2017 International Symposium on Signals, Circuits and Systems (ISSCS)最新文献

Extended DES algorithm to Galois Fields 扩展DES算法到伽罗瓦域

2017 International Symposium on Signals, Circuits and Systems (ISSCS) Pub Date : 2017-07-13 DOI: 10.1109/ISSCS.2017.8034875

L. Scripcariu, P. Matasaru, F. Diaconu

{"title":"Extended DES algorithm to Galois Fields","authors":"L. Scripcariu, P. Matasaru, F. Diaconu","doi":"10.1109/ISSCS.2017.8034875","DOIUrl":"https://doi.org/10.1109/ISSCS.2017.8034875","url":null,"abstract":"Data Encryption Standard (DES) was initially considered a strong symmetric encryption algorithm, resistant to all known cryptographic attacks at that time [1]. But the short key used to encrypt data is a weakness of the algorithm. Increasing the data structure size and the key length are two recommended measures that ensure the strength of the encryption algorithm. The running-time is a constraint imposed to the design of the algorithm that restricts its applicability at a moment. Triple-DES (TDES) with 128-bit key will be considered as a candidate to Advanced Encryption Standard (AES) after 2020 when the technology is estimated to be sufficiently developed to run fast enough TDES [2]. Regarding the time, DES can be a good candidate to AES if it is applied on multi-bit symbols instead of bits. We propose an extension of DES algorithm to Galois Fields (GF), with an encryption key of at least 256-bit long. The substitution boxes (S-boxes) are the non-linear component of the algorithm that is decisive for its robustness. The design of multi-bit S-boxes is done using bijective polynomials defined on Galois Fields. DES-256 running on GF (16), with 4-bit symbols, is proposed and presented with all the details.","PeriodicalId":338255,"journal":{"name":"2017 International Symposium on Signals, Circuits and Systems (ISSCS)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115532216","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

DMHT-LEACH: Dynamic multi-hop technique for wireless sensor networks DMHT-LEACH:无线传感器网络动态多跳技术

2017 International Symposium on Signals, Circuits and Systems (ISSCS) Pub Date : 2017-07-13 DOI: 10.1109/ISSCS.2017.8034874

Emad Alnawafa, I. Marghescu

引用次数: 7

Internet of Things and LoRa™ Low-Power Wide-Area Networks: A survey 物联网和LoRa™低功耗广域网:调查

2017 International Symposium on Signals, Circuits and Systems (ISSCS) Pub Date : 2017-07-13 DOI: 10.1109/ISSCS.2017.8034915

A. Lavric, V. Popa

{"title":"Internet of Things and LoRa™ Low-Power Wide-Area Networks: A survey","authors":"A. Lavric, V. Popa","doi":"10.1109/ISSCS.2017.8034915","DOIUrl":"https://doi.org/10.1109/ISSCS.2017.8034915","url":null,"abstract":"Nowadays there is a lot of effort on the study, analysis and finding of new solutions related to high density sensor networks used as part of the IoT (Internet of Things) concept. LoRa (Long Range) is a modulation technique that enables the long-range transfer of information with a low transfer rate. This paper presents a review of the challenges and the obstacles of IoT concept with emphasis on the LoRa technology. A LoRaWAN network (Long Range Network Protocol) is of the Low Power Wide Area Network (LPWAN) type and encompasses battery powered devices that ensure bidirectional communication. The main contribution of the paper is the evaluation of the LoRa technology considering the requirements of IoT. After introduction in Section II the main obstacles of IoT development are discussed, section III addresses the challenges and entails the need for solutions to different problems in WSN research. Section IV presents the LoRaWAN communication protocol architecture requirements while in Section V the LoRa modulation performance is evaluated and discussed. In conclusion LoRa can be considered a good candidate in addressing the IoT challenges.","PeriodicalId":338255,"journal":{"name":"2017 International Symposium on Signals, Circuits and Systems (ISSCS)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116144337","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: 151

