2015 International Conference on Communications, Signal Processing, and their Applications (ICCSPA'15)最新文献

Comparison and design of VCOs for ultra-low power CMOS temperature sensors 超低功耗CMOS温度传感器压控振荡器的比较与设计

2015 International Conference on Communications, Signal Processing, and their Applications (ICCSPA'15) Pub Date : 2015-04-09 DOI: 10.1109/ICCSPA.2015.7081297

Waseem Arshad, R. Ramzan, A. Beg, Nabil Bastaki

{"title":"Comparison and design of VCOs for ultra-low power CMOS temperature sensors","authors":"Waseem Arshad, R. Ramzan, A. Beg, Nabil Bastaki","doi":"10.1109/ICCSPA.2015.7081297","DOIUrl":"https://doi.org/10.1109/ICCSPA.2015.7081297","url":null,"abstract":"Voltage controller oscillator (VCO) based CMOS temperature sensors are capable of lower power operation (albeit at the cost of sensitivity and resolution) than their BJT counterparts. The power consumption of the sense and conversion blocks is much lower than the VCO itself and hence any further power reduction would be a daunting task. In this work, we compare the performance of three types of VCOs that are suitable for ultra-low power CMOS temperature sensing. The proposed VCOs have been implemented in 150 nm standard CMOS technology, and are biased in sub-threshold region to ensure ultra-low power operation. The frequency of operation for the VCOs is purposely kept low in order to reduce the switching losses. The Differential Cross Coupled (DCC) VCO shows the sensitivity of 1.66Hz/°C with power consumption of 2.5nW. While the Current Starved VCO shows better sensitivity, which is 3.66Hz/°C with power consumption of 12nW. The Transmission Gate-based VCO has the worst sensitivity of 0.28Hz/°C with power consumption of 3nW. Based on extensive simulations, we conclude that the DCC-based VCO is the best choice based on its medium sensitivity and ultra-low power consumption.","PeriodicalId":395644,"journal":{"name":"2015 International Conference on Communications, Signal Processing, and their Applications (ICCSPA'15)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121063009","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

Rayleigh fading channel estimation using MMSE estimator for MIMO-CDMA system 基于MMSE估计的MIMO-CDMA系统瑞利衰落信道估计

2015 International Conference on Communications, Signal Processing, and their Applications (ICCSPA'15) Pub Date : 2015-04-09 DOI: 10.1109/ICCSPA.2015.7081282

K. Mahmood, S. M. Asad, M. O. B. Saeed, M. Moinuddin, A. Zerguine

引用次数: 5

Using facial images for the diagnosis of genetic syndromes: A survey 使用面部图像诊断遗传综合征:一项调查

2015 International Conference on Communications, Signal Processing, and their Applications (ICCSPA'15) Pub Date : 2015-04-09 DOI: 10.1109/ICCSPA.2015.7081271

M. Rai, N. Werghi, H. Al-Muhairi, Habiba S. Alsafar

引用次数: 16

Design of Differentially Encoded-Differential Chaos Shift Keying system 差分编码-差分混沌移位键控系统设计

2015 International Conference on Communications, Signal Processing, and their Applications (ICCSPA'15) Pub Date : 2015-04-09 DOI: 10.1109/ICCSPA.2015.7081266

N. Albassam

{"title":"Design of Differentially Encoded-Differential Chaos Shift Keying system","authors":"N. Albassam","doi":"10.1109/ICCSPA.2015.7081266","DOIUrl":"https://doi.org/10.1109/ICCSPA.2015.7081266","url":null,"abstract":"In this paper, a new differentially coherent chaos-based communication scheme is proposed and named as Differentially Encoded-Differential Chaos Shift Keying (D-DCSK). The system utilizes the correlation relationship between chaotic segment and its shifted version. At the transmitter, transitions between successive bits are detected by XOR operation. Based on XOR output, the chaos source generates either a new segment or repeated copy of the previous segment. At the receiver, a reference bit is initialized, and each received segment is correlated with the previous over one bit duration. Correlation value is compared with a threshold and information bits are decoded by comparing threshold output with an updated reference bit. Bit-Error-Rate (BER) performance of D-DCSK is compared with conventional correlation delay shift keying (CDSK), and Chaotic ON-OFF keying (COOK) schemes in Additive White Gaussian Noise (AWGN) environment and with different values of spreading factors. In addition to the simplicity of the structure, results show that the proposed scheme outperforms other systems at higher values of the spreading factor.","PeriodicalId":395644,"journal":{"name":"2015 International Conference on Communications, Signal Processing, and their Applications (ICCSPA'15)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127925406","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

Aspect dependent multipath ghost suppression in TWRI under compressive sensing framework 基于压缩感知的TWRI多径鬼影抑制

2015 International Conference on Communications, Signal Processing, and their Applications (ICCSPA'15) Pub Date : 2015-04-09 DOI: 10.1109/ICCSPA.2015.7081281

