Page 1 End-to-End Bandwidth Reservation in IEEE Mesh Networks Claudio Cicconetti, Vanessa Gardellin, Luciano Lenzini, Enzo Mingozzi IEEE International Mobile Adhoc and Sensor Systems, 2007 (MASS 2007)
Page 2 Outline Introduction EBRP messages and procedures Call admission control Performance evaluation Conclusion
Page 3 Introduction Coordinated distributed mesh mode Frame consists of two subframes Consists of two phases EBRP messages and procedures Call admission control Control subframeData subframe
Page 4 EBRP messages and procedures Three-way handshake RequesterGrantor Request message Grant message Confirm message
Page 5 EBRP messages and procedures
Page 6 EBRP messages and procedures PATH message The originator and recipient IDs The traveled nodes The TSPEC TFID RESV message Routed through the same path in the PATH message Performs the CAC procedure when receipting RESV message
Page 7 Call admission control Call Admission Control Interference Bandwidth (QoS)
Page 8 Call admission control Interference
Page 9 Call admission control Traffic flow i is admitted if Bytes need to schedule to traffic flow i
Page 10 Performance evaluation Implemented into ns2 simulator Frame duration : 4 ms Modulation and coding : QPSK ¾ Nodes : grid of 5*5 Gateway : four vertices of the grid Performance indices : Setup latency Blocking probability
Page 11 Performance evaluation Blocking probability and setup latency of 8 control slots per frame with different traffic load
Page 12 Performance evaluation Blocking probability and setup latency of traffic load = 1/s with different control slots per frame
Page 13 Conclusion EBRP is an end-to-end bandwidth reservation scheme for resource reservation Reducing the number of control slots per frame provides a higher available capacity for data transmission, but, at the same time, increases the setup latency