We investigate the effective throughput performance of overhead signaling systems from the viewpoint of Shannon Theory 2.0. Assume that is the achievable throughput of the perfect information system and is the difference of the achievable throughput performance between the perfect information system and the limited information system. We denote the overhead signaling time as and the total available time as . Then, the effective throughput performance of the limited information system is defined as
where and . The equation above shows that if the time resource for overhead signaling goes to sufficiently large, the real transmission time of becomes smaller and the performance difference of becomes smaller. Therefore, it is obvious that there is an optimal point for to achieve the maximum of .
Pilot Overhead Edit
For non-perfect pilot signaling system, the throughput performance is given by the function of the noise density, where
where and is the measured channel information at the receiver.