ملخص الدراسة: Double spatial modulation (DSM) is a transmission technique which has been recently proposed for multipleinput multiple-output (MIMO) communication systems. DSM has a higher spectral efficiency compared with_x000D__x000D_ classical spatial modulation (SM), as it doubles the number of active transmit antennas. In this paper, transmit_x000D__x000D_ antenna selection (TAS) is applied to DSM in order […]

ملخص الدراسة: The Gaza Strip has been suffering from extreme conditions of political conflicts, underdevelopment, poverty, shortage and salinity of water, etc. Most of these conditions resulted from extreme human behavior creating real disasters. Natural disasters had been known since long time, and recently, human disasters became more understandable after several wars had resulted in […]

ملخص الدراسة: Trellis coded modulation (TCM) is a scheme that enhances the error performance without extra power not bandwidth. This paper presents a modified Super-Orthogonal Trellis-Coded Spatial Modulation (SOTC-SM) based on a cyclic structure of the Space Time Coding. The developed code benefits from expanded codebook of the Space Time Block Coded Spatial Modulation (STBC-SM) […]

ملخص الدراسة: This study presents a spectral approach to estimate the time difference of arrival (TDOA) between a reference unit, composed of a pair of very close antennas (small baseline regarding the operating bandwidth), acting as a known fixed location transmitter, and a mobile unit acting as a single antenna receiver. It uses the channel […]

ملخص الدراسة: Mobile computing is an important field in information technology, because of widely using mobile devises and mobile applications. Clustering is a substantial task gives good results with information retrieval (IR); it aims to put automatically similar applications in one cluster. In this paper, we present an unsupervised machine learning based system for automatic […]

ملخص الدراسة: The purpose of this paper is to develop a model for selecting the best contractor in the Gaza Strip using the Artificial_x000D__x000D_ Neural Network (ANN). The contractor’s selection methods and criteria were identified using a field survey. Fifty four engineers_x000D__x000D_ were asked to fill a questionnaire that covers factors related to the selection […]

ملخص الدراسة: The sheltering and housing for special hardship cases families is one of main objectives of UNRWA._x000D__x000D_ It contributes to alleviating the suffering of poor refugee families. There are many problems beyond noninterference in the process of housing, which negatively affects human dignity and the right to housing. This_x000D__x000D_ paper aims to improve the […]

ملخص الدراسة: Background and problem: Integrating lean and green_x000D__x000D_ principles while implementing construction project has_x000D__x000D_ become an important aspect of modern construction._x000D__x000D_ Lean construction and green building are used to maximize the economic benefits, address quality, reduce waste_x000D__x000D_ and minimize the negative environmental impacts in construction._x000D__x000D_ Aims: The objectives of this paper were to measure […]

ملخص الدراسة: Cost escalation is one of serious difficulties that_x000D__x000D_ facing the construction industry. The construction sector_x000D__x000D_ suffers from ever-increasing cost of raw materials,_x000D__x000D_ construction inputs and inflation in domestic and_x000D__x000D_ international markets. The aim of this paper is to identify_x000D__x000D_ factors affecting the cost escalation in construction projects in_x000D__x000D_ the Gaza Strip. This will […]

ملخص الدراسة: In this paper, an effective transmission scheme is proposed for asynchronous cooperative networks with two relays. The need for synchronization is obviated by allowing a single relay to be active in each time-slot of the transmission. However, the scheme still achieves a cooperative diversity order of two through some simple operations introduced at […]