A Comparison Between OFDM With TZCP Guard Time vs. Cyclic Prefix & Trailing Zeros
نویسندگان
چکیده
In this paper, the transmission of an orthogonal frequency division multiplexed (OFDM) signal over channel with time varying frequency has been considered, selective fading and additive white Gaussian noise (AWGN). Due to channel dispersion, intersymbol and intercarrier Interference will occur at the receiver. To reduce this interference, a guard time is added as a cyclic prefix (CP), or trailing zeros (TZ). This paper presented a novel combination of two previous guard time, named TZCP. Also the system performance for CP, TZ and TZCP guard time has been simulated and implemented over slow fading and HF channel and has shown better performance obtained in both channels for TZCP gaurdtime. Keywords-component; OFDM; TZCP; TZ; TZ; HF channel; fading channel
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