LDPC IP Core User Guide

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ID 683381
Date 4/04/2022
Public
Document Table of Contents
Document Table of Contents x
Product Discontinuance Notification 2. LDPC IP EOL 2. About the LDPC IP Core 3. Getting Started with the LDPC IP Core 4. LDPC IP Core Specifications 5. Document Revision History A. LDPC IP Core Document Archive
2. About the LDPC IP Core x
2.1. LDPC IP Core Features 2.2. LDPC IP Device Family Support 2.3. LDPC IP Core Release Information 2.4. DSP Intel® FPGA IP Verification 2.5. LDPC IP Core Performance
3. Getting Started with the LDPC IP Core x
3.1. Installing and Licensing Intel® FPGA IP Cores 3.2. IP Catalog and Parameter Editor 3.3. Specifying the IP Core Parameters and Options ( Intel® Quartus® Prime Pro Edition) 3.4. Simulating Intel® FPGA IP Cores
3.1. Installing and Licensing Intel® FPGA IP Cores x
3.1.1. Intel® FPGA IP Evaluation Mode 3.1.2. LDPC IP Core Intel® FPGA IP Evaluation Mode Timeout Behavior
3.3. Specifying the IP Core Parameters and Options ( Intel® Quartus® Prime Pro Edition) x
3.3.1. IP Core Generation Output ( Intel® Quartus® Prime Pro Edition)
4. LDPC IP Core Specifications x
4.1. LDPC IP Core Interfaces 4.2. LDPC IP Core Parameters
4.1. LDPC IP Core Interfaces x
4.1.1. Avalon Streaming Interfaces in DSP Intel FPGA IP 4.1.2. Clock and Reset Interfaces 4.1.3. LDPC IP Core Signals
4.1.3. LDPC IP Core Signals x
4.1.3.1. LDPC IP Core Backpressure
Product Discontinuance Notification
2. LDPC IP EOL
2. About the LDPC IP Core
3. Getting Started with the LDPC IP Core
4. LDPC IP Core Specifications
5. Document Revision History
A. LDPC IP Core Document Archive

2.5. LDPC IP Core Performance

Typical expected performance for a LDPC IP Core using the Quartus Prime software with Arria 10 (10AX115R2F40I1SG and 10AX115R4F40I3SG) devices.

The performance tables use the following parameters:

  • soft is Number of soft bits of the decoder variables
  • par is Parallelism
  • lps is Number of LLRs per input symbol
  • full is Full-streaming architecture
  • lay is Layered decoding
  • short is Shorten codeword
  • rate is Coding rate

Decoder

Table 3.  Decoder Performance for DOCSIS Standard
soft par lps Device Speed ALMs M20K fMAX
6 4 4 1 20,256 118 349
3 20,261 - 306
12 12 1 70,395 82 250
3 70,455 - 228
7 4 4 1 22,828 123 336
3 22,861 - 288
12 12 1 79,544 96 253
3 79,747 - 220
8 4 - 1 25,195 127 332
- 3 25,206 - 267
12 - 1 88,390 109 248
- 3 88,066 - 209
Table 4.  Decoder Performance for NASA Standard
soft par full lay speed ALMs M20K fMAX
6 4 0 0 1 47,704 44 351
3 47,723 - 298
1 1 41,896 26 354
3 41,935 - 312
1 0 1 59,688 44 292
3 59,730 - 263
1 1 54,217 26 307
3 54,191 - 266
12 0 0 1 83,371 115 274
3 83,404 - 225
1 1 68,013 58 291
3 68,061 - 244
1 0 1 90,664 115 237
3 90,778 - 206
1 1 75,666 58 271
3 75,565 - 212
20 0 1 1 90,117 96 279
3 90,082 - 243
1 1 96,575 - 217
3 96,703 - 195
7 4 0 0 1 54,812 55 324
3 54,769 - 277
1 1 47,746 33 342
3 47,821 - 310
1 0 1 66,513 55 271
3 66,484 - 253
1 1 60,191 33 310
3 60,119 - 255
12 0 0 1 96,921 134 252
3 96,934 - 218
1 1 77,783 67 289
3 77,955 - 243
1 0 1 103,427 134 208
3 103,649 - 197
1 1 85,297 67 252
3 85,182 204
20 0 1 1 103,554 112 259
3 103,655 - 218
1 1 109,648 - 219
3 109,908 - 181
Table 5.  Decoder Performance for WiMediaNormal codeword and device speed grade = 3. WiMedia designs require no M20Ks
soft par rate ALM fMAX
7 2 0.89 29,576 277
0.75 28,923 293
0.625 29,234 276
0.5 26,092 300
4 0.89 45,902 253
0.75 44,789 276
0.625 45,736 258
0.5 40,133 275
8 0.89 84,145 224
0.75 81,750 244
0.625 84,221 224
0.5 70,975 246
8 2 0.89 33,179 257
0.75 32,656 278
0.625 33,100 259
0.5 29,221 288
4 0.89 51,424 255
0.75 50,914 246
0.625 51,921 254
0.5 44,543 269
8 0.89 94,644 224
0.75 93,259 227
0.625 94,539 221
0.5 81,038 242

Encoder

Table 6.  Encoder Performance for NASA StandardRequires no M20Ks.
BPS speed ALMs fMAX
1 1 2,173 574
3 2,175 552
4 1 5,083 512
3 5,082 453
8 1 10,424 381
3 10,411 344
20 1 24,525 323
3 24,501 275
Table 7.  Encoder Performance for WiMedia StandardNormal codeword; variable coding rate.
BPS speed ALMs M20Ks fMAX
1 1 768 19 569
3 635 496
5 1 1,854 563
3 1,842 503
10 1 2,919 560
3 2,441 499
15 1 4,062 522
3 4,054 469
Table 8.  Encoder Performance for DVB Standard
short rate BPS speed ALMs M20K fMAX
0 1/4 1 1 12,540 1 561
3 12,516 478
10 1 13,245 458
3 13,246 400
20 1 14,184 421
3 14,185 350
8/9 1 1 3,869 538
3 3,840 497
10 1 3,869 538
3 3,840 497
20 1 6,774 501
3 6,784 409
1 1/4 1 1 3,352 571
3 3,353 527
10 1 3,612 511
3 3,611 493
20 1 3,935 558
3 3,933 476
8/9 1 1 570 582
3 569 570
10 1 990 568
3 975 524
20 1 1,788 486
3 1,793 490
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