Index Catalog // ScholarsArchive@OSU

Creator:: Ye, Ruiqing
Abstract:: Indoor localization systems have a variety of applications such as tracking of assets, indoor robot navigation, and monitoring of people (e.g. patients) in hospitals or at home. Global positioning system (GPS) offers location accuracy of several meters and is mainly used for outdoor location-based applications as its accuracy degrades significantly...
Resource Type:: Dissertation
Full Text:: . 2.2. 0 5 10 15 -75 -70 -65 -60 -55 -50 -45 -40 Fre que ncy (GHz) E IR P e m is si on

Creator:: Vemulapalli, Sudheer
Abstract:: fIndoor wireless local area networks (LAN's) and personal area networks (PAN’s) have evolved very rapidly in the recent past. The indoor wireless LAN's are mainly dominated by narrow-band technologies like the IEEE 802.11a,b which are short range and provide data rates of 1 Mbps to 54 Mbps. The Bluetooth has...
Resource Type:: Masters Thesis
Full Text:: 3.1 10.651.91.6 G P S P C S 802.11a HiperLan UWB Spectrum E m it te d S ig n al P ow er

Creator:: Redfield, Stephen J.
Abstract:: Recent developments in computing technology have generated a demand for more streamlined and effective test systems. By replacing traditional in-chassis wired interconnects with a broadcast wireless system, fault detection and error susceptibility will drastically improve, input/output capabilities will expand, and routing complexity will decrease. Ultra-wideband impulse radio's (UWB-IR) characteristic multipath-immunity...
Resource Type:: Masters Thesis
Full Text:: ) E IR P ( dB m / M H z) Part 15 Limit FCC Indoor UWB Mask Figure 1.1: FCC UWB spectral

Creator:: Zhao, Shiwei
Abstract:: Ultra-wideband (UWB) communication has emerged as a very promising technology for short-range wireless applications, including high-speed multimedia transmissions and sensor networks. UWB system designs involve many different aspects covering analog and digital processing, channel estimation and modeling, and modulation and demodulation. Although UWB still faces many challenges, significant progress has...
Resource Type:: Dissertation
Full Text:: ]. Because multipath components tend to arrive in clusters [19], τl in (5.2) is expressed as τl = µc + νm,c

Creator:: Venkatesan, Vinod
Abstract:: There has been tremendous technological advancement in the area of high-speed indoor wireless local area networks (WLAN's) in recent years. All the existing tech- nologies such as IEEE 802.11a,b are bandwidth limited and high powered systems. The challenge any wireless technology faces is to minimize both the power consumption and...
Resource Type:: Masters Thesis
Full Text:: . 2.4 3.1 10.651.91.6 G P S P C S 802.11a HiperLan UWB Spectrum E m it te d S ig n al P ow

Creator:: Harbert, Kyle
Abstract:: This paper proposes a novel means of using analog correlators to improve upon existing Ultra-Wideband receiver architectures. Current architectures aim for an all-digital design for the sake of ease of implementation and conceptual simplicity. This causes some notable design challenges including an ultra-high sampling rate, and difficulty capturing multipath energy....
Resource Type:: Masters Thesis
Full Text:: transmitted pulse. M- PAM uses M different signal levels in order to transmit log2(M) bits per pulse

Creator:: Baek, Seungjin
Abstract:: Pulsed ultra-wideband (UWB) radio uses extremely short pulses to transmit information. Such pulses provide very fine timing information, which has led to technological advances in high-precision localization. This thesis investigates UWB localization strategies with a focus on receiver synchronization algorithms for time-difference-of-arrival localization to achieve centimeter accuracies in a 3-dimensional...
Resource Type:: Masters Thesis
Full Text:: path-loss model is expressed as P̄ (d) = P0 − 10np log d d0 , (2.1) where P0 is the received power

ScholarsArchive@OSU