This paper considers a receive diversity wireless communication system in which the transmitter uses a one-sided multi-level amplitude shift keying (ASK) modulation scheme to transmit data symbols over Rician fading channels. A channel magnitude-based receiver structure having partial knowledge of the instantaneous channel gains is employed to detect the received data symbols. The system’s error performance is analyzed by deriving a series-form expression for the symbol error probability (SEP). Further, an optimization framework is proposed to minimize the SEP under the average system energy constraint for obtaining the optimal ASK constellation. Numerical results are presented to corroborate the analytical framework where the superior performance of the optimal ASK constellation over the traditional equally-spaced ASK scheme is studied.
Optimal Multi-Level Amplitude-Shift Keying for Partially-coherent SIMO Wireless Communication System in Rician Fading Environment
2023-10-10
1512609 byte
Conference paper
Electronic Resource
English
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