Abstract
This paper proposes a simple inter-symbol interference (ISI) and inter-block interference (IBI) elimination scheme for a single carrier block transmission with cyclic prefix (SC-CP) system with an insufficient guard-interval (GI). In the SC-CP system, only limited number of symbols in a transmitted block cause the interferences, while all the information data contribute to the interferences in the orthogonal frequency division multiplexing (OFDM) system. Therefore, in the SC-CP system, the interferences can be exterminated by only setting transmitted signals to be 0 at certain time slots in a transmitted signal block without changing any parameters or configuration of the system, such as the length of GI. The proposed scheme also can be considered as a simple loading scheme in temporal domain, which tries not to use time slots contaminated by the ISI and the IBI. Moreover, this paper also proposes a pilot signal configuration for the SC-CP system, which enable us to estimate channel impulse response in the discrete frequency domain even when the channel order is longer than the GI length.
