References | TCAS-II 2010 [17] | DATE 2009 [18] | TVLSI 2010 [19] | JSSC 2010 [20] | JSSC 2011 [21] | TVLSI 2011 [22] | TVLSI 2011 [9] | TVLSI 2013 [5] | Proposed Work |
Modulation | 16-QAM | 64-QAM | 64-QAM | (4-64) QAM | 64-QAM | (16-64) QAM | 64-QAM | 64-QAM | 64-QAM |
Antenna | 4 × 4 | 4 × 4 | 4 × 4 | 4 × 4 - 8x8 | 4 × 4 | 4 × 4 | 4 × 4 | 4 × 4 | 4 × 4 |
Method | SISO-SD | Sys. Like Detection | K-Best | MBF-FD(SD) | SISO MMSE PIC | MMF-LSD | K-Best | Modified K-Best | MPED based K-Best |
Domain | Complex | Complex | Real | Complex | Complex | Real | Real | Complex | Complex |
K-value | N/A | N/A | 5-64 | N/A | N/A | N/A | 10 | 10 | 8 |
Process size | 90 nm | 45 nm | 65 nm | 0.13 µm | 90 nm | 0.18 µm | 0.13 µm | 0.13 µm | 0.13 µm |
fmax (MHz) | 250 | 574.7 | 158 | 198 | 568 | 250 | 282 | 417 | 435 |
Throughput (Mb/s) | 90 | 215 | 732 - 100 | 285 - 431 | 757 | 31.7 - 146.3 | 675 | 1000 | 1100 |
Gate count (kG) | 96 | 33.1 | 1760 | 350 | 410 | 25.4 - 48.2 | 114 | 340 | 328 |
NHE | 1.6 | 0.45 | 4.81 - 35.2 | 1.23 - 0.81 | 0.78 | 0.58 - 0.24 | 0.17 | 0.34 | 0.3 |
Energy/bit | N/A | N/A | N/A | N/A | 250 PJ/b | N/A | 200 pJ/b | 110 pJ/b | 100 pJ/b |
Power (mW) | N/A | N/A | 165 | 57-74 | 189.1 | 57-90 | 135 | 1700 | 1684 |
Latency (µs) | N/A | N/A | N/A | N/A | N/A | N/A | 0.6 | 0.36 | 0.27 |
Hard/soft | Soft | Soft | Hard | Soft | Soft | Soft | Hard | Hard | Hard |