PERFORMANCE ANALYSIS OF MIMO MOBILE UNDERWATER ACOUSTIC NETWORKS
Published In: 7TH INTERNATIONAL CONFERENCE ON ADVANCES IN COMPUTING, COMMUNICATION AND INFORMATION TECHNOLOGY
Author(s): ANDREJ STEFANOV
Abstract: The paper considers the average frame error probability (FEP) of mobile underwater acoustic networks consisting of autonomous underwater vehicles (AUVs) with multiple transmitters and receivers (MIMO). The MIMO AUVs utilize multihop transmissions to route the information through the network.It is based on a modified version of the reserve listen and go transmission protocol that incorporates request to send (RTS) and clear to send (CTS) messages before the transmission with the aim of reducing the impact of network interference.The mobility model is direction persistent. Each channel experiences frequency dependent path loss, Ricean fading and interference.Numerical examples illustrate the average route FEP performance.
- Publication Date: 28-Oct-2018
- DOI: 10.15224/978-1-63248-162-7-24
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A MAPPING AND SORTING HYBRID TECHNIQUE FOR COLOR IMAGE PALETTE EXTRACTION
Published In: 7TH INTERNATIONAL CONFERENCE ON ADVANCES IN COMPUTING, COMMUNICATION AND INFORMATION TECHNOLOGY
Author(s): GONZALO URCID , ROCIO MORALES-SALGADO
Abstract: This paper introduces a hybrid computational technique that combines a vector to scalar mapping and single key numerical sorting to extract the color palette of an image coded in RGB (Red-Green-Blue) space. Thus a data set of color pixels in three dimensional integer space is mapped to an appropriate scalar data set that can be used to perform a fast numerical sort.The resulting ordered data set can be readily scanned to count all distinct colors and then remapped to its original dimensionality to obtain the image color palette.Explicit direct and inverse mappings are provided including several examples to illustrate the proposed mapping-sorting technique
- Publication Date: 28-Oct-2018
- DOI: 10.15224/978-1-63248-162-7-25
- Views: 0
- Downloads: 0