Abdi T. Abdalla, A. Muqaibel, S. Al-Dharrab

引用次数: 25

On Radio network planning for next generation 5G networks: A case study 下一代5G网络的无线网络规划:一个案例研究

2015 International Conference on Communications, Signal Processing, and their Applications (ICCSPA'15) Pub Date : 2015-04-09 DOI: 10.1109/ICCSPA.2015.7081315

Wissam El-Beaino, Ahmad M. El-Hajj, Z. Dawy

{"title":"On Radio network planning for next generation 5G networks: A case study","authors":"Wissam El-Beaino, Ahmad M. El-Hajj, Z. Dawy","doi":"10.1109/ICCSPA.2015.7081315","DOIUrl":"https://doi.org/10.1109/ICCSPA.2015.7081315","url":null,"abstract":"The continuing growth in demand for better mobile experience, higher data rates and lower latencies is driving the development of the forthcoming generation of wireless systems, namely, 5G. Radio network planning (RNP) is one of the essential stages in deploying a wireless network that meets certain coverage, capacity and quality of service (QoS) requirements. While the RNP problem has been studied for existing wireless standards, the major advancements introduced in the upcoming 5G standard necessitate a reinvestigation of the problem. To this end, this paper investigates the RNP process in the context of the upcoming 5G networks. The planning process will minimize and optimize the locations of base stations (BSs) in a selected geographical area using a heuristic algorithm. Even though 5G is still being standardized, the paper will take into account some of the key aspects that would constitute the core of next generation networks such as the use of millimeter wave (mmw) carrier frequencies, and the eventual deployment of heterogeneous and dense networks. Different facets of the 5G RNP process are evaluated for various network scenarios.","PeriodicalId":395644,"journal":{"name":"2015 International Conference on Communications, Signal Processing, and their Applications (ICCSPA'15)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132336453","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: 31

A robust histogram-based image segmentation ASIC design for System-on-Chip using 65nm technology 采用65nm技术的基于直方图的图像分割系统集成电路设计

2015 International Conference on Communications, Signal Processing, and their Applications (ICCSPA'15) Pub Date : 2015-04-09 DOI: 10.1109/ICCSPA.2015.7081298

Ehab Salahat, H. Saleh, M. S. Zitouni, A. Sluzek, B. Mohammad, M. Al-Qutayri, Mohammad Ismail

引用次数: 2

An optimized Double-Dwell frequency synchronization algorithm for OFDM signals 一种优化的OFDM信号双驻留频率同步算法

2015 International Conference on Communications, Signal Processing, and their Applications (ICCSPA'15) Pub Date : 2015-04-09 DOI: 10.1109/ICCSPA.2015.7081267

Nour Kousa, M. El-Tarhuni

引用次数: 1

Enhanced fingerprinting in WLAN-based indoor positioning using hybrid search techniques 基于无线局域网的室内定位中使用混合搜索技术的增强指纹识别

2015 International Conference on Communications, Signal Processing, and their Applications (ICCSPA'15) Pub Date : 2015-04-09 DOI: 10.1109/ICCSPA.2015.7081313

Ayah Abusara, Mohamed S. Hassan

引用次数: 7

A study on Non-contiguous Carrier Interferometry code for Cognitive Radio 认知无线电非连续载波干涉测量码的研究

2015 International Conference on Communications, Signal Processing, and their Applications (ICCSPA'15) Pub Date : 2015-04-09 DOI: 10.1109/ICCSPA.2015.7081285

M. Mukherjee, Prashant Kumar, Rakesh Matam

{"title":"A study on Non-contiguous Carrier Interferometry code for Cognitive Radio","authors":"M. Mukherjee, Prashant Kumar, Rakesh Matam","doi":"10.1109/ICCSPA.2015.7081285","DOIUrl":"https://doi.org/10.1109/ICCSPA.2015.7081285","url":null,"abstract":"Non-contiguous Carrier Interferometry (NC-CI) signature waveforms have been proposed for Dynamic Spectrum Access (DSA) and Cognitive Radio (CR) system in the literature. Walsh-Hadamard (WH) codes cannot ensure orthogonality for non-contiguous carrier allocation, when the number of non-contiguous carrier is not a multiple of 4. In literature, NC-CI and binary orthogonal codes of any code length are proposed for non-contiguous spectrum allocation. In this paper the cross-correlation properties of NC-CI signature waveforms for non-contiguous CI orthogonal frequency division multiplexing (NC-CI/OFDM) and NC-CI multicarrier code division multiple access (NC-CI/MC-CDMA) have been evaluated through simulation and analysis over AWGN channel. Time domain NC-CI waveforms have also been examined for non-contiguous allocation. Cross-correlation analysis and time domain waveforms show that NC-CI codes maintain orthogonality over non-contiguous subcarrier allocation in single user and multiuser environments. For WH code, it has been shown that orthogonality can be maintained with a loss of data rate.","PeriodicalId":395644,"journal":{"name":"2015 International Conference on Communications, Signal Processing, and their Applications (ICCSPA'15)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115958787","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