Soft-Quantized Demodulation for BPSK over Discrete-Time Memoryless Fading Channel

摘要：

The demapping method that simply multiplies the received symbols with Channel State Information (CSI) coeffi-cients is proved optimal in this paper for any BPSK modulated Discrete-time Memoryless Fading Channel (DMFC) from the viewpoint of channel capacity, when CSI is available at the receiver. A generic method to calculate the channel capacity of BPSK modulated DMFC subjected to uniform soft quantization is proposed, which offers a powerful criterion for optimal quantizer design. Numeric results of the Rayleigh fading case are presented, showing that 6-bit uniform quantization offers effective demodulation compared with unquantized demodulation, losing less than 0.1 dB for both with and without CSI cases.

作者: Qiuliang Xie Kewu Peng Jian Song Changyong Pan Zhixing Yang

作者单位: Tsinghua National Laboratory for Information Science and Technology (TNList)Department of Electronic Tsinghua National Laboratory for Information Science and Technology (TNList Department of Electronic

会议类型: 国际会议

会议名称: The 11th IEEE International Conference on Communications Systems(第11届电子和电气工程师协会国际通信系统会议)(IEEE ICCS 2008)

会议地点: 广州

会议语种:英文

在线出版日期: 2008-11-19（万方平台首次上网日期，不代表论文的发表时间）