Cyclic Prefix Based Channel Estimation of Single Carrier - Frequency Domain Equalization

: For the mobile communication, single carrier cyclic prefixed (SC-CP) with frequency domain equalizer (FDE) is favourable and robust channel estimation. Conventional SC-CP wireless system uses training sequences that put in every packet to get the channel information. Channel State Information (CSI) is the crucial parameter that should be available at the receiver. Correct channel estimation is very important to the implementation of any communication system. In wireless communication system, data is often transmitted through unknown channel. This state of information is generally obtained at the receiver by sending training sequence from transmitter to receiver repeatedly and a training algorithm is performed by the receiver on the observed channel output and the known input to the channel. Since, training sequence is sent with the data frame, these solution results in loss of net throughput. A different way of obtaining CSI has been explored in this paper, making use of the transmitted information i.e. cyclic prefix itself and without adding any training symbols. This obviates the need for training sequences and results in overall increase in throughput