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Recently, several MIMO transmission method is investigated for increasing the capacity or spectral efficiency. To well utilize the MIMO transmission approach, channel state information is required in transmission side. So, channel sounding in receiver side also becomes important for feedback the low-error channel state information to the transmitter. Thus, we investigate the detail procedure and performance...
Named Data Networking (NDN), aka Content Centric Networking (CCN), excels in content distribution especially multimedia distribution, which can consume significant network bandwidth. With the market penetration of mobile devices and advancement of wireless technologies, media streaming over Wi-Fi becomes increasingly popular but it does not scale well in today's IP based networking. A natural question...
This paper presents a compact dual wideband asymmetric cross patch antenna fed by cross strip line for WLAN and WiMAX applications over the frequency band of (WLAN: 2.4–2.484 GHz, 5.15–5.35 GHz and 5.725–5.825 GHz) and (WiMAX: 2.5–2.69, 3.3–3.7, and 5.25–5.85 GHz). The antenna designed on an FR4 substrate with a thickness of 1.6 mm and the relative permittivity of 4.4, is fed by a 50Ω transmission...
This paper gives the prototype of a microstrip antenna with an inset feed, at two different frequencies of 2.2 GHz and 5.2 GHz. The bandwidth of these antennas has been enhanced, by introducing slots in it; and has been made suitable for WLAN applications. On successful simulation of the antennas, the values of directivity and gain were observed. Gain and Directivity for the antennas operating at...
A triple-frequency patch antenna with coplanar waveguide (CPW)-fed structure is presented in this paper for simultaneously satisfying wireless local area network (WLAN) and worldwide interoperability for microwave access (WiMAX) applications. The proposed antenna mainly consists by three radiating elements: Stub1, Stub2 and Stub3 with a defected ground plane for band broadening. By adjusting the lengths...
Information Technology has become the catalyst for growth at Lampung University, there were over 25,000 students, 1,300 lecturer, and 645 academic staff should be provided with adequate network capacity in order for enhancing learning, research activity, and other academic use. IT units already developed wireless infrastructure using Aruba Technology since March 2014 to served them. 100 units Aruba...
The performance and the quality of 3D video streaming over WLAN networks is influenced by different parameters such as network transmission and the encoding of the 3D video stream. In this paper, we analyze a proposed live 3D video streaming system that transmits a 3D live video through a wireless LAN network (WLAN). The live 3D video is captured from the Kinect RGB-D sensor, then a 3D point cloud...
Hexagon shaped UWB Coplanar antenna using SRR is constructed on an FR4 substrate with a dimension of 26 × 32 × 1.6mm having a dielectric constant εr = 4.4 and thickness (h) 1.6mm. SRR is used in this antenna to obtain negative permeability in order to improve the gain, directivity and return loss. Two circular slots are made in the patch, in order to reject the WiMAX/WLAN bands. The designed and fabricated...
We presents a novel printed monopole antenna for ultra-wideband application with dual band-notch characteristics. The proposed antenna consists of a small square radiating patch with Π-shaped and W-shaped slots cut inside the square radiating patch and a ground plane with a pair of C-shaped slots, which provide a broad fractional bandwidth of more than 119% (3.0–11.8GHz). To realize band-notch performance...
Millimeter-waves radio technology is attracting great interest because large portions of radio spectrum are available from about 30 to beyond 90 GHz to support modern bandwidth- hungry applications with QoS requirements. Fifth generation of mobile communications is mainly envisaged in the spectrum around 28-40 GHz, whereas 60 GHz band is mostly used for indoor wireless local area networks (WLANs)...
The paper presents an ultra wide band filter using asymmetrical interdigital coupled line with a transmission notch at the WLAN band. The lower side transmission zero can be conveniently tuned by stepped impedance resonators of proper dimensions. The frequency notch for WLAN band is introduced by two half wavelength open ring resonators etched on the ground plane. The attenuation in lower and upper...
In this paper, the conception of a multiband antenna dedicated to the UMTS/PCS/WLAN/BLUETOOTH/LTE standards, is presented. A design methodology in order to obtain an efficient antenna is also proposed in this work. The antenna is composed of five elements: a main radiating element and four parasitic elements. The parasitic element technique is the single method used here to enhance the antenna's bandwidth...
Next Generation Wireless Networks (NGWNs) are expected to be heterogeneous, which integrate different Radio Access Technologies (RATs) such as 3GPP's Long Term Evolution (LTE) and Wireless Local Area Networks (WLANs) where a transmission is supported if the signal-to-interference-plus-noise ratio (SINR) at the receiver is greater than some threshold. In this paper, we analyze the interference in heterogeneous...
A double-folded inverted-L antenna with directional radiation for indoor access points applications is presented. The antenna comprises a microstrip fed double-folded inverted-L radiator and a centrally slotted ground. The radiator is a printed inverted-L antenna whose arm is extended and folded. A directional radiation is obtained by mounting the radiator above the ground. A vertical slot is etched...
A miniaturized dual-band antenna is proposed and investigated by combining spiral and meander lines for wireless local area network (WLAN) applications. The proposed antenna consists of a meander line and a spiral line, which are used to generate the bands of 2.37–2.58GHz and 5.11–5.96GHz. The proposed antenna fed by a 50-Ohm mini-coaxial line has a small size of 12.5×7.5 mm2. The experimental results...
In this paper, a compact UWB antenna with quintuple notch bands is proposed to suppress the potential interferences in ultra-wide band systems. By introducing a complementary split ring resonator (CSRR), two U-shaped slots, a pair of C-shaped band rejection filters, and a U-shaped band rejection filter, five notches are achieved in WiMAX (3.14–3.61 GHz), C-band downlink (3.74–4.31 GHz), WLAN (5.2–5...
A novel and compact planar monopole ultra wideband (UWB) antenna with dual band-notched characteristics is presented. To achieve an UWB, four circled concave profiles are employed into a U-shaped radiation patch corners with several modifications in antenna ground plane. The antenna is also modified to create two notches for WLAN and WiMAX. The antenna bandwidth covering the range 2.85 to 50 GHz with...
A dual-band omni-directional monopole/dielectric resonator antenna fed by the substrate integrated coaxial line (SICL) is designed for 2.4/5 GHz WiFi application. Simulated results show that the fractional bandwidths are 10% and 50%, and the antenna gains are 1.8 dBi and 2.3 dBi at 2.4 GHz and 5 GHz bands, respectively.
A multi-band hybrid PIFA/loop antenna is proposed for the application of mobile communications terminals. The antenna is an internal antenna and very compact in comparison with conventional mobile antennas. It has been demonstrated that the proposed antenna can cover all the commonly required WLAN frequency bands, including 2.4 GHz (2.4–2.484 GHz), 5.2 GHz (5.15–5.35 GHz), and 5.8 GHz (5.725–5.825...
In this paper, a compact printed dual-band dual-port multiple-input multiple-output (MIMO) antenna operating in the 2.4-GHz (2.4–2.5 GHz) band of the IEEE802.11b/g standard and in the 5-GHz (4.9–5.1 GHz, 5.15–5.35 GHz, 5.47–5.725 GHz)band of the IEEE 802.11a with dual band decoupling elements is presented. Each dual-band antenna consists of a one quarter wavelength monopole slot and one half wavelength...
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