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

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":"4 1","pages":"0"},"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

IWT based image transmission in MIMO-CDMA system: Performance results MIMO-CDMA系统中基于小波变换的图像传输:性能结果

2014 International Conference on Communication and Signal Processing Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6949829

K. S. Vishvaksenan, S. Sathiarani, S. Ramyaramalakshmi

引用次数: 0

Landsat image compression using lifting scheme 基于提升方案的陆地卫星图像压缩

2014 International Conference on Communication and Signal Processing Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6950187

L. L. M. Paul Shoba, V. Mohan, Y. Venkataramani

引用次数: 3

Difference expansion based Reversible Data Hiding for medical images 基于差分展开的医学图像可逆数据隐藏

2014 International Conference on Communication and Signal Processing Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6949937

Vinoth Kumar, Natarajan V, Santhosh Muraledharan

{"title":"Difference expansion based Reversible Data Hiding for medical images","authors":"Vinoth Kumar, Natarajan V, Santhosh Muraledharan","doi":"10.1109/ICCSP.2014.6949937","DOIUrl":"https://doi.org/10.1109/ICCSP.2014.6949937","url":null,"abstract":"Reversible Data Hiding (RDH) is the technique of embedding secret messages into a cover image by modifying its pixel values. In RDH technique, both the embedded message and the cover image are recovered. The Difference Expansion is the high quality reversible method for data embedding. The existing Lee method and Pixel Pair Mapping (PPM) method of difference expansion produced redundant space for data embedding by grouping two columns of pixel values. The modified PPM method combines the techniques of existing Lee method and PPM method and groups any number of columns in the forward direction and groups two columns in the reverse direction similar to PPM method. Difference Pair Mapping (DPM) method along both forward and backward direction is implemented to improve the embedding performance by exploiting the statistical properties of an image using prediction based method with arbitrary threshold. The prediction values of pixel-pairs are responsible for providing security to the message being embedded. The simulation results are produced for the modified PPM method and DPM method along both the direction to show the improvement in the embedding capacity.","PeriodicalId":149965,"journal":{"name":"2014 International Conference on Communication and Signal Processing","volume":"34 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132404843","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 reliable optimized clustering in MANET using Ant Colony algorithm 基于蚁群算法的MANET可靠优化聚类

2014 International Conference on Communication and Signal Processing Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6949797

J. John, R. Pushpalakshmi

{"title":"A reliable optimized clustering in MANET using Ant Colony algorithm","authors":"J. John, R. Pushpalakshmi","doi":"10.1109/ICCSP.2014.6949797","DOIUrl":"https://doi.org/10.1109/ICCSP.2014.6949797","url":null,"abstract":"The mobile ad hoc networks is an attractive field to the researchers for its ease in deployment and maintenance. In this work, we focus on the optimization of energy consumption and stability of the node which has become a critical issue in ad hoc networks. Clustering of nodes is one of the significant means to extend lifetime of the network. This paper proposes Ant Colony Optimization (ACO) approach for the optimal selection of cluster heads. This algorithm optimizes communication workload, node lifetime, and mobility. The cluster structure is optimized by the defined probability function for clusters. The probability function is calculated by using the parameters such as residual energy, energy drain rate and mobility factor. Node that has the maximum value for the probability function will select as a cluster head. The overall communication workload is calculated periodically. If its value is high, then cluster head is reassigned. The advantage of this algorithm is that it can better balance the energy consumption of the nodes and increase the stability of the node. Experiment results show that our proposed work results in more energy efficient and stabilized clusters.","PeriodicalId":149965,"journal":{"name":"2014 International Conference on Communication and Signal Processing","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131346423","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: 7

Survey on block matching algorithms for motion estimation 运动估计中的块匹配算法综述

2014 International Conference on Communication and Signal Processing Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6949794

Hussain Ahmed Choudhury, M. Saikia

引用次数: 9

An American Sign Language detection system using HSV color model and edge detection 基于HSV颜色模型和边缘检测的美国手语检测系统

2014 International Conference on Communication and Signal Processing Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6949942

A. Konwar, B. Sagarika Borah, C. T. Tuithung

引用次数: 32

Malicious node detection using minimal event cycle computation method in wireless sensor networks 基于最小事件周期计算方法的无线传感器网络恶意节点检测

2014 International Conference on Communication and Signal Processing Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6949975

J. Priyanka, S. Tephillah, A. Balamurugan

引用次数: 1

Study the effect of music on HRV impulse using multifractal DFA analysis 利用多重分形DFA分析研究了音乐对HRV脉冲的影响

2014 International Conference on Communication and Signal Processing Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6950067

A. Dey, S. Chakraborty, S. Palit, D. K. Bhattacharya, D. N. Tibarewala, Mrityunjoy Roy

引用次数: 3

FPGA implementation of MIMO-OFDM transceiver MIMO-OFDM收发器的FPGA实现

2014 International Conference on Communication and Signal Processing Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6949861

K. Srinandhini, V. Vaithianathan

引用次数: 7