependent sources is formed, and then blind hostile jamming cancellation and MUD are obtained by solving this BSS problem. The proposed scheme does not require to know any information about the hostile jamming, and can work well under multiple kinds of hostile jamming. Simulation results further demonstrate that if such proposed approach is used to cancel hostile jamming and make MUD, then the bit-error-rate performance can be substantially improved as compared with earlier detectors.

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Section: Related Workmentioning

confidence: 98%

“…Investigations on blind MUD of DS-CDMA systems in the presence of hostile jamming have been carried out in [14][15][16][17][18]. They can be divided into two categories.…”

Section: Related Workmentioning

confidence: 99%

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Dual‐antenna‐based blind joint hostile jamming cancellation and multi‐user detection for uplink of asynchronous direct‐sequence code‐division multiple access systems

Zhang

Cui

2013

IET Communications

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“…There are several reasons for applying the BSS in communication systems, including the increasing the system capacity by eliminating or reducing training sequences [5]- [6].…”

Section: I-introductionmentioning

confidence: 99%

“…For example, in the GSM system around 20% of the symbols are training symbols [6]. Hence, by using the blind methods, the training overhead can be eliminated, data symbols can be sent during this period instead of training sequences.…”

Section: I-introductionmentioning

confidence: 99%

BPSK receiver based on independent component analysis

Shakir¹,

Sadkhan

Akkar

2012

2012 International Conference on Future Communication Networks

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This work presenting a blind wireless receiving system based on the Blind Source Separation (BSS) for blind estimation, and detection the digital Binary Phase Shift Keying (BPSK) signals over quasi-stationary fading channel. The estimation process is performed based the received observation signals only, without prior information about the original signals or about the propagation channel. Conventional methods estimate these signals by taking into account the prior information about the signals and about the propagation channel, this is usually done using the training sequences, which usually costs a bandwidth.

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