Design and investigation of scalable multicast recursive protocols for wired and wireless ad hoc networks

4. SCALABLE RECURSIVE MULTICAST PROTOCOL..............55

4.1 Introduction...................................................................................................... 55

4.2 Overview of proposed protocol........................................................................ 57

4.2.1 Definitions............................................................................................ 58

4.3 Membership Management................................................................................ 59

4.3.1 Dynamic Branching node-based Tree (DBT) ...................................... 59

4.3.2 Messages and tables structure at SReM ............................................... 60

4.4 Joining / leaving and BNR Selection Procedure.............................................. 65

4.4.1 Service Discovery ................................................................................ 65

4.4.2 Joining process in SReM...................................................................... 66

4.4.3 Leaving process in SReM .................................................................... 69

4.4.4 Tree maintenance ................................................................................. 72

4.5 Delivery of Packets .......................................................................................... 74

4.5.1 SReM header and packet delivery........................................................ 74

4.5.2 Multicasting in confirmed mode .......................................................... 75

4.5.3 Multicasting in unconfirmed mode ...................................................... 76

4.6 Performance Evaluation................................................................................... 78

4.6.1 Comparison and Cost analysis ............................................................. 79

4.6.2 Simulation analysis .............................................................................. 90

4.7 Summary .......................................................................................................... 96

5. SCALABLE RECURSIVE MULTICAST PROTOCOLS IN MOBILE

Enviroments..................................................................98

5.1 Introduction...................................................................................................... 98

5.2 Inherited features from SReM........................................................................ 100

vii