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http://dx.doi.org/10.6109/jkiice.2018.22.10.1379

Symbol Error Rate Analysis for Fixed Multi-User Superposition Transmission in Rayleigh Fading Channels  

Lee, In-Ho (Department of Electrical, Electronic and Control Engineering, Hankyong National University)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.22, no.10, 2018 , pp. 1379-1385 More about this Journal
Abstract
In the conventional multi-user superposition transmission, the power allocation coefficients of data symbols and the received signal processing of users are determined by the condition of instantaneous channel powers. However, the use of instantaneous channel powers can increase the system complexity. Hence, we consider fixed multi-user superposition transmission using average channel powers. The fixed multi-user superposition transmission can reduce the system complexity because it uses the condition of average channel powers that slowly change over time in order to decide the power allocation coefficients and the received signal processing. In this paper, we analyze the average symbol error rate for the fixed multi-user superposition transmission. In particular, an expression for the average symbol error rate of M-ary Quadrature Amplitude Modulation is derived assuming Rayleigh fading channels. In addition, through the numerical results, we show that the conventional and fixed multi-user superposition transmissions achieve the similar average symbol error rate performances at the user in the severe channel condition.
Keywords
Multi-user superposition transmission; Power allocation coefficient; Rayleigh fading channel; Symbol error rate;
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Times Cited By KSCI : 1  (Citation Analysis)
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