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It is extensively endorsed that preserving the intrinsic geometrical features of an image is essential while denoising it. With an aim to achieve this several directional image representations have been given in the recent literature. In this paper an efficient denoising scheme using an innovative method of calculating the residue image is being proposed. The residue image is further thresholded to...
In this paper, a design and implementation of single-band E-shaped Microstrip patch antenna for IEEE 802.11b (2.38GHz ∼ 2.455 GHz) frequency band represented. An E-shaped patch antenna with substrate thickness of h=2mm, relative permittivity of dielectric substrate is 2.55 and resonate at resonance frequency of fr = 2.4 GHz for Bluetooth applications is designed and simulated successfully [2–3]. The...
Ongoing research has made possible for electronic devices to operate only at a few micro-watts. Hence we have a possibility of making self-sustainable devices, if only some mechanism can be developed to generate the power within these devices. Piezoelectric mems are one of such devices that harvest energy from ambient vibrations and the energy harvested from these are quite sufficient for sustaining...
Wavelet based OFDM has an upper edge over Fast Fourier transform (FFT) based OFDM in terms of orthogonality and bandwidth usage. Though these qualities are an advantage, the fluctuations in input signal's envelope cause a hike in Peak to Average Power ratio (PAPR). To tackle this problem we make use of PAPR reduction techniques in wavelet based OFDM. The results are analyzed using clipping, companding,...
This paper introduces a new optimization technique known as Swine Influenza Model based Optimization (SIMBO). It is mimicked from Susceptible–Infectious–Recovered (SIR) models of swine flu. The development of SIMBO follows through treatment (SIMBO-T), vaccination (SIMBO-V) and quarantine (SIMBO-Q) based on probability. The SIMBO variants can be used to optimize complex multimodal functions with improved...
This paper proposes fusion of synchronous germ computing (SGC) with twin swarm intelligence (TSI) technique named as SGCTSI to enhance quality of global solutions with faster convergence of multimodal functions. In this paper, initially the authors tried to increase the speed of bacteria by updating bacteria positions synchronously, which is treated as SGC. In SGC, all the bacteria update their positions...
This paper presents fusion of Bacterial Foraging with parameter free Particle Swarm Optimization (HBF-pfPSO). The proposed technique is used to enhance quality of global optima of multimodal functions. The authors propose two major modifications in Bacterial Foraging Optimization (BFO). Firstly, all bacteria position and direction are updated after all fitness evaluations instead of each fitness evaluation...
Electromyography (EMG) signals can be used for clinical or biomedical applications as a tool for understanding muscle behavior and activity during static as well as dynamic states. In this paper, the authors aim to compare the EMG activity recorded from a selected group of leg muscles during walking on level ground (at self selected) and on treadmill at two and two pre-determined speeds. The SEMG...
In this paper, the authors propose a small population based modified parallel particle swarm optimization (SPMPPSO) and its application to reduce computational time for motion estimation in video sequence. In motion estimation, initial search, search space, matching criteria, search parameter and step size are important aspect to predict the position of the current macro block for which motion vector...
In this paper, the authors propose a new evolutionary optimization i.e. synchronous bacterial foraging optimization (SBFO). The SBFO can be used for optimization of multimodal and high dimensional functions. It also enhances computational throughput and global search capability. The convergence of original BFO to the optimum value is very slow and its performance is also heavily affected with increased...
The rapid growth of Universal Remote Controls, Interactive Remote Controls, electronics Products and Infra-red (IR) Database business has increased the need for effective and standardized IR Database compression techniques. In order to support a large number of Remote control models in a Universal remote, one must compress the available IR database as best as possible. This paper presents a new algorithm...
IEEE 802.11 wireless networks have caught the fancy of wireless service providers and are being very commonly deployed for providing internet access and real time services at public places like airports, hotels and university campuses. We have proposed and implemented a practical handoff technique aimed at reducing handoff latency to less than 10ms. Handoff latency has been reduced by decoupling scanning...
IEEE 802.11 wireless networks have caught the fancy of wireless service providers and are being very commonly deployed for providing Internet access and real time services at public places like airports, hotels and university campuses. We have proposed and implemented a practical handoff technique aimed at reducing handoff latency to less than 10ms. Handoff latency has been reduced by decoupling scanning...
In this paper, a genetic algorithm (GA) has been used to design the beampattern of the non-uniform linear array with minimum side lobe level and null control. The evaluation or cost function has been written for the array geometry with the goal of minimum side lobe level and null control in certain directions. Design examples employing the GA for finding the optimum element locations have been illustrated...
802.11 standards have been defined by IEEE and are in continuous state of evolution and current research in this area is focused on providing data rates, QOS, security and interoperability equivalent to their wired counterparts. Provision of mobility in 802.11 based wireless networks is another big issue and algorithms providing low latency handoff with reduced data loss and signaling overhead needs...
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