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While emerging ultra-wideband wireless technology is widely expected to play an important role in consumer products, its significance to industrial users may be even greater. UWBs role as an enabling technology for high speed data links that can operate in noisy environments, low power wireless sensor and building automation networks, and ground penetrating radar and though wall imaging will almost...
Canada introduced its domestic UWB rules in March 2009. Issue-1 of Radio Standards Specifications RSS-220 established provisions for the introduction and use of short-range UWB devices on a licence-exempt no-interference no-protection basis. This speech presents the Canadian UWB rules, and outlines similarities and differences with those of other countries (e.g.; US, Europe) and ITU-R recommendations.
The availability of positional information is of great importance in numerous commercial, health-care, public safety, and military applications. The coming years will see the emergence of high-definition location-aware (HDLA) networks with sub-meter accuracy, minimal infrastructure, and robustness in harsh environments. We propose to realize this ambitious goal using cooperative peer-to-peer algorithms...
In this paper, we first analyze the spatial reuse gain and interference in a dense 60 GHz wireless networking environment (e.g. an office cubicle environment). The simulation results show that a significant spatial reuse gain can be achieved in such an environment. We also show it is easy to find a scenario where two neighboring links interfere with each other in a dense office environment. A number...
Providing high data rates to wireless users has long been a goal that has driven the development of new technologies and standards in the past decade. Now, with the opening up of the spectrum at 60GHz, it has become possible to design WLANs that can meet the goal of Gbps/user connectivity. This paper examines several unique design challenges brought about because of the physical characteristics of...
From a theoretical point of view, the multiple input multiple output (MIMO) approach seems to be one of the best solutions to characterize the communication channel in the 60GHz frequency range. This paper describes the design of a high-gain antenna array with beamforming capabilities working in the millimeter-wave region suitable for such channel measurements. The array consists on 8 horn antennas,...
The past few years have witnessed the emergence of CMOS based circuits operating at millimeter wave-frequencies. In combination with a co-designed high volume manufacturing packaging, this represents a unique opportunity to develop low power 60GHz multi-gigabit radio at similar cost structure than a Bluetooth® radio, addressing the needs of a multitude of bandwidth hungry wireless multimedia applications...
The economies of scale in modern communication systems are enabled by architectures that take advantage of Moore's law to implement most transceiver functionalities in digital signal processing (DSP). The bottleneck in scaling such “mostly digital” architectures to multi-Gigabit rates becomes the analog-to-digital converter (ADC): high-speed, high-precision ADCs are either not available, or are too...
The physical layer design for the Type A devices defined in the Ecma-387 standard for the 60GHz wireless personal area networks is described and discussed. The performance of the physical layer is simulated and presented in terms of error rate versus signal to noise ratio, as well as operating range versus data rate. The results show that the performance of the physical layer supports the envisioned...
Phase-Only Correlator (POC) provides a way to detect signal arrival times with high resolution using non-chirp UWB pulse waveforms. However, when used with many existing UWB pulse shapes, POC requires a noise suppression filter to suppress the internal amplified noise components. The noise suppression filter in turn introduces undesirable sidelobes and widens the correlation peaks. We address this...
We present a programmable ultra-wideband (UWB) pulse generator designed and simulated in 90nm CMOS technology. The design receives an input square pulse and uses a pulse-combinatorial method to generate an output pulse composed of six individual impulses, each independently adjustable in both amplitude and delay. Additionally, the final pulse width can be adjusted. The design uses a 1.2V supply and...
This paper explores a general synthesis technique previously developed by the authors for designing microwave devices with fully customized temporal/spectral responses and its communications. The theoretical foundations of the exact analytical series solution for the synthesis technique enables the passivity and stability. A simple and efficient implementation of the synthesis algorithm is also presented...
This paper deals with waveform optimization problems raised from advanced radio system prototyping conducted recently. Motivated by increasing demands for wireless sensor networks, simple receivers paired with sophisticated transmitters are considered. From a few receiver candidates, the energy detector (or square law) receiver is selected in this paper. The receiver includes a square law device followed...
Future wireless communication systems make high requirements on the ultra wide bandwidth as well as on the super high data rates. In this paper, we proposed a powerful 0.22 THz sinusoidal signal generator, which could be used as the power sources of carrier frequencies or local oscillators in heterodyne systems. The physical mechanism of THz wave generation was related to the Cherenkov radiation,...
A new transversal filter structure is proposed which is tolerant to length deviations of the installed 50-Ω delay transmission lines. An application is given for the generation of Gaussian monocycles and Gaussian doublets. Calculated and measured results for Gbit/s signal processing are compared.
Over the last few years there has been an emerging interest in ultrawideband (UWB) communications in wireless sensor networks, mainly due to their low-complexity and low-power consumption. In particular, auto-correlation receiver (AcR) is a potential candidate for such applications. However, the presence of network interference, especially interference between uncoordinated UWB networks, will severely...
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