Research Article
Hybrid Control of Contention Window and Frame Aggregation for Performance Enhancement in Multirate WLANs
Table 2
Performance validation of the hybrid mechanism as a solution to the problem of performance anomaly (Scenario 1).
| Criteria | DCF | Hybrid |
| Per-STA throughput (Mb/s) | | | STA1 ( = 6 Mb/s) | 2.142 | 1.267 | STA2 ( = 12 Mb/s) | 2.134 | 2.531 | STA3 ( = 24 Mb/s) | 2.141 | 5.047 | STA4 ( = 48 Mb/s) | 2.148 | 10.713 | Aggregate throughput (Mb/s) | 8.566 | 19.558 | Utilization | 0.801 | 0.919 | Fairness index | 0.726 | 0.997 |
|
|