Performance evaluation of power control bit detection for an adaptive SIC receiver and the IS-95 downlink

Cagley, R.E.; Shynk, J.J.

doi:10.1109/acssc.2001.986999

Cited by 2 publications

(2 citation statements)

References 7 publications

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“…Typically, the state of the long code for a base station being demodulated will be known. However, if this state is known only for the base station of interest (and not of the other base stations to be canceled in the SIC), the PCB locations must be estimated [12].…”

Section: Power Control Bitsmentioning

confidence: 99%

“…If PCBs are taken into account by the SIC during signal reconstruction, even with perfect detection of the bits and accurate amplitude estimation, a portion of the base station signal will still remain after cancellation. A discussion of the encoding process and the relative powers of the PCBs can be found in [12]. Assuming perfect estimation of the data bits and the amplitudes, the signal error power for the PCB minus the reconstructed signal is given by…”

Section: Power Control Bitsmentioning

confidence: 99%

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SINR Enhancement Techniques for an IS-95 Downlink SIC Receiver

Cagley

Shynk

Gooch³

2006

Wireless Pers Commun

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Due to near-far effects and multiple-access interference, several types of multiuser detectors have been developed in recent years to reliably demodulate user signals in a code-division multiple-access (CDMA) system. The downlink of Interim Standard 95 (IS-95) is particularly well suited to one such detector known as the successive interference canceler (SIC). In order to keep the receiver complexity low, entire base station signals are typically canceled in the receiver in a sequential manner. However, for the SIC to operate effectively, a base station signal that is being canceled must be reconstructed with enough accuracy such that sufficient interference power is removed for the subsequent base station to be reliably detected. If this is not possible, it may be necessary to employ techniques, specific to the signal format specified in the IS-95 downlink, which enhance the received signal-to-interference-plus-noise ratio (SINR). In this paper, we explore the performance gains achieved with several SINR enhancement techniques, and present computer simulations to demonstrate this improvement for example cochannel signal scenarios.

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Section: Power Control Bitsmentioning

confidence: 99%

Section: Power Control Bitsmentioning

confidence: 99%