Samarendra Nath Sur

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General Purpose Graphics Processing Units (GPGPUs) are rapidly becoming an integral part of highperformance system architectures. The Tianhe-1A and Tsubame systems have received significant attention for their architectures that leverage GPGPUs. Increasingly many scientific applications that were originally written for CPUs using MPI for parallelism are(More)
Scientific computing is credited for many of the technological breakthroughs of our generation. It is used in fields ranging from drug discovery, aerospace, weather prediction to seismic analysis and many others. Scientific computation often deals with very large amounts of data and its algorithms need to compute results from mathematical models. Due to its(More)
With the successful worldwide deployment of 3rd generation mobile communication, security aspects are ensured partly. Researchers are now looking for 4G mobile for its deployment with high data rate, enhanced security and reliability so that world should look for CALM, Continuous Air interface for Long and Medium range communication. This CALM will be a(More)
In this paper, we discuss a Spread Spectrum based radar system for car detection in the road and autonomous guidance of vehicles. An autonomous intelligent vehicle has to perform a number of functionalities. Segmentation of the road, determining the boundaries to drive in and recognizing the vehicles and obstacles around are the main tasks for vision guided(More)
We consider Vertical Bell Laboratories Layered Space-Time (V-BLAST) systems in correlated multiple-input multiple-output (MIMO) Nakagami-m fading channels with equal power allocated to each transmit antenna and also we consider that the channel state information (CSI) is available only at the receiver. Now for practical application, study of the VBLAST MIMO(More)
Multiple input multiple output (MIMO) system using multiple transmit and receive antennas are widely recognized as the vital breakthrough that will allow future wireless systems to achieve higher data rates and also to increase diversity to combat channel fading. Therefore, a MIMO system can provide capacity gain and diversity gain. In this paper, we(More)
RADAR images of contiguous targets often suffer from side lobe enhancement due to environmental effect. This leads to false alarm in target detection and also degradation in image quality. In this paper, the CLEAN algorithms are introduced to eliminate side lobe enhancement and significantly improve the target detection performance and image quality. The(More)