Table 3.
Main Symbolic Notation of the NDACS Algorithm.
| Symbol | Definition |
|---|---|
| N | Number of nodes |
| ID | Node unique identifier |
| Rs | Node sensing radius |
| Rc | Node communication radius |
| Rcinit | Initial communication radius |
| Adjustable level of communication radius | |
| Bu | Accumulation of communication radius |
| Si | ID is i of node |
| D | Transmitting distance of the information package |
| P0 | Power threshold of packets can be received |
| F | Carrier frequency |
| Tp | Transmission delay of data transmission |
| K | Energy spreading factor |
| Me | Movement energy consumption of node |
| md | Node movement distance |
| mu | Energy consumption on unit moving distance |
| Ss | Set of sleep nodes |
| Sa | Set of active nodes |
| sleep_in | Set of sleep nodes inside the convex hull |
| sleep_out | Set of sleep nodes outside the convex hull |
| Sc | Network coverage area on process of convex hull activation |
| SCH | Area of 2d convex hull |
| SHole | Area of coverage holes |
| Rh | Empty circle radius |
| NA | Total number of active nodes |
| Nei_A | Active neighbor nodes set |
| Nei(fji) | Neighbor nodes set of node fji |
| NeigInterii+ 1 | Insertion of neighbor sleep nodes |
| {fji} | Parent node set of subtree |
| Tmark | Time marker of active node |
| dth | Depth-adjustment threshold of network |
| Cth | Coverage threshold on 2d network surface |
| IDA | Activation identifier of node |
| Cc | Network coverage rate |
| Cn | Network connectivity rate |
| Α | Ratio of node communication radius to sensing radius |