Clearly, the focus of the paper under discussion lies in developing practical sequential change-point methodologies in a multi-channel "information system", but the motivation is exclusively guided by modern applications in computer engineering.
In real life, however, we also face other kinds of multi-channel "information systems".
The end-to-end channel capacity of the outdated channel state information system is also analyzed.
The secrecy performance with only SCSI of the system will be less, as compared to the one with ICSI of the system, which is also intuitive as improvement is achieved by utilizing the knowledge of instantaneous channel information of the system.
Assuming that all channel information in the system is known to the source node by the virtue of some feedback channels, the source node is able to exploit this information to find the optimum relay for cooperative communications by using the following rule: min P psk R 1, P psk R 2 (33).
Therefore, after the interference limits and the pilot signals from the PBS were collected, the channel information between two systems can be known at the CBS.
Another important difference is that channel information in CoMP systems is usually larger, since there can be up to B ⋅ N t transmit antennas instead of N t.
It is worthwhile to investigate whether redundant EEG channel information in the BMI system made the recognition task too easy to benefit the motor recovery.
In [14], the authors investigated the impact of imperfect channel information on OFDMA-based systems under fairness and minimum rate constraints.
Without the knowledge of timing offset and channel information at the receiver, the system will have a poor performance during the entire data transmission.
It has been shown in [5, 6] that the sum capacity of the Gaussian broadcast channel scales with the number of users as, where is the total number of users in the system whose channel information is available at the BS.
