| Version 3.6 (R2007b) Communications Blockset™ Software Release Notes Release Notes | |
This table summarizes what's new in Version 3.6 (R2007b):
| New Features and Changes | Version Compatibility Considerations | Fixed Bugs and Known Problems | Related Documentation at Web Site |
|---|---|---|---|
| Yes Details below | Yes—Details labeled as Compatibility Considerations, below. See also Summary. | Bug Reports Includes fixes. | Printable Release Notes: PDF Current product documentation |
New features and changes introduced in this version are
Reed Solomon and BCH Blocks Enhanced with Punctures and Erasures
Integer to Bit Converter and Bit to Integer Converter Blocks Enhanced
The BPSK Demodulator Baseband and QPSK Demodulator Baseband blocks are enhanced with fixed-point capabilities and run significantly faster in many hard-decision use cases. The M-PSK Demodulator Baseband block is enhanced with fixed-point capabilities for M=8. See individual reference pages for floating-point and fixed-point signal-flow diagrams.
The Integer-Input RS Encoder, Binary-Input RS Encoder, and BCH Encoder blocks are enhanced with punctures.
The Integer-Output RS Decoder, Binary-Output RS Decoder, and BCH Decoder blocks are enhanced with punctures and erasures.
commrseras illustrates Reed-Solomon coding with erasures, punctures, and shortening.
commdvbc models part of the ETSI (European Telecommunications Standards Institute) EN 300 429 standard for cable system transmission of digital television signals.
commncopnseqdither illustrates the use of pseudorandom noise sequences and multi-stage phase quantization in the design of numerically controlled oscillators. Simulink Fixed Point is needed to run this demo.
commwman80216d_stbc represents an end-to-end baseband model of the physical layer of a wireless metropolitan area network (WMAN) according to the IEEE 802.16-2004 standard.
These can be accessed through the demos pane of the Help browser, or by typing the model name (e.g., commncopnseqdither) at the command line.
PN Sequence Generator block is enhanced with bit-packing options and smallest integer output data type mode.
The M-PSK TCM Encoder, Rectangular QAM TCM Encoder, and General TCM Encoder blocks are enhanced with options to terminate at the zero state.
The Integer to Bit Converter and Bit to Integer Converter blocks can now handle Number of bits per integer values up to 32.
The Find Delay block is enhanced to support unsigned integer inputs.
The algorithm of the TCM decoder blocks (M-PSK TCM Decoder, Rectangular QAM TCM Decoder, and General TCM Decoder) is updated to be consistent with the Viterbi Decoder block's decoding algorithm.
Due to the stochastic nature of the output of these blocks, the exact results from these blocks may be different from those of previous releases.
| Version 4.0 (R2008a) Communications Blockset™ Software Release Notes | Version 3.5 (R2007a) Communications Blockset™ Software Release Notes | |
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