Single vs Multi-Path Protocols

• A new receiver connected to the tree using a single/unicast branch

• May be QoS-incapable

• Consider multiple branches/paths for a new receiver

• Choose one based on QoS

• Spanning joins using consecutive broadcasts

• QoSMIC uses limited local search and tree search in parallel

• Higher chance of success but high overhead

• Selection of candidate paths is not QoS-aware

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