The paper presents a novel allocation algorithm to allocate independent real time tasks on a processor in a way that improves the processor's throughput (Processor's throughput is the number of tasks the processor can accept for... more
The tremendous growth in the information culture, efficient digital searches are needed to extract and identify information from huge data. The notion that evolution in silicon technology for computer processing speed could handle the... more
Modern parallel programming frameworks like OpenMP often rely on shared memory concepts to harness the processing power of parallel systems. But for embedded devices, memory coherence protocols tend to account for a sizable portion of... more
Cellular positioning has been a very active research area for the last decade. Large improvement in accuracy has been made to support, for example, e-call and other location-based services. Traditionally, cellular positioning has been... more
The processing power and network bandwidth required for true immersive telepresence applications are only now beginning to be available. We draw from our experience developing stereo based tele-immersion prototypes to present the main... more
Bandwidth Extension has emerged as an important tool for the satisfactory performance of low bit rate audio and speech codecs. In this paper we describe the components of a novel integrated audio bandwidth extension toolkit (ABET). The... more
Cellular positioning has been a very active research area for the last decade. Large improvement in accuracy has been made to support, for example, e-call and other location-based services. Traditionally, cellular positioning has been... more
As the latest extension of MPEG-4 Audio coding, MPEG-4 Lossless Audio Coding includes a scalable audio coding solution (SLS) that integrates the functionalities of lossless audio coding, perceptual audio coding, and fine granular scalable... more
Location management procedures, in conjunction with the millions of users expected to subscribe to third generation mobile telecommunication systems, will generate a huge signaling load. In this paper, we propose a method which aims at... more
ÐSoftware architecture plays an important role in determining software quality characteristics, such as maintainability, reliability, reusability, and performance. Performance effects of architectural decisions can be evaluated at an... more
Interconnection Networks are playing a vital role in parallel processing. The speed of hardware has become proportional to response time of electronic circuits. But requirement for more reliability, bandwidth, processing power and... more
The processing power and network bandwidth required for true immersive telepresence applications are only now beginning to be available. We draw from our experience developing stereo based tele-immersion prototypes to present the main... more
This paper proposes energy-efficient coordinated beamforming strategies for multi-cell multiuser multiple-input single-output system. We consider a practical power consumption model, where part of the consumed power depends on the base... more
This paper proposes an analysis technique for wide-band audio applications based on the predictability of the temporal evolution of Quadrature Mirror Filter (QMF) sub-band signals. The input audio signal is first decomposed into 64... more
This paper proposes a technique for wide-band audio applications based on the predictability of the temporal evolution of Quadrature Mirror Filter (QMF) sub-band signals. An input audio signal is first decomposed into 64 sub-band signals... more
MPEG-4 AAC audio encoder is developed. AAC main and AAC Low Complexity object types, defined as part of Main profile in General Audio part of ISO/IEC 14496-3 (MPEG-4) standard, are implemented. Encoder targets high-quality, wideband,... more
Cloud computing provides processing power in form of virtual machines. This processing power can be given to very big and small devices. Similarly for providing processing power, devices with small or big processing power can be utilized.... more
The paper presents a novel allocation algorithm to allocate independent real time tasks on a processor in a way that improves the processor's throughput (Processor's throughput is the number of tasks the processor can accept for... more
he restructuring of the power industry has introduced even more stringent criteria for supervising the system operation and monitoring performance of the equipment than before. Translated into the field of monitoring the operation of... more
With the emergence of the cloud computing paradigm and the continuous search to reduce the cost of running Information Technology (IT) infrastructures, we are currently experiencing an important change in the way these infrastructures are... more
In cloud-radio access network, baseband-unit (BBU) aggregation schemes have been intensively discussed to improve the efficiency of resources in light traffic times. Also, driven by the emerging optical fronthaul, traffic migration is... more
Location management procedures, in conjunction with the millions of users expected to subscribe to third generation mobile telecommunication systems, will generate a huge signaling load. In this paper, we propose a method which aims at... more
Location management procedures, in conjunction with the millions of users expected to subscribe to third generation mobile telecommunication systems, will generate a huge signaling load. In this paper, we propose a method which aims at... more
With the emergence of the cloud computing paradigm and the continuous search to reduce the cost of running Information Technology (IT) infrastructures, we are currently experiencing an important change in the way these infrastructures are... more
Accuracy" can be expressed as the percentage of calls for which paging is completed successfully in the first paging step (typical value 90%).
