2015 International Conference on Wireless Communications & Signal Processing (WCSP)最新文献

Blind recognition of BCH code based on Galois field fourier transform 基于伽罗瓦场傅立叶变换的BCH码盲识别

2015 International Conference on Wireless Communications & Signal Processing (WCSP) Pub Date : 2016-10-01 DOI: 10.1109/CyberC.2016.89

Xiaokai Zhang, Gang Wu, Bangning Zhang, D. Guo, K. Guo

引用次数: 12

Secrecy outage on transmit antenna selection/maximal ratio combining in MIMO cognitive radio networks MIMO认知无线网络中发射天线选择/最大比组合的保密中断

2015 International Conference on Wireless Communications & Signal Processing (WCSP) Pub Date : 2016-02-12 DOI: 10.1109/TVT.2016.2529704

Hui Zhao, Youyu Tan, Gaofeng Pan, Yunfei Chen, Nan Yang

引用次数: 53

Low-complexity soft-output detectors for LDPC coded spatial modulation systems LDPC编码空间调制系统的低复杂度软输出检测器

2015 International Conference on Wireless Communications & Signal Processing (WCSP) Pub Date : 2015-12-03 DOI: 10.1109/WCSP.2015.7341061

Cong Li, Yunpeng Cheng, Yuming Zhang, Yu-zhen Huang

{"title":"Low-complexity soft-output detectors for LDPC coded spatial modulation systems","authors":"Cong Li, Yunpeng Cheng, Yuming Zhang, Yu-zhen Huang","doi":"10.1109/WCSP.2015.7341061","DOIUrl":"https://doi.org/10.1109/WCSP.2015.7341061","url":null,"abstract":"In this paper, we present an efficient transmission scheme for multiple-input multiple-output (MIMO) systems, i.e., low density parity check (LDPC) coded spatial modulation (SM) systems. To exploit the powerful error correction of LDPC code, the key challenge of LDPC coded SM systems is on designing a reliable but low complexity soft-output detector. To tackle this problem, we propose two soft-output detection algorithms based on hard-decision detectors by exploiting the features of M-PSK and M-QAM constellations, namely, PSK-based soft-output detector (PBSOD) and QAM-based soft-output detector (QBSOD). The analytical results show that the number of the searched signal candidates is reduced from NtM to Nt, where Nt is the number of transmit antennas, M is the modulation order. Furthermore, we propose a more general simpler detector, that is, using the absolute value instead of the Frobenius norm to calculate the soft bit metrics. The findings of this paper suggest that the proposed three soft-output detectors for LDPC coded SM systems exhibit lower complexity compared to optimal maximum a posteriori (MAP) log likelihood ratio (LLR) detector and Max-Log detector while imposing only marginal performance degradation. In addition, a comprehensive performance and computational complexity comparison between the proposed detectors and the state-of-the-art detectors is provided to validate the proposed low-complexity detectors. The achieved performance and complexity of the proposed detectors make them suitable candidates for practical coded SM-MIMO systems.","PeriodicalId":164776,"journal":{"name":"2015 International Conference on Wireless Communications & Signal Processing (WCSP)","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115677946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13

A new BIA scheme based on reconfigurable antennas 一种基于可重构天线的BIA新方案

2015 International Conference on Wireless Communications & Signal Processing (WCSP) Pub Date : 2015-12-03 DOI: 10.1109/WCSP.2015.7341326

An Huang, Min Peng, Yubo Li, Qing F. Zhou

引用次数: 0

System capacity analysis of hybrid cellular networks with cognitive radio relay 具有认知无线电中继的混合蜂窝网络系统容量分析

2015 International Conference on Wireless Communications & Signal Processing (WCSP) Pub Date : 2015-12-03 DOI: 10.1109/WCSP.2015.7341296

Chen Liu, Qi Yang, Haowen Wang, Xuemin Hong, Jianghong Shi, Biyu Tang

引用次数: 2

Iterative carrier recovery in an LDPC coded QPSK system at low SNRs 低信噪比LDPC编码QPSK系统的迭代载波恢复

2015 International Conference on Wireless Communications & Signal Processing (WCSP) Pub Date : 2015-12-03 DOI: 10.1109/WCSP.2015.7340999

