Title :
Performance evaluation of multi-carrier modulation techniques for HF frequency selective fading channel
Author :
Bin Senawi, Ahmad Sazali ; Bin Sha´ameri, Ahmad Zuri
Author_Institution :
Fac. of Electr. Eng., Universiti Teknologi Malaysia, Skudai, Malaysia
Abstract :
Multipath fading in HF channels causes time-delay spread that limits the maximum symbol rate, and frequency selective fading that attenuates some frequency bands compared to others. Multi-carrier modulation techniques, multi-carrier ASK (MCASK) and multi-carrier PSK (MCPSK), can be used to ensure reliability of transmission and high data transmission rate. The bit-error rate (BER) performance is compared between single frequency modulation such as amplitude shift-keying (ASK) or phase shift-keying (PSK) and the multi-carrier modulation in the presence of additive white Gaussian noise and a combination of multipath fading and additive white Gaussian noise. On the average, the BER performance is better for the multi-carrier modulation compared to the single carrier modulation under multipath fading conditions.
Keywords :
AWGN channels; HF radio propagation; amplitude shift keying; delays; error statistics; fading channels; multipath channels; phase shift keying; AWGN; BER; HF channels; HF frequency selective fading channel; additive white Gaussian noise; amplitude shift-keying; bit-error rate; frequency selective channel; multicarrier ASK; multicarrier PSK; multicarrier modulation techniques; multipath fading; phase shift-keying; single frequency modulation; time-delay spread; Additive white noise; Amplitude modulation; Amplitude shift keying; Bit error rate; Data communication; Fading; Frequency modulation; Hafnium; Phase modulation; Phase shift keying;
Conference_Titel :
Telecommunication Technology, 2003. NCTT 2003 Proceedings. 4th National Conference on
Print_ISBN :
0-7803-7773-7
DOI :
10.1109/NCTT.2003.1188324
