A large variety of modulation techniques have been studied for mobile radio communication systems and further research i

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A Large Variety Of Modulation Techniques Have Been Studied For Mobile Radio Communication Systems And Further Research I 1 (36.49 KiB) Viewed 26 times

A large variety of modulation techniques have been studied for mobile radio communication systems and further research is ongoing for future development. While designing a modulation scheme the hostile fading and multipath conditions that are resistant to mobile channel impairments is a challenging task. Since the ultimate goal of a modulation technique is to transmit a message signal through a radio channel with the best possible quality while occupying the least amount of radio spectrum, new advances in digital signal processing continue to bring about new forms of modulation and demodulation. Orthogonal frequency-division multiplexing Amplitude-shift keying (ASK) 1) the modulation technique, 2) the transmitter and receiver architectures, 3) design trade-offs, 4) their performance under various types of channels especially in the AWGN channel to choose the suitable one for all these transmission functions.