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In this side, some antenna examples have been given which are work in such bands Examples of Microstrip Antennas for Wimax Technology There are many types and shapes of microstrip antennas, which were designed to work in Wimax band such as c-slot, E-shape and others. Because of diverse shapes, just two examples will be presented here L-slot Rectangular Microstrip Patch Antenna for WiMAX and WLAN Applications The designed antenna is shown in Figure The dimension of the antenna were mm in length (L) and mm in width (W), the thickness (h) is 1.5 mm. The substrate was RT Duroid 5880 having dielectric constant of 2.4, the patch was cut into slot with widths, 3.5 mm for w1, w2 is 3 mm, and w3 is 1 mm for the L-shape [3]. Figure 2.12 Geometry of the first example Proposed Antenna Here is a designed antenna result:.. Figure 2.13 Return Loss versus Frequency 18

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Wimax Thesis Paper - Limburg Lokaal

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Hicham Yehia and Hany Kamal [11] discusses the effect of interference in the WiMAX network thereby analyzing the effect of the same on the capacity of the network. Due to imperfections at both the ends of the system i.e. at transmitter and at the receiver, the interference can occur which limits the system performance. At the transmitter due to inefficient filter response, spurious transmission can be encountered and at the receiver, due to insufficient selectivity, the interference will occur. The paper checks the effects of this kind of interference in the WiMAX system which is the main reason behind the degradation in the network capacity.

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Mai Tran, George Zaggoulos, Andrew Nix and Angela Doufexi [7] describes the current demand of wireless communication system is to achieve highest capacity with lowest requirement of bandwidth and improved error rate. The mobile WiMAX is the wonderful invention which is fulfilling the latest demand. This research paper presents the theoretical aspect of the mobile WiMAX system whose remarkable features are scalable OFDM and Advanced antenna techniques such as MIMO. Each and every parameter which are required to build and to model the WiMAX system such as channel coding, sampling frequency, sampling period, symbol duration of OFDM, modulation scheme, etc. have been discussed in this paper which are the useful matters to develop a simulation model of this research work.

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Broadband/the WiMAX system - Essay UK Free Essay Database

In this work, we describe the implementation of ParkNet system, a WiMAX-based vehicular application in Brooklyn area, New York City. Also, we analyze and evaluate the physical performance of mobile WiMAX in the metropolitan environment using a large amount of measurements collected over the course of extensive experimentation using a real world WiMAX deployment and multiple cars. Through the analysis of the terrain characteristics in Brooklyn, we find that the sensing vehicles in ParkNet system predominantly observe Non Line of Sight (NLOS) propagation conditions, due to the dense tall building constructions between the base station and client receivers. In addition, the low speed limit and congested traffic conditions in the experimental area reduce vehicular mobility; the speed never exceeds 14 meter/second; and the mean speed is constrained to 1.67 meter/second. From the downlink RSSI measurements we collected, the range of which varies from -40 dBm to -98 dBm, we observed that WiMAX coverage extends up to 590 meters under this terrain environment, which is smaller than kilometer-scale propagation distance observed in other propagation environments. We also derived the analytical path loss model describing the WiMAX signal propagation in the metropolitan environment. As the analysis in Chapter 5 shows, the derived empirical NLOS Path Loss Model of metropolitan mobile WiMAX is described by a complementary error CDF that has a normal distribution ~ N(0,57.1). The path loss exponent is obtained to be 3.008.

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WiMax Worldwide Interoperability for Microwave Access

In this side, some antenna examples have been given which are work in such bands Examples of Microstrip Antennas for Wimax Technology There are many types and shapes of microstrip antennas, which were designed to work in Wimax band such as c-slot, E-shape and others. Because of diverse shapes, just two examples will be presented here L-slot Rectangular Microstrip Patch Antenna for WiMAX and WLAN Applications The designed antenna is shown in Figure The dimension of the antenna were mm in length (L) and mm in width (W), the thickness (h) is 1.5 mm. The substrate was RT Duroid 5880 having dielectric constant of 2.4, the patch was cut into slot with widths, 3.5 mm for w1, w2 is 3 mm, and w3 is 1 mm for the L-shape [3]. Figure 2.12 Geometry of the first example Proposed Antenna Here is a designed antenna result:.. Figure 2.13 Return Loss versus Frequency 18

PROTOCOLS IN WIMAX A THESIS Presented to the Department of Computer Engineering and Computer Science California State University, Long Beach In Partial Fulfillment

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In this side, some antenna examples have been given which are work in such bands Examples of Microstrip Antennas for Wimax Technology There are many types and shapes of microstrip antennas, which were designed to work in Wimax band such as c-slot, E-shape and others. Because of diverse shapes, just two examples will be presented here L-slot Rectangular Microstrip Patch Antenna for WiMAX and WLAN Applications The designed antenna is shown in Figure The dimension of the antenna were mm in length (L) and mm in width (W), the thickness (h) is 1.5 mm. The substrate was RT Duroid 5880 having dielectric constant of 2.4, the patch was cut into slot with widths, 3.5 mm for w1, w2 is 3 mm, and w3 is 1 mm for the L-shape [3]. Figure 2.12 Geometry of the first example Proposed Antenna Here is a designed antenna result:.. Figure 2.13 Return Loss versus Frequency 18