The general TCP protocol doesn’t show good performance in ad hoc network due to nodes mobility and higher vulnerability of the wireless link. This paper proposes a simple end to end approach; in this the hop count of the path and the... more
The general TCP protocol doesn’t show good
performance in ad hoc network due to nodes mobility
and higher vulnerability of the wireless link. This
paper proposes a simple end to end approach; in this
the hop count of the path and the size of delayed
window at receiver end is utilize and also the of CWL
with the RTT variation to control the size of the bursts.
As the number of hop increases chance of congestion
increases, the congestion is not affected by number of
links only but by the length of links as the length
increases the environmental effects also increases. The
simulation result shows 10 to 15 % improvement in
TCP performance over the TCPDCA.
The immense progress in Information Technology has accelerated its use in the domains of management. In the fields of academic publishing too, it has had its great influence. With the advent of the client-server based models of computing... more
The immense progress in Information Technology has accelerated its use in the domains of management. In the fields of academic publishing too, it has had its great influence. With the advent of the client-server based models of computing and the World Wide Web, the whole process merely reduces to typing out the document on the computer, a series of mouse clicks and receiving information via email. Not only does this save the cost of paper publications, it also saves the valuable time of both the publishers and the authors. By making the actual publication process quite convenient, easy and accessible, it helps in shifting the focus of the publishers more onto the quality and content of the journals themselves. Numerous publishing companies have either developed or acquired such IT systems for these tasks, notably. This paper makes a systematic case study of the general functions that such a system has to demonstrate, with SXC-IJACS as an example. The SXC-IJACS system has been developed for the authors' institution as part of the degree thesis requirement of Bhattacharyya and Mondal. A paper on the more technical aspects of the work has been previously published at an international conference.
X-ray image is one of the prominent modality of medical imaging used in medical diagnosis. This may be corrupted with Gaussian noise due to thermal fluctuations during its acquisition. For reducing these noises a method is applied which... more
X-ray image is one of the prominent modality of medical imaging used in medical diagnosis. This may be corrupted with Gaussian noise due to thermal fluctuations during its acquisition. For reducing these noises a method is applied which combines the Anisotropic Diffusion filter with an edge preserved Wavelet Packet Transformation. Here the edges are detected in each sub-band using Sobel edge detection operator and preserved by excluding these edge coefficients during hard thresholding. This method has proposed a new technique to calculate a threshold value for each sub-band of Wavelet Packet.The quality metrics SNR, RMSE, SSIM, Precision, Accuracy and etc are used to measure the performance of this method and shows that this approach is better as compared to other noise reduction methods like Adaptive Median Filter, simple Anisotropic Diffusion and simple Wavelet Packet Transformation.
