Data Transmission Over Linear Time-Varying Channels

Many traditional data transmission schemes over wireless communication channels heavily rely on the assumption that channel state information is available. However, for time-varying channels it is not possible to reliably decide the validity of the previously performed channel estimate. Therefore, message transmission methods taking the time-varying nature of the communication channel into account must perform both data transmission and channel estimation simultaneously. This paper proposes two data transmission schemes over linear time-varying wireless communication channels with a single transmit antenna. In the first case we consider a single antenna receiver and in the second scenario the receiver is equipped with an antenna array. Both schemes rely on sparsity assumptions.

Automated summary

Many traditional data transmission schemes rely on the availability of channel state information, but for time-varying channels it is difficult to determine the accuracy of previous channel estimates. This paper proposes two data transmission schemes that perform both data transmission and channel estimation simultaneously, considering both single antenna and antenna array receivers, and relying on sparsity assumptions.