303 articles for “Data Communication (DC)”

Also matching:3 authors 9 special issues

Research ArticleOpen accessAll words, across the recordThe Performance of a Dual Header Pulse Interval Modulation in the Presence of Artificial Light Interferences in an Indoor Optical Wireless Communications Channel with Wavelet DenoisingS. Rajbhandari, Z. Ghassemlooy, M. AngelovaProblem statement: Similar to other baseband modulation schemes, the performance of the Dual Header Pulse Interval Modulation (DH-PIM) is adversely affected by Artificial Light Interferences (ALI) in an indoor Optical Wireless Communications (OWC) channel. Approach: The Discrete Wavelet Transform (DWT) based denoising is studied for reducing the effect of the ALI. Computer simulation is carried out to demonstrate the effectiveness … …American Journal of Engineering and Applied Sciences, Vol. 4, Issue 4 · 18 Jan 2012 · 7,780 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordSocio-Demographic Factors Affecting Attitude towards Information and Communication Technology UsageMusa Abu Hassan, Bahaman Abu Samah, Hayrol Azril Mohamed Shaffril, Jeffrey Lawrence D’SilvaProblem statement: Rural development through ICT has been the focus of the Malaysian government. ICT is an important tool nowadays and in order to be a developed community, the community especially those in the rural areas must use it wisely. Besides the numerous benefits offered by the ICT, it would be helpful to know whether the rural community especially their … …American Journal of Applied Sciences, Vol. 8, Issue 6 · 13 Jun 2011 · 8,578 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordDigital Video Watermarking in the Discrete Cosine Transform DomainSadik Ali M. Al-Taweel, Putra Sumari, Saleh Ali K. Alomari, Anas J.A. HusainProblem statement: Nowadays, digital watermarks have recently become recognized as a solution for protecting copyright of the digital multimedia. For a watermark to be useful, it must be perceptually invisible and robust against any possible attack and image processing by those who seek to corsair the material, researchers have considered various approaches like JPEG compression, geometric distortions and noising. Approach: … …Journal of Computer Science, Vol. 5, Issue 8 · 31 Aug 2009 · 7,246 accessesView PDF Cite