Microbenchmarks

We present microbenchmarks measuring the overhead of SSCH in several different scenarios. In Section 4.1.1, we measure the overhead during the successful initiation of a CBR stream. In Section 4.1.2, we measure the overhead on an existing session of failing to initiate a parallel CBR stream. In Section 4.1.3, we measure the overhead of supporting two streams simultaneously. In Section 4.1.4, we measure the overhead of continuing to attempt transmissions to a mobile node that has moved out of range. These scenarios cover many of the different dynamic events that a MAC must appropriately handle: a flow starting while a node is present, a flow starting while a node is absent, simultaneous flows where both nodes are present, simultaneous flows where one node moves out of range, etc. Finally, the last scenario (Section 4.1.5) measures the overhead of SSCH with respect to a different kind of event, clock skew.