Our research group, interested in outdoor scenes, has developed a methodology to register a CAD model of a city, with images taken with video cameras installed in a car, while driving city streets. So, we can merge video captured data and... more
The necessity for employing various location management procedures, in conjunction with the millions of users expected to subscribe to third generation mobile telecommunication systems, will generate a huge amount of signalling load. In... more
Software architecture plays an important role in determining software quality characteristics, such as maintainability, reliability, reusability, and performance. Performance effects of architectural decisions can be evaluated at an early... more
Cellular positioning has been a very active research area for the last decade. Large improvement in accuracy has been made to support, for example, e-call and other location-based services. Traditionally, cellular positioning has been... more
Getting good I/O performance from parallel programs is a critical problem for many application domains. In this paper, we report our experience tuning the I/O performance of four application programs from the areas of satellite-data... more
Cellular positioning has been a very active research area for the last decade. Large improvement in accuracy has been made to support, for example, e-call and other location-based services. Traditionally, cellular positioning has been... more
We will explore how processing power of LEON3 processor can be enhanced by connecting small commercially available embedded FPGA (eFPGA) IP with the processor. We will analyze integration of eFPGA with LEON3 in two ways, inside the... more
Small-cell systems based on cloud radio access network (cloud-RAN) architecture have been proposed as promising solutions to meet the ever-increasing capacity demand of the next-generation wireless access networks. By centralizing the... more
Small-cell systems based on cloud radio access network (cloud-RAN) architecture have been proposed as promising solutions to meet the ever-increasing capacity demand of the next-generation wireless access networks. By centralizing the... more
he restructuring of the power industry has introduced even more stringent criteria for supervising the system operation and monitoring performance of the equipment than before. Translated into the field of monitoring the operation of... more
In this paper, a new bit allocation algorithm, called EBFOS (Enhanced BFOS), is proposed for the MPEG-4 Advanced Audio Coding (AAC) scheme. The notion of "bit-use efficiency" is suggested and the basic idea behind our approach is "give... more
he restructuring of the power industry has introduced even more stringent criteria for supervising the system operation and monitoring performance of the equipment than before. Translated into the field of monitoring the operation of... more
Multiprocessing systems consisting of many processors, memory modules and interconnection links are being designed and implemented. Improvements in technology have reduced the failure rates of all system components. However, the large... more
When designing multistage multiprocessors consisting of a large number of components (e.g., processors, memories, and interconnection switches) we must expect some of the system components to become faulty while the system is in... more
Good water management is literally vital for the arid and semi-arid regions of the planet. Yet good water management requires multidisciplinary expertise, since one must consider climatic, hydrological, economical and social aspects to... more
Recent advances in digital imaging technology combined with the next generation digital wireless communication has great potential to transform the paradigm for how humans will communicate visual information with one another in the next... more
Compact-design OHL provide a 1.5-fold increase capacity without raising voltage class. A 1.5–2-fold reduction in the area of land allocated for OHL. An electromagnetic field reduction in the external space, decreasing environmental... more
Recent advances in digital imaging technology combined with the next generation digital wireless communication has great potential to transform the paradigm for how humans will communicate visual information with one another in the next... more
With the emergence of utility computing and the continuous search for reducing the cost of running Information Technology (IT) infrastructures, we will soon experience an important change on the way these infrastructures are assembled,... more
With the emergence of utility computing and the continuous search for reducing the cost of running Information Technology (IT) infrastructures, we will soon experience an important change on the way these infrastructures are assembled,... more