Table 1 Characteristics of discussed distributed DSA protocols
From: A survey on dynamic spectrum access protocols for distributed cognitive wireless networks
Protocol | Spectrum access mode | Cooperation | Spectrum sharing mode | Dedicated CCC | Sensing technique | Imperfect sensing | Number of radios | Multi-channel hidden terminal problem | Channel aggregation | Energy efficiency |
|---|---|---|---|---|---|---|---|---|---|---|
DSA-MAC | Contention | No | Overlay | Yes, Licensed | Local | No | 2 | No | No | No |
DOSS-MAC | Contention | No | Overlay | Yes, Licensed | Local | No | 3 | No | No | No |
SRAC-MAC | Contention | No | Overlay | No | Local | No | 1 | Yes | Yes | No |
DCR-MAC | Contention | No | Overlay | Yes, Licensed | Cooperative | No | 2 | No | No | No |
HC-MAC | Contention | No | Overlay | Yes, Licensed | Local | No | 1 | No | Yes | No |
P-DSA | Contention | No | Overlay | Yes, Licensed | Local | No | 1 | No | Yes | No |
SMA | Contention | No | Overlay | No | Local | Yes | 1 | Yes | Yes | No |
CSS-RA | Contention | No | Overlay | Yes, Licensed | Cooperative | No | 1 | Yes | No | No |
CREAM-MAC | Contention | No | Overlay | Yes, Licensed | Local | Yes | 1 | No | Yes | No |
C-MAC | Slotted | No | Overlay | Yes, Unlicensed | Cooperative | No | 1 | No | No | No |
T-MAC | Slotted | No | Overlay | Yes, Licensed | Local | No | 1 | No | No | Yes |
O-MAC | Hybrid | No | Overlay | Yes, Licensed | Cooperative | No | 2 | No | Yes | No |
MC-MAC | Hybrid | Yes | Overlay | Yes, Licensed | Local | No | 2 | No | Yes | No |
SYN-MAC | Hybrid | No | Overlay | No | Local | No | 2 | No | No | No |
DH-MAC | Hybrid | No | Overlay | No | Local | No | 1 | Yes | No | No |
PLRC-DMAC | Hybrid | No | Overlay | Yes, Licensed | Local | No | 2 | No | No | Yes |
DC-MAC | Hybrid | No | Overlay | No | Local | Yes | 1 | No | No | No |
DA-OSA | Hybrid | No | Overlay | No | Local | No | 1 | No | Yes | No |
P-MAC | Contention | Yes | Underlay | Yes, Licensed | No | No | 2 | No | Yes | Yes |
MMAC-CR | Contention | No | Overlay | Yes, Licensed | Cooperative | No | 2 | No | No | Yes |
COMAC | Contention | No | Underlay | Yes, Licensed | No | No | > 2 | No | No | Yes |
DDMAC | Contention | Yes | Underlay | Yes, Licensed | No | No | > 2 | No | No | Yes |