Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 25 for “"Wireless broadband"”.
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Hybrid wireless broadband networks
… particularly in this thesis referring to wireless broadband networks. However, to provide end-to-end quality of service (QoS) in a hybrid system is a challenging task due to different protocol in each system. In this thesis, we aim to improve the overall performance of hybrid networks in a …
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Positioning of wireless broadband
Thesis (M.S.)--Massachusetts Institute of Technology, Sloan School of Management, 1996.
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The Middle Class Tax Relief And Job Creation Act Of 2012 And Its Impact On Television Broadcasting And Future Broadband Wireless Communications
… electromagnetic spectrum for utilization by wireless communications providers. This "new" wireless spectrum will allow wireless providers to increase their wireless broadband capabilities and feed the ever-growing demand by consumers for more wireless broadband capacity. This thesis addresses …
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Second-order Cyclostationary Feature Based Detection of WiMAX Signals in Pulsed Noise Environments
… the continued development and proliferation of wireless communications systems. Government directives indicate that certain frequency bands which once were reserved for radar-only applications must now support wireless broadband systems. The effect of co-site interference upon detection …
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Bit error rate estimation in WiMAX communications at vehicular speeds using Nakagami-m fading model
The wireless communication industry has experienced a rapid technological evolution from its basic first generation (1G) wireless systems to the latest fourth generation (4G) wireless broadband systems. Wireless broadband systems are becoming increasingly popular with consumers and the …
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Channel assignment strategies for throughput enhancement in high density wireless local area networks
The emergence of high density wireless local area network (WLAN) deployments in recent years is a testament to both the insatiable demands for wireless broadband services and the ubiquity of WLAN technology. The increased density of WLAN deployments brings with it the potential of increased …
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Modernisation and Innovation Management: Developing a Digital Society. An investigation into public sector modernisation and innovation management in its introduction of wireless technology.
… most city-wide or council-wide development of wireless broadband access networks currently end in failure or are unsustainable. It also suggests its links with wider problems of innovation management and the commercial failure of otherwise technically competent solutions It explores the …
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WiMAX spectrum virtualization and network federation
Spectrum management in wireless broadband networks as regards its cost and its efficient usage has posed a huge challenge for mobile network operators. Traditionally, network operators had exclusive rights to access the band of spectrum allocated to them, but with the high price of spectrum …
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Evaluation performance of OFDM system using the selected mapping technique for WIMAX technology
… (OFDM) is a promising technique used in the wireless broadband communication systems these days. It is a form of multicarrier modulation technique with high spectral efficiency, robustness to channel fading, immunity to impulse interference, uniform average spectral density, capacity to …
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Cross-layer RaCM design for vertically integrated wireless networks
Wireless local and metropolitan area network (WLAN/WMAN) technologies, more specifically IEEE 802.11 (or wireless fidelity, WiFi) and IEEE 802.16 (or wireless interoperability for microwave access, WiMAX), are well-suited to enterprise networking since wireless offers the advantages of rapid …
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Use of GIS in Radio Frequency and Positioning Applications
… and geostatistical information, to plan wireless broadband systems using GIS. An Indoor Positioning Experiment is also conducted to see if apriori knowledge of a building size, location, shape, and number of floors can aid in the RF geolocation of a target indoors. The experiment shows …
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Design of mobile radio communication system at millimetre-waves and BER measurements for indoor environments
The demand for wireless broadband multimedia services, seeks exploitation of the widely available spectrum surrounding the 60 GHz operating frequency, which can support high speed indoor WLANs. The need to estimate the system performance in indoor mobile channels is necessary for future system …
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High speed internet access using cellular infrastructure
… as dial-up, xDSL, cable modems or optical fiber, wireless implementations are gaining market share based on technologies such as WiFi, WiMAX, MBWA, satellite and cell phone networks. This thesis examines the potential usage of providing Internet access through cellular infrastructure. The cellular …
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Evaluating barriers to and impacts of rural broadband access
"The lack of adequate broadband infrastructure persists in many rural communities. Beyond funding, additional barriers persist, such as digital literacy and community-level self-efficacy. As a result, the first contribution articulates barriers at the organizational level. This work proposes a …
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Security and Performance Issues in Spectrum Sharing between Disparate Wireless Networks
… order has prescribed the creation of Citizens Broadband Radio Service (CRBS) in the 3.5 GHz band to enable sharing between wireless broadband devices and incumbent radar systems. This sharing will be enabled by use of geolocation database with supporting infrastructure termed as Spectrum Access …
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An Examination of the Evolution of Broadband Technologies in the UK
… the most widely used technology to deliver broadband connectivity in the United Kingdom (UK). The research examines the outcome starting with events in 1960s when broadband as it is defined today did not exist. The research shows that a combination of factors involving regulatory decisions, …
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Quadrature amplitude modulated codes with low peak-to-mean envelope power ratio for orthogonal frequency division multiplexing applications
… technique for many of the next generation wireless broadband multimedia communications systems, for example, Digital Audio Broadcasting (DAB), terrestrial Digital Video Broadcasting (DVB), and the wireless local area network (LAN) standards HIPERLAN/2, and IEEE 802.11a. One problem inherent …
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Throughput and coverage improvement in wireless mesh networks
In a wireless mesh network, nodes known as transit access points (TAPs) cooperatively forward traffic from users that may be multiple wireless hops apart. A limited number of TAPs also have a connection directly to the Internet, serving as gateway nodes that provide Internet connectivity to the …
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Evaluation of Transport Layer Protocols for wireless multi-hop networks
Wireless Multi-hop Network (WMN) is a collection of wireless nodes that dynamically form a network without an infrastructure support. It is a promising technology for several interesting applications such as broadband home networking, community and neighborhood networks, coordinated management, …
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Resilient Waveform Design for OFDM-MIMO Communication Systems
… systems; the `de-facto' air-interface of most wireless broadband standards including LTE and WiMAX. The major contributions of this dissertation are: 1) developing jamming taxonomy, 2) proposing OFDM and MIMO equalization jamming attacks and countermeasures, 3) developing antijam (AJ) MIMO …
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