Quality of Service-Based Node Relocation Technique for Mobile Sensor Networks

Table 1

Protocol summary.

Reference	Main objective	Secondary goal	Approach type	State of network	Type of movement
[7]	Connectivity restoration	Minimize the distance and coverage aware	Centralized	Global	Controlled
[8]	Connectivity restoration	Minimize the maximum and total distance travelled	Centralized	Global	Controlled
[10]	Connectivity	Minimize the maximum and total distance travelled	Centralized	Global	Controlled
[12]	Connectivity	Minimize the recovery scope and total distance	Distributed	1-hop	Cascaded
[13]	Connectivity	Minimize the message cost and distance travelled	Distributed	2-hop	Cascaded
[14]	Connectivity	Minimize the total distance travelled	Distributed	1-hop	Block
[15]	Connectivity	Minimize the relays populated number and create an efficient topology	Distributed	None	Cascaded
[17]	Connectivity	Minimize the maximum and total distance travelled	Distributed	2-hop	Cascaded
[20]	Connectivity	Minimize the total distance	Distributed	2-hop	Cascaded
[21]	Connectivity	Minimize the total distance	Distributed	2-hop	Cascaded
[22]	Connectivity	Minimize the coverage loss and total distance travelled	Distributed	1-hop	Cascaded
[23]	Connectivity	Minimize the total distance travelled	Centralized	Global	Cascaded
[24]	Connectivity	Minimize the coverage loss	Distributed	1-hop	Controlled
[25]	Connectivity	Minimize the coverage loss	Distributed	1-hop	Controlled
[26]	Connectivity	Minimize the coverage loss	Distributed	1-hop	Controlled