@article { author = {l-Sherbini, Zianb E and El-Kholy, Mahmoud G. and Saleeb, Adel A.}, title = {Analysis of indoor Geolocation systems based on Angle of Arrival technique}, journal = {Menoufia Journal of Electronic Engineering Research}, volume = {23}, number = {1}, pages = {1-8}, year = {2014}, publisher = {Menoufia University, Faculty of Electronic Engineering}, issn = {1687-1189}, eissn = {2682-3535}, doi = {10.21608/mjeer.2014.63671}, abstract = {This paper is concerned with the indoor geolocation system based upon the angle of arrival technique. Angles of arrival of signal emitted from the tag to the reference nodes are measured. There are errors in the measurement of angles of arrival. The effect of these errors on tag position is studied. Uncertainty in tag position due to errors in measuring angle of arrival using two and three reference nodes is computed. Effect of geometry of arranging the reference nodes upon uncertainty in tag position is studied.}, keywords = {}, url = {https://mjeer.journals.ekb.eg/article_63671.html}, eprint = {} } @article { author = {Elsherbini, Moataz.M. and Gomaa, Aly M.}, title = {Design and Performance of a Multistrip Coupler}, journal = {Menoufia Journal of Electronic Engineering Research}, volume = {23}, number = {1}, pages = {9-18}, year = {2014}, publisher = {Menoufia University, Faculty of Electronic Engineering}, issn = {1687-1189}, eissn = {2682-3535}, doi = {10.21608/mjeer.2014.63673}, abstract = {In this paper, an algorithm suitable for the computer aided design (CAD) has been developed, to give us a table of calculated data which can be used as a design tool for optimum multistrip-coupler. Design criteria for multistrip components are discussed in terms of substrate and bandwidth requirements. In other words, the effects of substrate types and center frequency on the performance of multi-strip coupler in the presence of material, limitations are demonstrated. The obtained results show that, different substrates will enable us to use relatively small size strips which leads to miniaturization the design as well as extends the usefulness of the strip lines to higher frequency}, keywords = {}, url = {https://mjeer.journals.ekb.eg/article_63673.html}, eprint = {} } @article { author = {Yousef, Mohamed I. and Zahra, Mohamed M. and Shalaby, Ahmed S.}, title = {Performance Analysis of Delay Jitter in WiMAX Network}, journal = {Menoufia Journal of Electronic Engineering Research}, volume = {23}, number = {1}, pages = {19-36}, year = {2014}, publisher = {Menoufia University, Faculty of Electronic Engineering}, issn = {1687-1189}, eissn = {2682-3535}, doi = {10.21608/mjeer.2014.65202}, abstract = {With the exploding grow up of mobile users and the release of new wireless applications, radio resource management is principally considered. The Quality of Service (QoS) requirements for the high bandwidth applications such as video conferencing, Voice over IP (VoIP), audio and video streaming and File Transfer Protocol (FTP) have been taking as a major interest for the design of the wireless systems. IEEE 802.16 standard based (WiMAX) is considered one of the important Broadband Wireless Access (BWA) technologies that can satisfy the requirements of heterogeneous traffic. It can be great solution for providing internet access instead of traditional wired broadband networks such as DSL and T1 services. WiMAX systems can be able to provide high peak data rates, mobility service, and high spectral efficiency. So it has encouraged several researchers from both commerce and academia as a result of its high data rate. In this paper the problem of dissipated part of allocated bandwidth in WiMAX network has been taking as a major concern for the design and development of the modified version of scheduling scheme. The purpose of this paper is to evaluate the performance of the jitter in the WiMAX network in Point to Multipoint (PMP) mode. Through using a modified version of MAC construction, simulation results indicate that the proposed scheme can decrease from ten to twenty percent of the average jitter as well as maximizing throughput and minimizing system delay.}, keywords = {}, url = {https://mjeer.journals.ekb.eg/article_65202.html}, eprint = {} }