标题：Joint detection and decoding for polar-coded OFDM-IDMA systems
作者：Deng, Xiangyun ;Sha, Jin ;Zhou, Xiaotian ;You, Xiaohu ;Zhang, Chuan
作者机构：[Deng, Xiangyun ] Lab of Efficient Architectures for Digital-communication and Signal-processing (LEADS), China;[Deng, Xiangyun ;Sha, Jin ] School of 更多
会议名称：12th IEEE International Conference on Advanced Semiconductor Integrated Circuits, ASICON 2017
会议日期：25 October 2017 through 28 October 2017
来源：Proceedings of International Conference on ASIC
关键词：BP; Interleave-division multiple access (IDMA); Joint detection and decoding (JDD); Polar codes; Sign-aided
摘要：Being one non-orthogonal multiple access (NOMA) scheme, interleave-division multiple access (IDMA) can increase the capacity of wireless communication systems, and therefore has drawn many attentions. In this paper, polar codes, which have been adopted by 3GPP eMBB control channel, are applied to OFDM-IDMA systems for further performance improvement. The corresponding joint detection and decoding (JDD) scheme is proposed as well. To further reduce the decoding complexity, a sign aided JDD (SA-JDD) scheme is introduced. According to numerical results, the proposed polar-coded OFDM-IDMA scheme outperforms the uncoded one. The proposed JDD scheme has nearly 1.5 dB gain over the separated detection and decoding (SDD) scheme when BER = 4 × 10-3. SA-JDD scheme requires only half complexity of JDD with no performance degradation when SNR = 8 dB. Finally, the corresponding hardware architecture is also proposed. © 2017 IEEE.