2014 International Conference on Communication and Signal Processing最新文献_第9页

High density impulse noise removal using BDND filtering algorithm 基于BDND滤波算法的高密度脉冲噪声去除

2014 International Conference on Communication and Signal Processing Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6950186

Gophika Thanakumar, S. Murugappriya, G. Suresh

{"title":"High density impulse noise removal using BDND filtering algorithm","authors":"Gophika Thanakumar, S. Murugappriya, G. Suresh","doi":"10.1109/ICCSP.2014.6950186","DOIUrl":"https://doi.org/10.1109/ICCSP.2014.6950186","url":null,"abstract":"Switching median filters outperform standard median filters in the removal of impulse noise. This is because, it considers only the noisy pixels and performs filtering operation on that pixels without considering noise-free pixels. The Boundary Discriminative Noise Detection (BDND) filter is proven to operate effectively under different impulse noise models. It initially classifies pixels into three groups as (a) low intensity impulse noise (b) high intensity impulse noise (c) uncorrupted pixels. Then noise detection and filtering steps are performed. Pixel misclassification is the main drawback of BDND filtering algorithm. So we modify the filtering step of this algorithm and named it as modified boundary discriminative noise detection (MBDND). The two modifications incorporated are as follows: (1) Expansion of filtering window. (2) Incorporating spatial and intensity information. By introducing these modifications into the algorithm, it is found that there is increase in the performance and the quality of image has improved. Results are compared with other median filters like Center Weighted Median Filter (CWMF), Progressive Switching Median Filter (PSMF), Adaptive Threshold Median Filter (ATMF) and it is found that MBDND performs well even at high noise density (90%).","PeriodicalId":149965,"journal":{"name":"2014 International Conference on Communication and Signal Processing","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122984193","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

Design of CPW fed monopole microstrip patch antenna for Wi-Fi application 用于Wi-Fi应用的CPW馈电单极微带贴片天线设计

2014 International Conference on Communication and Signal Processing Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6950183

S. Chidambara Krishnan, S. Arunmozhi

引用次数: 3

Compress-and-forward relaying with polar codes for LTE-A system LTE-A系统用极性编码的压缩转发中继

2014 International Conference on Communication and Signal Processing Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6949953

N. Madhusudhanan, L. Nithyanandan

引用次数: 9

Performance analysis of selection combining diversity scheme in generalised Rayleigh fading channels 广义瑞利衰落信道中选择组合分集方案的性能分析

2014 International Conference on Communication and Signal Processing Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6949986

Sirisha Malluri, V. K. Pamula

引用次数: 1

Conventional Band (C-band) Wavelength Division Multiplexed Passive Optical Network (WDM-PON) 常规波段(c波段)波分复用无源光网络(WDM-PON)

2014 International Conference on Communication and Signal Processing Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6949866

Vivek Kachhatiya, S. Prince

引用次数: 1

An approach to assure QoS for dynamically reconfigurable component-based software systems 一种保证基于组件的动态可重构软件系统QoS的方法

2014 International Conference on Communication and Signal Processing Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6950070

R. Reeta, Prof.A. K. Mariappan

引用次数: 1

A simple architecture for 40 Gbps optical CSRZ - QDPSK transmitter 40gbps光CSRZ - QDPSK发射机的简单结构

2014 International Conference on Communication and Signal Processing Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6950111

G. M. Anoja Derlin Rose, C. Rimmya, M. Ganesh Madhan

引用次数: 1

Signal detection for Spatially Multiplexed multi input multi output (MIMO) systems 空间复用多输入多输出(MIMO)系统的信号检测

2014 International Conference on Communication and Signal Processing Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6949914

Komal Punia, Emy Mariam George, K. Vinoth Babu, G. Ramachandra Reddy

引用次数: 3

Performance of cooperative communication aided MC-CDMA system using transmitter preprocessing based on vector quantized CSI 基于矢量量化CSI的发射机预处理协同通信辅助MC-CDMA系统性能研究

2014 International Conference on Communication and Signal Processing Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6950138

Ananya Ravi, P. Nagaradjane, Nagarajan Velmurugan

{"title":"Performance of cooperative communication aided MC-CDMA system using transmitter preprocessing based on vector quantized CSI","authors":"Ananya Ravi, P. Nagaradjane, Nagarajan Velmurugan","doi":"10.1109/ICCSP.2014.6950138","DOIUrl":"https://doi.org/10.1109/ICCSP.2014.6950138","url":null,"abstract":"In this contribution, we investigate the performance of a cooperative communication aided downlink (DL) multi-carrier code division multiple access (MC-CDMA) system with the aid of transmitter preprocessing (TP) realized based on vector quantized (VQ) channel state information (CSI) acquired via feedback channels. In our work, we assume that each of the K destination mobile stations (DMS) is supported by a group of mobile stations (MSs) acting as relays to achieve the relay diversity. Specifically, we employ preprocessing at the base station (BS) to suppress the multi-user interference (MUI) at the relays that precludes in achieving the relay diversity. Further, inter-relay interference (IRI) at the destination mobile stations (DMSs) is mitigated with the support of the preprocessing operated at the relays. To be specific, the preprocessing operated at the BS is based on the maximum-signal-to-interference-plus-noise ratio (MSINR) approach, while that operated at the relays is based on the classical minimum-mean-square error principle. Both the preprocessing approaches are formulated based on the VQ-CSI acquired via feedback channels. Our study demonstrates that TP-aided cooperative DL MC-CDMA system results in better achievable bit-error-rate (BER) as the TP assists in achieving the relay diversity by eliminating the DL-MUI and IRI at the relays and the DMSs, respectively. Furthermore, our study reveals that the attainable BER of the VQ-CSI based TP remains close to that attained with the perfect CSI based TP.","PeriodicalId":149965,"journal":{"name":"2014 International Conference on Communication and Signal Processing","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125284274","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

Hybrid antenna selection at transmitter (HAST) scheme for future broadband wireless system 面向未来宽带无线系统的发射端混合天线选择方案

2014 International Conference on Communication and Signal Processing Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6949893

Krishna Bala, K. Nallagatja, G. R. Vinoth Babu, Bibin Reddy, John Baby

引用次数: 3