Research Article
Reactive GTS Allocation Protocol for Sporadic Events Using the IEEE 802.15.4
Table 3
Sporadic event propagation traces from R5 to R3 when event occurs during sleep period.
| Number
| Time
| Src./dst.
| Cluster 3
| Cluster 1
| Cluster 2 | R6 | R5 |
| 1 | 3.640320 | R2/R6, R5 | | | Beacon Tx | 2 | 3.640896 | | | | Beacon Rx[TRR] | Beacon Rx[TT] | 3 | 3.641088 | | | | CAP start | | 4 | 3.661440 | | | | CFP start | | 5 | 3.686400 | R1 | | Beacon Tx | | | 6 | 3.686976 | | | Beacon Rx[TR] | | | 7 | 3.668128 | R2/R6 | | | | | 8 | 3.700000 | | Periodic event | | Sleep start | | 9 | 3.717120 | R3 | Beacon Tx | Sleep start | — | | 10 | 3.717696 | R3/N11 | Beacon Rx[TT] | | — | | 11 | 3.717888 | | CAP start | | — | | 12 | 3.730560 | | CFP start | | — | | 13 | 3.73056 | N11/R3 | Data Rx | | — | | 14 | 3.886080 | | Sleep start | | — | | 15 | 3.886080 | R2 | — | | Beacon Tx | 16 | 3.886656 | R2/R6, R5 | — | | Beacon Rx[TRR] | Beacon Rx[TT] | 17 | 3.886848 | | — | | CAP start | CAP start | 18 | 3.890000 | R5 | — | | | Sporadic event | 19 | 3.892832 | R5/R2 | — | | | GTS Req Tx/Rx | 20 | 3.907200 | | — | | CFP start | CFP start | 21 | 3.932160 | R1 | — | Beacon Tx | Sleep start | Sleep start | 22 | 3.932736 | | — | Beacon Rx[TR] | — | — | 23 | 3.932928 | R1/— | | CAP Start | | | 24 | 3.936672 | R2/R1 | | GTS Req Tx/Rx | | | 25 | 3.951360 | R1/— | — | CFP start | | | 26 | 3.956128 | R3/R1 | — | Data Rx | — | — | 27 | 4.958048 | R1/R2 | | Data Rx | — | — | 28 | 3.962880 | R3 | Beacon Tx | Sleep start | — | — | 29 | 3.963456 | R3/N11 | Beacon Rx[TT] | | — | — | 30 | 4.131840 | R2 | | | Beacon Tx | 31 | 4.132608 | R2/R6, R5 | | | Beacon Rx[TRR] | | 32 | 4.132800 | | | | CAP start | CAP start | 33 | 4.152160 | | | | CFP start | CFP start | 34 | 4.152160 | R5/R2 | | | | Data Rx | 35 | 4.159648 | R2/R6 | | | Data Rx (delivered) | | 36 | 4.177920 | R1 | | Beacon Tx | Sleep start | Sleep start | 37 | 4.179200 | | | | — | — | 38 | 4.194400 | R2/R1 | | Data Rx | — | — | 39 | 4.204000 | R1/R3 | | Data Rx (delivered) | — | — | 40 | 4.208640 | R3 | Beacon Tx | Sleep start | — | — | 41 | 4.209216 | R3/N11 | Beacon Rx[TT] | | — | — | 42 | 4.377600 | R2 | | | Beacon Tx | 43 | 4.378368 | R2/R6, R5 | | | Beacon Rx[TRR] | Beacon Rx[TT] | 44 | 4.378560 | | | | CAP start | CAP start | 45 | 4.398720 | | | | CFP start | CFP start | 46 | 4.423689 | | | | Sleep start | Sleep start |
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