Low-Complexity Signal Detection for the Splitting Receiver Scheme
This letter proposes a low-complexity signal detection method for the splitting receiver scheme, which achieves an excellent symbol error rate (SER) performance. Based on the three-dimensional (3D) received signal of the splitting receiver, we derive an equivalent two-dimensional (2D) signal model and develop a low-complexity signal detection method for the practical modulation scheme. The computational complexity of the proposed signal detector is reduced by at least 11.1 times as compared to the 3D signal detection scheme shown in [1]. Simulation results demonstrate that the approximation SER achieved by the low-complexity signal detection is very close to that of the accurate SER at a certain power splitting ratio.
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