An Improved Implementation Scheme Based on BICM for BBOC-AM

摘要：

This paper proposes an improved channel coding scheme based on bit-interleaved coded modulation (BICM) for in-band on-channel amplitude modulation (IBOC-AM). It can yield better coding gains than traditional scheme over Rayleigh fading channels. Generally, BICM embedded LDPC code for IBOC (BICM-L) has better coding performances than BICM embedded convolution^ codes for IBOC (BICM-C), which has been proved to be an advanced scheme. However, there is a zone named bund-zone existing in the region of SNRs, where the performance gains of BICM-L with high-order modulation are worse than BICM-C. To achieve an improved performance, for the blind-zone, BICM-L is replaced by BICM-C in this improved scheme. Simulation results confirm that, by using the proposed improved scheme, a better performance gains up to 0.3 dB can be achieved for the blind-zone between 4 dB SNR and 5.1 dB SNR, while an additional gains about 4 dB can be achieved in regions of high SNRs.

关键词： In-band on-channel (IBOC) bit-interleaved coded modulation (BICM) law density parity check (LDPC) codes convolutional codes

作者: LiuShuyang Yang Gang Li Jianping

作者单位: School of Information Engineering Communication University of China Beijing China

会议类型: 国际会议

会议名称: The 2nd IEEE International Conference on Advanced Computer Control(第二届先进计算机控制国际会议 ICACC 2010)

会议地点: 沈阳

会议语种:英文

页码: 389-393

在线出版日期: 2010-03-27（万方平台首次上网日期，不代表论文的发表时间）