Robust Interference Mitigation and Spread Spectrum Signaling

Inter-Cell Interference Cancellation in CDMA Array Systems by Independent Component Analysis

The most important use of a spread spectrum communication system is that of interference mitigation. In fact, a spread spectrum communication system has an inherent temporal interference mitigation capability, usually called a processing gain. This gain enables the system to work properly in many cases. At times, however, the interference can be too strong, or the requirements for the link qual...

Robust Adaptive Spread-spectrum Receivers: Smart Antenna/space Timer Interference Mitigation Techniques

Adaptive Frequency Hopping for Bluetooth Robust to Co-channel Interference

In this paper, we consider the mitigation of cochannel interference in Bluetooth by means of adaptive frequency hopping (FH). Prior to sending packets, the proposed scheme classifies whether the next FH channel is in use by other signals or not. It also periodically classifies channels occupied by the WLAN signal to change the hopping frequency. For fast classification of busy channels, it divi...

TRANSFORM DOMAIN LMS CONVERGENCE IN TONE INTERFERENCEMichael

Direct-sequence spread spectrum (DSSS) signaling techniques are often used in conjunction with digital signal processors to combat undesired interference in both military and civilian communications systems. Although spread spectrum signals are inherently robust with respect to non-white interference, the extent to which such interference aaects communications reliability depends on the system'...

“Issues and Performance Study of Jammer Suppression in Direct Sequence Spread Spectrum Communications using Fast ICA”

Independent Component Analysis (ICA) technique separates mixed signals blindly without any information of mixing system. The present work studies and analyses the issues involved in interference rejection in direct sequence spread spectrum communication systems based on Independent Component Analysis technique. The ICA technique tries to separate the unwanted interfering signal from the desired...