Senari, Ahmad Sazali and Sha'ameri, Ahmad Zuri (2002) Performance evaluation of multi carrier modulation techniques for HF frequency selective fading channel. 4& National Conference on Telecommunication Technology Proceedings, Shah Alam, Malaysia . pp. 151-154.
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-camer 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 Shiil-Keying (ASK) or Phase Shiil-Keying (PSK) and them ulti-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.
|Subjects:||T Technology > TK Electrical engineering. Electronics Nuclear engineering|
|Deposited By:||Dr Zaharuddin Mohamed|
|Deposited On:||16 Mar 2007 05:54|
|Last Modified:||11 May 2011 09:04|
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