Table 1 Comparative evaluation of CR MAC protocols
From: A survey on MAC protocols for complex self-organizing cognitive radio networks
Features | CREAM | OC-MAC | SCA-MAC | A-MAC | F2-MAC | DNG-MAC |
|---|---|---|---|---|---|---|
Energy detection | Not discussed | Cyclo- stationery | Not discussed | Not discussed | Energy detection | |
Acknowledgement after Tx | No | Yes | Yes | No | No | No |
Avoidance of multi-channel hidden terminal (Adamis et al. 2007) | No | Not addressed | Not addressed | No | Yes | Yes |
Control channel | Assumed | Dedicated | GCCC | Non-GCCC | Dedicated | Non-GCCC |
Best channel criteria | Arbitrary | data rate | arbitrary | Channel rank | Not discussed | Arbitrary |
Multi-channel MAC (BolÃvar et al. 2010) | Yes | Yes | Yes | Yes | Yes | Yes |
Physical layer parameters (Wang et al. 2008) | DSSS | Not discussed | Not discussed | DSSS | Not discussed | DSSS |
Use of backup data channel | No | No | Yes | Yes | No | No |
Spectrum access | 802.11 DCF | 802.11 DCF | CSMA/CA | 802.11 DCF | CSMA/CA | CSMA/CA |
Number of transceivers | Single | Single | Single | Single | Multiple | Single |
Number of control frames | 4 | 3 | 4 | 4 | 5 | 2 |