J. Bao, Xiqi Gao, Chao Liu, Bin Jiang

{"title":"Iterative carrier recovery in an LDPC coded QPSK system at low SNRs","authors":"J. Bao, Xiqi Gao, Chao Liu, Bin Jiang","doi":"10.1109/WCSP.2015.7340999","DOIUrl":"https://doi.org/10.1109/WCSP.2015.7340999","url":null,"abstract":"This paper presents an iterative carrier recovery (ICR) via soft decision metrics (SDMs) of low-density parity-check (LDPC) decoding in an LDPC coded quadrature phase shift keying (QPSK) system. It is crucial for wireless communication systems to work effectively, especially at low signal-to-noise ratios (SNRs). By maximizing the sum of the square of the SDMs of LDPC decoding with gradient oriented optimization of the objective function, it adaptively updates the carrier phase and frequency parameter accurately. The structure of the proposed scheme is also given, along with the phase ambiguity solution. Meanwhile, it is combined with the Costas loop tracking and the LDPC decoding feedback to eliminate residual carrier offsets. Simulation results indicate that the proposed ICR algorithm achieves good performance in an LDPC coded QPSK system under rather large carrier phase offsets, which is just within 0.1 dB of the ideal code performance at the cost of some moderate complexity. By the proposed scheme, a rate-1/2 LDPC coded QPSK system can even work at low bit SNR (Eb/N0) about 1-2 dB, which is useful in energy-limited wireless communications.","PeriodicalId":164776,"journal":{"name":"2015 International Conference on Wireless Communications & Signal Processing (WCSP)","volume":"s1-7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127126744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Resource efficient beamforming design for heterogeneous multiuser systems 异构多用户系统的资源高效波束形成设计

2015 International Conference on Wireless Communications & Signal Processing (WCSP) Pub Date : 2015-12-03 DOI: 10.1109/WCSP.2015.7341098

Ying Lu, Lei Wei, Shiwen He, Yongming Huang, Luxi Yang

引用次数: 0

A novel transceiver architecture in the two-way relay channel with analog and digital beamforming 采用模拟和数字波束形成的双向中继信道中的新型收发器结构

2015 International Conference on Wireless Communications & Signal Processing (WCSP) Pub Date : 2015-12-03 DOI: 10.1109/WCSP.2015.7341245

Shiqi Gong, C. Xing, Zesong Fei, Jingming Kuang

{"title":"A novel transceiver architecture in the two-way relay channel with analog and digital beamforming","authors":"Shiqi Gong, C. Xing, Zesong Fei, Jingming Kuang","doi":"10.1109/WCSP.2015.7341245","DOIUrl":"https://doi.org/10.1109/WCSP.2015.7341245","url":null,"abstract":"In this paper, we propose a novel transceiver architecture at relay for multiple input, multiple output two-way relay channel (TWRC). This transceiver architecture consists of the analog beamforming in RF domain and the MMSE based digital processing at baseband, which is simplified as RF-MDP-MIMO architecture. Under the RF-MDP-MIMO architecture, the objective of this paper is to find the optimal relay transmit and receive beamformings that can achieve the boundary of the optimal capacity region with limited relay power. Specifically, by formulating the original optimization problem into two semidefinite programing (SDP) problems with rank-one constraints which can be effectively solved by the penalty function method, we can optimize relay transmit and receive beamformings alternatively. Then, the maximum achievable sum rate of TWRC can be obtained with the bisection method. Further, the achievable capacity region is realized. Numerical experiments are conducted to show that our proposed RF-MDP-MIMO architecture outperforms the RF-MIMO architecture in terms of the optimal achievable capacity region.","PeriodicalId":164776,"journal":{"name":"2015 International Conference on Wireless Communications & Signal Processing (WCSP)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125112423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Analysis of secrecy rate against eavesdroppers in MIMO modulation systems MIMO调制系统防窃听保密率分析

2015 International Conference on Wireless Communications & Signal Processing (WCSP) Pub Date : 2015-12-03 DOI: 10.1109/WCSP.2015.7341200

Yaman Wei, Li Wang, T. Svensson

引用次数: 7

3D imaging using narrowband MIMO radar and ISAR technique 利用窄带MIMO雷达和ISAR技术进行三维成像

2015 International Conference on Wireless Communications & Signal Processing (WCSP) Pub Date : 2015-12-03 DOI: 10.1109/WCSP.2015.7340990

Xiaowei Hu, N. Tong, Yongshun Zhang, Yuchen Wang

引用次数: 9