2016 Fourth International Japan-Egypt Conference on Electronics, Communications and Computers (JEC-ECC)最新文献_第4页

Fast multiple-beams direct data domain genetic algorithm beam-forming approach to space-time adaptive processing 快速多波束直接数据域遗传算法波束形成方法的时空自适应处理

2016 Fourth International Japan-Egypt Conference on Electronics, Communications and Computers (JEC-ECC) Pub Date : 2016-05-01 DOI: 10.1109/JEC-ECC.2016.7518957

M. M. Hassan

引用次数: 0

Low Density Parity Check (LDPC) coded MIMO-Constant Envelop Modulation System with IF sampled 1-bit ADC 具有中频采样1位ADC的低密度奇偶校验(LDPC)编码mimo -恒定包络调制系统

2016 Fourth International Japan-Egypt Conference on Electronics, Communications and Computers (JEC-ECC) Pub Date : 2016-05-01 DOI: 10.1109/JEC-ECC.2016.7518954

Ahmed S. A. Mubarak, Amr Amrallah, Hany S. Hussein, E. M. Mohamed

{"title":"Low Density Parity Check (LDPC) coded MIMO-Constant Envelop Modulation System with IF sampled 1-bit ADC","authors":"Ahmed S. A. Mubarak, Amr Amrallah, Hany S. Hussein, E. M. Mohamed","doi":"10.1109/JEC-ECC.2016.7518954","DOIUrl":"https://doi.org/10.1109/JEC-ECC.2016.7518954","url":null,"abstract":"MIMO-Constant Envelop Modulation (CEM) is a very power and complexity efficient system, which is introduced as alternative candidate to the currently used MIMO-Orthogonal Frequency Division Multiplexing (OFDM). CEM system enables to use high efficient nonlinear power amplifier on the transmitter side and 1 bit (low resolution) analog to digital converter (ADC) on the receiver side. Due to adopting the low resolution at the receiver side a great reduction in hardware complexity and power consumption can be achieved. However, there will be a noticeable degradation on the performance of bit error rate (BER) on the receiver side due to sever quantization error introduced by the low resolution ADC, so a forward error correction coding is essential to enhance the BER. In this paper a LDPC coded MIMO-CEM system was used as a replacement for MIMO-OFDM to deal with the BER degradation problem of the CEM system. The performance of the LDPC coded MIMO-CEM with Gaussian Minimum Phase Shift Keying (GMSK) modulation is evaluated over a multi-path Rayleigh fading channel. It showed that LDPC codes are effective to improve the BER performance of CEM on Rayleigh fading channels. According to the simulation results, the MIMO-CEM system provides a significant improvement in BER performance and outperforms the un-coded and the original convolutional coder based CEM systems.","PeriodicalId":362288,"journal":{"name":"2016 Fourth International Japan-Egypt Conference on Electronics, Communications and Computers (JEC-ECC)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131678018","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

A comparative study of the Voltage-to-Time converters (VTCs) and the Voltage-to-Frequency converters (VFCs) circuits 电压-时间变换器(VTCs)和电压-频率变换器(vfc)电路的比较研究

2016 Fourth International Japan-Egypt Conference on Electronics, Communications and Computers (JEC-ECC) Pub Date : 2016-05-01 DOI: 10.1109/JEC-ECC.2016.7518959

Mohammed A. ElGabry, H. Mostafa, A. Soliman

{"title":"A comparative study of the Voltage-to-Time converters (VTCs) and the Voltage-to-Frequency converters (VFCs) circuits","authors":"Mohammed A. ElGabry, H. Mostafa, A. Soliman","doi":"10.1109/JEC-ECC.2016.7518959","DOIUrl":"https://doi.org/10.1109/JEC-ECC.2016.7518959","url":null,"abstract":"Nowadays ADC becomes more essential in emerging applications. ADC is starting to become hindrance to the system in the performance and the power consumption. For high-speed applications, pipelined and flash ADC has dominantly been used over the past decade. Technology scaling and the focus on digital systems with high-performance offer better time resolution by decreasing the gate delay. If the input analog voltage signal is represented in the form of time or frequency, rather than voltage, we can make use of the scaled technologies, low power consumption and die area. Time based ADC (TADC) is different from conventional ADC, because the signal is represented in the form of a stream of series time events. This architecture places the ADC at the front end to create more complex digital circuits for low power applications, and low voltage design. Simulation results show that Voltage-to-Frequency converter (VFC) circuit is better than Voltage-to-Time converter (VTC) circuit in the sensitivity, signal to noise and distortion ratio, effective number of bits, and maximum input frequency, while VTC is better than VFC with respect to the power consumption. VFC is better to be used with the applications that require high input frequency, while VTC is better to be used in applications that require low power consumption.","PeriodicalId":362288,"journal":{"name":"2016 Fourth International Japan-Egypt Conference on Electronics, Communications and Computers (JEC-ECC)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130208995","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

Advanced airborne system for air traget detection and spoofing jammers 先进的机载系统，用于空中市场探测和欺骗干扰

2016 Fourth International Japan-Egypt Conference on Electronics, Communications and Computers (JEC-ECC) Pub Date : 2016-05-01 DOI: 10.1109/JEC-ECC.2016.7518970

A. Almslmany, Tamer H. M. Soliman

引用次数: 1