TY - JOUR
T1 - On the Performance of Splitting Receiver with Joint Coherent and Non-Coherent Processing
AU - Wang, Yan Yan
AU - Liu, Wanchun
AU - Zhou, Xiangyun
AU - Liu, Guanghui
PY - 2020
Y1 - 2020
N2 - In this article, we revisit a recently proposed receiver
design, named the splitting receiver, which jointly uses coherent
and non-coherent processing for signal detection. By considering
an improved signal model for the splitting receiver as compared
to the original study in the literature, we conduct a performance
analysis on the achievable data rate under Gaussian signaling and
obtain a fundamentally different result on the performance gain
of the splitting receiver over traditional receiver designs that use
either coherent or non-coherent processing alone. Specifically, the
original study ignored the antenna noise and concluded on a 50%
gain in achievable data rate in the high signal-to-noise ratio (SNR)
regime. In contrast, we include the antenna noise in the signal model
and show that the splitting receiver improves the achievable data
rate by a constant gap in the high SNR regime. This represents
an important correction of the theoretical understanding on the
performance of the splitting receiver. In addition, we examine the
maximum-likelihood detection and derive a low-complexity detection
rule for the splitting receiver for practical modulation schemes.
Our numerical results give further insights into the conditions
under which the splitting receiver achieves significant gains in
terms of either achievable data rate or detection error probability.
AB - In this article, we revisit a recently proposed receiver
design, named the splitting receiver, which jointly uses coherent
and non-coherent processing for signal detection. By considering
an improved signal model for the splitting receiver as compared
to the original study in the literature, we conduct a performance
analysis on the achievable data rate under Gaussian signaling and
obtain a fundamentally different result on the performance gain
of the splitting receiver over traditional receiver designs that use
either coherent or non-coherent processing alone. Specifically, the
original study ignored the antenna noise and concluded on a 50%
gain in achievable data rate in the high signal-to-noise ratio (SNR)
regime. In contrast, we include the antenna noise in the signal model
and show that the splitting receiver improves the achievable data
rate by a constant gap in the high SNR regime. This represents
an important correction of the theoretical understanding on the
performance of the splitting receiver. In addition, we examine the
maximum-likelihood detection and derive a low-complexity detection
rule for the splitting receiver for practical modulation schemes.
Our numerical results give further insights into the conditions
under which the splitting receiver achieves significant gains in
terms of either achievable data rate or detection error probability.
U2 - 10.1109/TSP.2020.2968266
DO - 10.1109/TSP.2020.2968266
M3 - Article
SN - 1053-587X
VL - 68
SP - 917
EP - 930
JO - IEEE Transactions on Signal Processing
JF - IEEE Transactions on Signal Processing
ER -