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Spectrum sensing is a key enabling functionality in cognitive radio (CR) networks, where the CRs act as secondary users that opportunistically access free frequency bands. Due to the effects of channel fading, individual CRs may not be able to reliably det ...
Since the beginning of the 20th century, the wireless frequency spectrum has been carefully controlled by government regulators. In response to the recent advances in radio technology, the spectrum regulators have opened some parts of the available spectru ...
This book focuses on optical communications for short and very short distance applications and discusses the monolithic integration of optical receivers with processing elements in standard CMOS technologies. CMOS Multi-Channel Single-Chip Receivers for Mu ...
Recently, sequential Monte Carlo methods have been used in the telecommunications field, finding application in receiver design. Several properties of these receivers make their designs very attractive. These receivers do not require channel state informat ...
Integrated circuit (1) comprising: an array of single photon avalanche diodes (SPADs), a plurality of read-out circuits, each SPADs being coupled to one read-out circuit, wherein at least some of the read-out circuits comprise time-to-digital converters (T ...
The paper describes an algorithm and a corresponding VLSI architecture for the implementation of linear MMSE detection in packet-based MIMO-OFDM communication systems. The advantages of the presented receiver architecture are low latency, high-throughput, ...
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Abstract—In this paper we give an overview of new requirements to the modeling and simulation of analog and mixed-signal systems. We give brief examples from two application domains and reveal limitations of established means for modeling and simulation. N ...
A new and compact photoacoustic sensor for trace gas detection in the 2-2.5 μm atmospheric window is reported. Both the development of antimonide-based DFB lasers with singlemode emission in this spectral range and a novel design of photoacoustic cell adap ...
Recently, there has been considerable discussion about new wireless technologies and standards able to achieve high data rates. Due to the recent advances of digital signal processing and Very Large Scale Integration (VLSI) technologies, the initial obstac ...
A design technique for implementing a low-voltage and low-power quadrature oscillator operating at radio frequencies is proposed. The oscillator utilises a cascade of four stages of capacitive-source amplifiers to generate balanced quadrature signals. The ...