2017 IEEE International Workshop on Signal Processing Systems (SiPS)最新文献_第3页

Dry fingerprint detection for multiple image resolutions using ridge features 干指纹检测多图像分辨率使用脊特征

2017 IEEE International Workshop on Signal Processing Systems (SiPS) Pub Date : 2017-10-01 DOI: 10.1109/SiPS.2017.8109985

Cheng-Jung Wu, C. Chiu

引用次数: 4

Reliable compressive sensing (CS)-based multi-user detection with power-based Zadoff-Chu sequence design 基于功率的Zadoff-Chu序列设计的可靠压缩感知多用户检测

2017 IEEE International Workshop on Signal Processing Systems (SiPS) Pub Date : 2017-10-01 DOI: 10.1109/SiPS.2017.8110015

Chieh-Fang Teng, Ching-Chun Liao, Hung-Yi Cheng, A. Wu

{"title":"Reliable compressive sensing (CS)-based multi-user detection with power-based Zadoff-Chu sequence design","authors":"Chieh-Fang Teng, Ching-Chun Liao, Hung-Yi Cheng, A. Wu","doi":"10.1109/SiPS.2017.8110015","DOIUrl":"https://doi.org/10.1109/SiPS.2017.8110015","url":null,"abstract":"Internet-of-Things (IoT) applications grew rapidly in recent years. Deployment of massive machine-type communication (mMTC) with scalability and reliability becomes a challenging issue. The feature of activity sparsity in mMTC devices makes room for us to efficiently handle detection by compressive sensing (CS)-based multi-user detection (CS-MUD). However, the limited resource, such as the design of spreading sequences for massive devices, makes CS-MUD in mMTC congested and collided. Thus, non-orthogonal multiple access (NOMA) attracts attention in mMTC. Despite NOMA can accommodate more devices, the non-orthogonality makes the performance degradation. In this paper, we take advantage of NOMA to generate more set of sequences by Zadoff-Chu (ZC) sequence which the bit-error-rate (BER) is reduced by two orders. Meanwhile, by considering the channel characteristic and received power of devices, these devices are grouped to make a more reliable mMTC system which eliminates the effect of non-orthogonality and improves the BER by 1.7 times with 128 devices. Thus, the proposed ZC sequence design with power-based grouping scheme can greatly improve the device scalability and reliability of the detection process for uplink multi-user problems that provides a potential solution in mMTC scenarios.","PeriodicalId":251688,"journal":{"name":"2017 IEEE International Workshop on Signal Processing Systems (SiPS)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116262966","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: 3

Error analysis methods for the fixed-point implementation of linear systems 线性系统定点实现的误差分析方法

2017 IEEE International Workshop on Signal Processing Systems (SiPS) Pub Date : 2017-10-01 DOI: 10.1109/SiPS.2017.8109991

Thibault Hilaire, Anastasia Volkova

引用次数: 2

A reduction of circuit size of digital direct-driven speaker architecture using segmented pulse shaping technique 利用分段脉冲整形技术减小数字直接驱动扬声器结构的电路尺寸

2017 IEEE International Workshop on Signal Processing Systems (SiPS) Pub Date : 2017-10-01 DOI: 10.1109/SiPS.2017.8109971

Shingo Noami, Satoshi Saikatsu, A. Yasuda

{"title":"A reduction of circuit size of digital direct-driven speaker architecture using segmented pulse shaping technique","authors":"Shingo Noami, Satoshi Saikatsu, A. Yasuda","doi":"10.1109/SiPS.2017.8109971","DOIUrl":"https://doi.org/10.1109/SiPS.2017.8109971","url":null,"abstract":"We propose a novel digital direct-driven speaker architecture using a segmented pulse shaping technique to reduce circuit size. The digital direct-driven speaker consists of a multi-bit delta-sigma modulator and a noise-shaping dynamic element matching circuit. Because the multi-bit outputs drive each of the driver circuits directly, the system can be driven at low voltage with high efficiency. However, it is necessary for the number of loudspeakers or voice coils and driver circuits to be same as the number of quantization levels. Therefore, increasing the number of quantization levels is not a straightforward process. The segmented pulse shaping technique has been proposed to increase the number of quantization levels without increasing the number of output units, thereby improving the signal-to-noise ratio and reducing out-of-band noise. However, the internal signal processing circuit size is increased. Our proposed method reduces the size of the system using a noise-shaping dynamic element matching circuit. Comparing the proposed method with the conventional method for a 33-level modulator and eight speakers, and maintaining the signal-to-noise ratio of the conventional method, the number of look-up table is reduced by 27.2% and the circuit size is reduced by 22.7%.","PeriodicalId":251688,"journal":{"name":"2017 IEEE International Workshop on Signal Processing Systems (SiPS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129322858","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: 0

On modifying the temporal modeling of HSMMs for pediatric heart sound segmentation 儿童心音分割中HSMMs时间模型的改进

2017 IEEE International Workshop on Signal Processing Systems (SiPS) Pub Date : 2017-10-01 DOI: 10.1109/SiPS.2017.8110004

