Table 5 Comparison of resource utilization for OFDMA and OWDMA processors
Technique | Architecture | N(size of computation) | No. of CLB slices | No. of LUT slices | BRAM | DSP slices | Time (μs) |
|---|---|---|---|---|---|---|---|
OFDMA processing | R2 | 256 | 842 | 650 | 3 | 3 | 4.18 |
R2L | 1,000 | 1,025 | 839 | 3 | 3 | 31.58 | |
R2 | 1,106 | 882 | 3 | 6 | 18.63 | ||
R2L | 2,000 | 1,137 | 882 | 5 | 3 | 66.74 | |
R2 | 1,082 | 952 | 5 | 6 | 39.41 | ||
Proposed OWDMA processing | Parallel and pipelined | 256 | 614 | 355 | 3 | 32 | 0.91 |
Parallel and pipelined | 1,000 | 1,338 | 1,042 | 3 | 32 | 3.61 | |
| Â | Parallel and pipelined | 2,000 | 1,160 | 848 | 5 | 32 | 7.26 |