Error modeling and throughput analysis in integrated communication and broadcast networks

In this paper, based on the testbed of our proposed integrated communication and broadcast networks (ICBN), we have done the field trial and collected traces in the ICBN system. With these traces, five models have been constructed to model the error on the Transport Stream (TS) layer of the system. These five models include uniform error model, GE model, higher order Markov model, Markov-based Trace Analysis (MTA) model and improved two-state model. Then we evaluate the performance of these models using several metrics including TS packet error rate (PER), error and error-free length distributions and conclude that the improved two-state model is most suitable with acceptable complexity. Based on this conclusion, the throughput related to the SubNetwork Data Unit (SNDU) size of our system is given. It can be seen that with the return channel, ICBN greatly improves the throughput compared with broadcast networks.