Performance Evaluation
- no. transmissions to get pkt j to all rcvrs
- no. transmsissions of pkt j needed for rcvr i
well understood for spatially and temporally independent losses
spatial correlation: computationally expensive for general topologies see Towsley85, Tripathi94, Nonnenmacher97
temporal correlation: has not been touched on (see Nonnenmacher etal 97 for one treatment)