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Amit Kansal

MathWorks

Last seen: 1 day ago |  Active since 2015

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Answered
Convolutional Coding/Decoding Using Matlab Functions
For the vitdec function, the "cont" (continuous) mode of operation incurs a delay which is why the decoded output has zeros. I...

3 years ago | 2

| accepted

Answered
How preamble signal is generated in Massive MIMO Hybrid Beamforming
The sequence selected in helperGenPreamble.m is based on the Long Training Field (LTF) used in WLAN (802.11) standards. It is ba...

5 years ago | 1

| accepted

Answered
Cannot reproduce 5G NR Polar Code performance using 5G Toolbox
One of the issues we realized was that even though the text and code in the example used QPSK, we had actually used BPSK for the...

6 years ago | 0

| accepted

Answered
How to encode uplink channel using 5G polar code?
Within the script NewRadio5GPolarCodingExample.m (line 223), please also update the CRC polynomial for the fcn call h5gCRCEncode...

6 years ago | 0

| accepted

Answered
Error in h5gPolarDecoder
Please check the LLR inputs provided to the decoder object - these need to be accurately scaled based on the noise variance mode...

6 years ago | 0

| accepted

Answered
channel coefficient in IEEE 802.11n channel models
For an 802.11n system, the receiver would include the channel estimation stage which would offer this matrix for every per-subca...

8 years ago | 1

Submitted


Soft-Decision Viterbi Decoding with Puncturing
Performs soft-decison Viterbi decoding with puncturing over an AWGN channel using Simulink(R).

8 years ago | 4 downloads |

Answered
Have You Used Comm.SphereDecoder System Object For Soft Output?
Couple of issues with the code. The Viterbi Decoder is set to the continuous operation which introduces a delay of tblen bits wh...

9 years ago | 1