J. Oliveira, Theofrastos Mantadelis, F. Renna, P. Gomes, M. Coimbra

{"title":"On modifying the temporal modeling of HSMMs for pediatric heart sound segmentation","authors":"J. Oliveira, Theofrastos Mantadelis, F. Renna, P. Gomes, M. Coimbra","doi":"10.1109/SiPS.2017.8110004","DOIUrl":"https://doi.org/10.1109/SiPS.2017.8110004","url":null,"abstract":"Heart sounds are difficult to interpret because a) they are composed by several different sounds, all contained in very tight time windows; b) they vary from physiognomy even if the show similar characteristics; c) human ears are not naturally trained to recognize heart sounds. Computer assisted decision systems may help but they require robust signal processing algorithms. In this paper, we use a real life dataset in order to compare the performance of a hidden Markov model and several hidden semi Markov models that used the Poisson, Gaussian, Gamma distributions, as well as a non-parametric probability mass function to model the sojourn time. Using a subject dependent approach, a model that uses the Poisson distribution as an approximation for the sojourn time is shown to outperform all other models. This model was able to recreate the “true” state sequence with a positive predictability per state of 96%. Finally, we used a conditional distribution in order to compute the confidence of our classifications. By using the proposed confidence metric, we were able to identify wrong classifications and boost our system (in average) from an ≈ 83% up to ≈90% of positive predictability per sample.","PeriodicalId":251688,"journal":{"name":"2017 IEEE International Workshop on Signal Processing Systems (SiPS)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127905094","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: 5

Advanced wireless digital baseband signal processing beyond 100 Gbit/s 先进的无线数字基带信号处理超过100 Gbit/s

2017 IEEE International Workshop on Signal Processing Systems (SiPS) Pub Date : 2017-10-01 DOI: 10.1109/SiPS.2017.8109974

Stefan Weithoffer, M. Herrmann, Claus Kestel, N. Wehn

{"title":"Advanced wireless digital baseband signal processing beyond 100 Gbit/s","authors":"Stefan Weithoffer, M. Herrmann, Claus Kestel, N. Wehn","doi":"10.1109/SiPS.2017.8109974","DOIUrl":"https://doi.org/10.1109/SiPS.2017.8109974","url":null,"abstract":"The continuing trend towards higher data rates in wireless communication systems will, in addition to a higher spectral efficiency and lowest signal processing latencies, lead to throughput requirements for the digital baseband signal processing beyond 100 Gbit/s, which is at least one order of magnitude higher than the tens of Gbit/s targeted in the 5G standardization. At the same time, advances in silicon technology due to shrinking feature sizes and increased performance parameters alone won't provide the necessary gain, especially in energy efficiency for wireless transceivers, which have tightly constrained power and energy budgets. In this paper, we highlight the challenges for wireless digital baseband signal processing beyond 100 Gbit/s and the limitations of today's architectures. Our focus lies on the channel decoding and MIMO detection, which are major sources of complexity in digital baseband signal processing. We discuss techniques on algorithmic and architectural level, which aim to close this gap. For the first time we show Turbo-Code decoding techniques towards 100 Gbit/s and a complete MIMO receiver beyond 100 Gbit/s in 28 nm technology.","PeriodicalId":251688,"journal":{"name":"2017 IEEE International Workshop on Signal Processing Systems (SiPS)","volume":"191 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121098007","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: 9

Reduced complexity ADMM-based schedules for LP decoding of LDPC convolutional codes 降低复杂度的基于admm的LDPC卷积码LP解码方案

2017 IEEE International Workshop on Signal Processing Systems (SiPS) Pub Date : 2017-10-01 DOI: 10.1109/SiPS.2017.8110012

Hayfa Ben Thameur, B. Gal, N. Khouja, F. Tlili, C. Jégo

引用次数: 1

Model-based dynamic scheduling for multicore implementation of image processing systems 基于模型的多核图像处理系统动态调度

2017 IEEE International Workshop on Signal Processing Systems (SiPS) Pub Date : 2017-10-01 DOI: 10.1109/SiPS.2017.8110003

Jiahao Wu, Timothy Blattner, Walid Keyrouz, S. Bhattacharyya

引用次数: 7

Extended-forward architecture for simplified check node processing in NB-LDPC decoders NB-LDPC解码器中简化检查节点处理的扩展前向架构

2017 IEEE International Workshop on Signal Processing Systems (SiPS) Pub Date : 2017-10-01 DOI: 10.1109/SiPS.2017.8109992

Cédric Marchand, E. Boutillon, Hassan Harb, L. Conde-Canencia, A. Ghouwayel

引用次数: 2

Low-latency software LDPC decoders for x86 multi-core devices 用于x86多核设备的低延迟软件LDPC解码器

2017 IEEE International Workshop on Signal Processing Systems (SiPS) Pub Date : 2017-10-01 DOI: 10.1109/SiPS.2017.8110001

B. Gal, C. Jégo

引用次数: 9