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propagation models lead to networks with high co-channel interference and a waste of power. In this paper, we aim to adapt a propagation model for Salalah (OMAN) as we examine the applicability of Okumura-Hata model in Oman in GSM frequency band. The study was carried out for urban area, since measurements provided from OmanMobile were about the urban(More)
  • Zia Nadir
  • 2012 Computing, Communications and Applications…
  • 2012
This paper attempts to provide some insight into the nature of radio propagation in that part of the spectrum (UHF) used by experimenters. As we know that the need for high quality and high capacity networks and estimating coverage accurately has become extremely important. Therefore, for more accurate design coverage of modern cellular networks, signal(More)
In this paper, a technique is proposed for enhancing energy harvesting devices. The design is capable of charging small power consumption sensors by capturing ambient radio frequency (RF) waves. The technique comprises the use of high-profile monopole antenna array with a reflector in order to maximize the RF energy received by the antenna system.(More)
This paper describes a method of charging a low power sensor by harvesting RF signals. The paper introduces an integration scheme of the RF harvester consisting of voltage booster and a rectifier to convert the AC voltage to DC voltage. The work presented here focuses on modeling and implementation of a design. Results show good improvement.
This paper examines the applicability of Okumura-Hata model in Oman in GSM frequency band. The study was carried out for open area only, since measurements provided from OmanMobile were about the open areas. The mean square error (MSE) was calculated between measured path loss values and those predicated on basis of Okumura-Hata model for an open area [1 ].(More)
The cellular mobile communication industry has recently been one of the fastest growing industries. This paper presents efficient techniques in the design of switching mode class E power amplifiers by reducing switching losses. A typical class E circuit has been design-optimized for 900 and 1800 MHz. Matching networks are used to reduce power consumption.(More)
In this paper, we aim to adapt a propagation model for Salalah (OMAN) as we examine the applicability of Okumura-Hata model in Oman in GSM frequency band. The study is in continuation to the work by authors which was carried out for urban area due to the data obtained from local operator. We accomplish the modification of model by investigating the(More)
In this paper, the conductivity and equivalent salt deposit density (ESDD) of glass plate under contaminated condition has been measured in the laboratory. Different concentrations of salt solutions are used in the experiments. Test results in terms of conductivity and ESDD are plotted against salt concentration and the relationship between the conductivity(More)