A distributed multichannel MAC protocol for multihop cognitive radio networks

M Timmers, S Pollin, A Dejonghe… - IEEE Transactions …, 2009 - ieeexplore.ieee.org
A cognitive radio (CR) network should be able to sense its environment and adapt
communication to utilize the unused licensed spectrum without interfering with licensed …

A 2-mm 0.1–5 GHz Software-Defined Radio Receiver in 45-nm Digital CMOS

V Giannini, P Nuzzo, C Soens… - IEEE Journal of Solid …, 2009 - ieeexplore.ieee.org
A software-defined radio (SDR) should theoretically receive any modulated frequency
channel in the (un) licensed spectrum, and guarantee top performance with energy savings …

A software-defined radio receiver architecture robust to out-of-band interference

Z Ru, EAM Klumperink, GJM Wienk… - 2009 IEEE International …, 2009 - ieeexplore.ieee.org
In a software-defined radio (SDR) receiver it is desirable to minimize RF band-filtering for
flexibility, size and cost reasons, but this leads to increased out-of-band interference (OBI) …

Adaptive CMOS analog circuits for 4G mobile terminals—Review and state-of-the-art survey

JM de la Rosa, R Castro-López, A Morgado… - Microelectronics …, 2009 - Elsevier
The fourth-generation (4G) of cellular terminals will integrate the services provided by
previous generations second-generation/third-generation (2G/3G) with other applications …

A widely-tunable, reconfigurable CMOS analog baseband IC for software-defined radio

M Kitsunezuka, S Hori, T Maeda - IEEE journal of solid-state …, 2009 - ieeexplore.ieee.org
This paper describes a reconfigurable analog baseband (ABB) for a software-defined radio
(SDR). A wide variety of filter characteristics needed for SDR can be obtained by a …

A 2mm2 0.1-to-5GHz SDR receiver in 45nm digital CMOS

V Giannini, P Nuzzo, C Soens… - … Solid-State Circuits …, 2009 - ieeexplore.ieee.org
The requirements of next-generation wireless terminals are driving RFIC design toward
ubiquitous multistandard connectivity at reduced power consumption and cost. While the …

A 0.1–5GHz Dual-VCO software-defined∑ Δ frequency synthesizer in 45nm digital CMOS

P Nuzzo, K Vengattaramane, M Ingels… - 2009 IEEE Radio …, 2009 - ieeexplore.ieee.org
A wide-band frequency synthesizer architecture for software defined radio applications is
presented, based on a dual-VCO SigmaDelta phase locked loop (PLL), with a wide-range …

Calibration of direct-conversion transceivers

BÖ Debaillie, P Van Wesemael… - IEEE Journal of …, 2009 - ieeexplore.ieee.org
Due to its architectural simplicity, the direct conversion scheme is attractive for low-cost, low-
complexity and/or reconfigurable transceiver design. Unfortunately, this scheme comes with …

Reconfigurable multi-mode sigma–delta modulator for 4G mobile terminals

A Silva, J Guilherme, N Horta - Integration, 2009 - Elsevier
A reconfigurable sigma–delta modulator, which is able to support the predictable standards
for the fourth generation (4G) of mobile communication systems, is presented in this paper …

Non-decimation FIR filter for digital RF sampling receiver with wideband operation capability

C Park, J Yoon, B Kim - 2009 IEEE Radio Frequency Integrated …, 2009 - ieeexplore.ieee.org
In order to realize a discrete-time filter for wideband signal processing, a new finite impulse
response filter (FIR) has been developed. The filter maintains the moving average effect, but …