Version 3.4 (R2006b) Communications Toolbox™ Software Release Notes Release Notes

Version 3.4 (R2006b) Communications Toolbox™ Software Release Notes

This table summarizes what's new in Version 3.4 (R2006b):

New features and changes introduced in this version are

Theoretical BER Results Added

Theoretical error control coding BER results for Hamming, Golay, and Reed Solomon codes are now available in the function bercoding.

Bitwise Soft-Decision Outputs for PSK and QAM Demodulators

Bitwise soft-decision outputs are enabled for the PSK and QAM demodulation through the use of new PSK and QAM modem objects. See Object-Based PSK and QAM Modulation and Demodulation.

Added LDPC Encoder and Decoder Objects

The objects fec.ldpcenc and fec.ldpcdec respectively encode and decode LDPC codes.

Line-of-Sight Doppler Shift Added to Rician Channel

The property DirectPathDopplerShift, which specifies the maximum Doppler shift of the line-of-sight path, is added to the Rician channel object.

Object-Based PSK and QAM Modulation and Demodulation

PSK and QAM modulation and demodulation is now done using the new classes modem.pskmod, modem.pskdemod, modem.qammod, and modem.qamdemod.

Compatibility Considerations

See Using Modem Objects and individual reference pages for details.

QAM and PSK Modulation and Demodulation Functions Obsoleted

The functions pskmod, pskdemod, qammod, and qamdemod are obsolete and may be removed in the future.

Compatibility Considerations

Use the new object based PSK and QAM modulation and demodulation objects instead. See Object-Based PSK and QAM Modulation and Demodulation.

Version 3.5 (R2007a) Communications Toolbox™ Software Release Notes

Version 3.3 (R2006a) Communications Toolbox™ Software Release Notes