An adaptive solution for nonlinear system identification 非线性系统辨识的自适应解

2017 International Symposium on Signals, Circuits and Systems (ISSCS) Pub Date : 2017-07-13 DOI: 10.1109/ISSCS.2017.8034918

Laura-Maria Dogariu, S. Ciochină, C. Paleologu, J. Benesty, P. Piantanida

引用次数: 4

Hybrid image interpolation technique based on nonlinear second and fourth-order diffusions 基于非线性二阶和四阶扩散的混合图像插值技术

2017 International Symposium on Signals, Circuits and Systems (ISSCS) Pub Date : 2017-07-13 DOI: 10.1109/ISSCS.2017.8034863

T. Barbu

引用次数: 3

Revisiting the impedance matching for CS-LNA 再论CS-LNA的阻抗匹配

2017 International Symposium on Signals, Circuits and Systems (ISSCS) Pub Date : 2017-07-13 DOI: 10.1109/ISSCS.2017.8034864

C. Andriesei, Cristian Ţurcă

引用次数: 0

SYMPES technique encoded IP-based secure voice communication system 基于SYMPES技术编码的ip安全语音通信系统

2017 International Symposium on Signals, Circuits and Systems (ISSCS) Pub Date : 2017-07-13 DOI: 10.1109/ISSCS.2017.8034870

B. Yarman, Cem Ulger, A. Aslan

引用次数: 2

On the convergence speed of the Normalized Subband Adaptive Filter: Some new insights and interpretations 关于归一化子带自适应滤波器的收敛速度:一些新的认识和解释

2017 International Symposium on Signals, Circuits and Systems (ISSCS) Pub Date : 2017-07-01 DOI: 10.1109/ISSCS.2017.8034872

J. H. Husøy, M. Abadi

{"title":"On the convergence speed of the Normalized Subband Adaptive Filter: Some new insights and interpretations","authors":"J. H. Husøy, M. Abadi","doi":"10.1109/ISSCS.2017.8034872","DOIUrl":"https://doi.org/10.1109/ISSCS.2017.8034872","url":null,"abstract":"In this paper we revisit the well known and popular Normalized Subband Adaptive Filter (NSAF). Based on an analysis of the algorithm in the mean and using an analysis strategy presented in [1], we find that the NSAF can be seen as a Richardson iteration applied to a preconditioned augmented Wiener-Hopf equation. This equation is formulated in such a way that its convergence speed can be predicted directly from a matrix QT R≂, where QT is a matrix formed as a weighted sum of Toeplitz matrices directly related to the filter banks used and R≂ is a tall, rectangular, autocorrelation matrix. Since the QT R≂ itself is symmetric and Toeplitz, we can make quantitative statements about its convergence speed in much the same way as we can for the least mean square (LMS) algorithm with the important difference that in the NSAF case we can directly use QT to control the convergence speed. Through some experiments we demonstrate the validity of our approach in the prediction of convergence speed. Also, and perhaps more important, we point out that our formalism holds the potential for providing an optimization problem such that the filter banks used in NSAF can be designed based on this rather than merely being selected/postulated as is done presently.","PeriodicalId":338255,"journal":{"name":"2017 International Symposium on Signals, Circuits and Systems (ISSCS)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124909506","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: 4

Texture classification performances of fixed point implementation of Gabor filters recursive approximations 纹理分类性能的定点实现Gabor滤波器递归逼近

2017 International Symposium on Signals, Circuits and Systems (ISSCS) Pub Date : 2017-07-01 DOI: 10.1109/ISSCS.2017.8034943

P. Ungureanu, E. David

引用次数: 1

Considerations on ground station antennas used for communication with LEO satellites 用于与低轨道卫星通信的地面站天线的考虑

2017 International Symposium on Signals, Circuits and Systems (ISSCS) Pub Date : 2017-07-01 DOI: 10.1109/ISSCS.2017.8034912

Adrian Done, A. Căilean, C. Lesanu, M. Dimian, A. Graur

引用次数: 5