Gaussian Mixture Message Passing for Blind Known Interference Cancellation
Gaussian Mixture Message Passing for Blind Known Interference Cancellation
复制标题
用于盲已知干扰消除的高斯混合消息传递
DOI:
10.1109/twc.2019.2922392
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发表时间:
2019-06
影响因子:
10.4
通讯作者:
Wang Hui
中科院分区:
文献类型:
--
作者:
Wang Taotao;Shi Long;Zhang Shengli;Wang Hui
This paper proposes a Gaussian mixture message passing (GMMP) scheme to implement the blind known-interference cancellation (BKIC). Being aware of interference data as a priori information, the BKIC aims at canceling the interference without estimating the interference channel. Since the target signals are represented by continuous real-valued variables, the previous BKIC scheme is constructed as a real-valued belief propagation (RBP) for implementing message passing on the factor graph that represents the corresponding signal model. To implement the RBP-BKIC, the real-valued variables are actually quantized into vectors of discrete values. As such, the quantized RBP-BKIC has some drawbacks: 1) its performance is determined by the quantization step size and 2) it can only be applied to real signaling with 1-D PAM modulations. To overcome these drawbacks, we propose a GMMP scheme for the BKIC. First, we reveal that all messages passing over the factor graph of BKIC systems can be exactly represented by the mixtures of weighted Gaussian probability density functions. Superior to the quantized RBP-BKIC, we further show that the proposed GMMP scheme is an exact and efficient solution to the BKIC. In particular, it can approach performances of point-to-point communication systems with complex QAM modulations at the cost of affordable computational complexities. Moreover, we put forth a message passing framework that combines the GMMP-BKIC and the channel decoding into an iterative message passing scheme.
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影响因子:
6.8
作者:
Li Chunguo;Yang Hyun Jong;Sun Fan;Cioffi John M.;Yang Luxi
通讯作者:
Yang Luxi
DOI:
10.1109/isit.1997.613028
发表时间:
1997-06
期刊:
Proceedings of IEEE International Symposium on Information Theory
影响因子:
--
作者:
D. Mackay
通讯作者:
D. Mackay
影响因子:
14.9
作者:
Loeliger, HA
通讯作者:
Loeliger, HA
影响因子:
2.8
作者:
Gollakota, Shyamnath;Katabi, Dina
通讯作者:
Katabi, Dina
DOI:
10.1109/tassp.1984.1164265
发表时间:
1984-02
期刊:
IEEE Transactions on Acoustics, Speech, and Signal Processing
影响因子:
--
作者:
D. Messerschmitt
通讯作者:
D. Messerschmitt