In this paper we model and characterize the stability region of IEEE 802.11 Distributed Coordination Function (DCF) both qualitatively and quantitatively. We also provide an intuitive explanation and verification by comparing it to the known stability region of slotted Aloha. We show that the size of backoff window plays a decisive role in shaping the corresponding stability region. Specificall...

This paper presents a fast center weighted rank order filtering algorithm with logarithmic worst case time complexity with respect to the window size. The method is based on a data structure, called an unbalanced “double heap” which naturally supports partition of the window samples into two different “heaps”, greater and smaller than the rth sample. The algorithm is designed for any window siz...

OBJECTIVE To compare the difference in mean stone size, as measured on bone window vs standard soft-tissue window setting using multi-detector computed tomography (MDCT) in patients with a solitary ureteric stone. PATIENTS AND METHODS In all, 60 patients presenting to the emergency and outpatient departments of a University Hospital from May 2015 to October 2015 and fulfilling the inclusion c...

In order to analyse surface electromyography (EMG) signals, it is necessary to extract the features based on a time or frequency domain. These approaches are based on the mathematical assumption of signal stationarity. Stationarity of EMG signals is thoroughly examined, especially in isotonic contractions. According to research, conflicting results have been identified depending on varying wind...

The effectiveness of Savitzky–Golay type symmetric polynomial smoothers is known to be strongly dependent on the window size. Many authors note that selection of the appropriate window size is essential for achieving the correct trade-off between noise reduction and avoiding the introduction of bias. However, it is often overlooked that, in the case of non-stationary signals, the optimal window...

The challenges with respect to mining frequent items over data streaming engaging variable window size and low memory space are addressed in this research paper. To check the varying point of context change in streaming transaction we have developed a window structure which will be in two levels and supports in fixing the window size instantly and controls the heterogeneities and assures homoge...

Synthetic Aperture Radar (SAR) texture is an important derived variable for improving land cover classification accuracy from SAR data. However, a number of factors affect the amount and quality of texture information obtained from radar data and these include: the window size, data type, the size of grey level quantisation, displacement and the look direction. The main aim of this study was to...

MOTIVATION Current high-throughput sequencing has greatly transformed genome sequence analysis. In the context of very low-coverage sequencing (<0.1×), performing 'binning' or 'windowing' on mapped short sequences ('reads') is critical to extract genomic information of interest for further evaluation, such as copy-number alteration analysis. If the window size is too small, many windows will ex...

Customer service level is of prime importance in today competitive world and has various dimensions with delivery quality being one of the most important ones. Delivery quality has several parameters such as deliver time window options, time window size, etc. In this paper we focus on one of these parameters, namely time window setting. It has a direct impact upon customer satisfaction and busi...

Idealized Drawing Window: Because we generally do not have complete control over the window size, it is a good idea to think in terms of drawing on a rectangular idealized drawing region, whose size and shape are completely under our control. Then we will scale this region to fit within the actual graphics window on the display. There are many reasons for doing this. For example, if you design ...