| Input: CN_ADV, CNH_ADV, SN_ID, RSSI (SN_ID) |
| Output: Formation of cluster |
| Var: RSSI (SN_ID), CNselecteda, CNHselectedCN, CNMbr, CNHMbr |
| Begin |
| RSSI(SN_ID) =; |
| CNselecteda = CNHselected=; |
| CNMbr=CNHMbr= |
| //Node ‘a’ receives CN_ADV message from node b: where aCN and b |
| CN_ADV:< CN_ADV, SN_IDb>; |
| RSSI(a) RSSI(a) |
| //Node ‘a' selects the node only with maximum RSS as in its CN after//obtaining all CN_ADV. |
| CNselecteda |
| Send info (CN_JOIN, SN_IDa, SN_IDcn); |
| //Send a request to enter to the CN. |
| //Node ‘q’ sends the following information to node ‘p’: |
| // ‘p’ is the CN of one cluster and ‘q’ is the CN of another cluster |
| CNH_ADV:< CNH_ADV, SN_IDq>; |
| RSSI(p) RSSI(p) |
| //Node ‘p' selects the node with the maximum RSS as in its CNH after//obtaining all CNH_ADV. |
| CNHSelectedp |
| Send info (CNH_JOIN, SN_IDp, SN_IDcnh); |
| //Join request will be send to the CNH |
| //The below mentioned packet is received by node a from node b: in which// aCN and b |
| CN_JOIN: <CN_JOIN, idb, SN_IDcn> |
| If (SN_IDa == SN_IDcn) then |
| CNMbr(a) CNMbr(a) |
| Node p transfers the CNHMbr(p) to BS after obtaining all CNH_JOIN. |
| The timeline should be broadcast to CN |
| Else |
| Packet drop; |
| End if |
| The packet is received by node p from node q, whereas p is the CN of one cluster and q is the CN of another cluster. |
| CNH_JOIN: <CNH_JOIN, SN_IDq, SN_IDcnh> |
| If (SN_IDp == SN_IDcnh) then |
| Begin |
| CNHMbr(p) CNHMbr(p) ; |
| Node p transfers the CNHMbr(p) to BS after obtaining the CNH_JOIN. The CN should be informed of the time slot schedule. |
| End |
| Else |
| Packet drop; |
| End if |
| End |
