Results 71 to 80 of about 5,536 (185)
A Communication Monitor for Wireless Sensor Networks Based on Software Defined Radio [PDF]
, 2011 Link quality estimation of reliability-crucial wireless sensor networks (WSNs) is often limited by the observability and testability of single-chip radio transceivers.
He, Zhitao, Qin, Yian
core
Electronics Letters, Volume 61, Issue 1, January/December 2025.The design and experimental validation of an ultra‐wideband 256‐element active phased array operating across the 3–15 GHz frequency range is proposed in this letter. These findings highlight the potential of the array for multifunctional sensor applications on resource‐constrained platforms such as spaceborne and airborne systems, with stringent size ...
Daqun Yu +3 more
wiley +1 more source
, 2011 National audienceIn this paper, we present a study of the influence of semiconductor optical amplifiers (SOAs) on an optical transmission system CO-OFDM. This study is conducted by simulation over a wide optical bandwidth.
Guegan, Mikael +4 more
core +1 more source
A 24-GHz SiGe Phased-Array Receiver—LO Phase-Shifting Approach [PDF]
, 2005 A local-oscillator phase-shifting approach is introduced to implement a fully integrated 24-GHz phased-array receiver using an SiGe technology. Sixteen phases of the local oscillator are generated in one oscillator core, resulting in a raw beam-forming ...
Guan, Xiang +3 more
core +1 more source
Analysis and Elimination of Self‐Induced Effect in SINR Estimation
Electronics Letters, Volume 61, Issue 1, January/December 2025.In this paper, we identify a phenomenon known as the self‐induced effect, where a high signal‐to‐interference‐plus‐noise ratio may be estimated even when no signal is actually reaching the receiver. This effect prevents accurate beam quality assessment and limits the effective utilisation of reconfigurable intelligent surface for channel reconstruction.
Hao Wu +3 more
wiley +1 more source
On the Optimization of Iterative Clipping and Filtering for PAPR Reduction in OFDM Systems
IEEE Access, 2017 Orthogonal frequency division multiplexing (OFDM) offers spectral efficiency advantage, however, it is limited by peak-to-average power (PAPR) problem. The PAPR can be reduced using iterative clipping and filtering (ICF) scheme but requires that the same
Kelvin Anoh +2 more
doaj +1 more source
On Spectral Coexistence of CP-OFDM and FB-MC Waveforms in 5G Networks
, 2017 Future 5G networks will serve a variety of applications that will coexist on the same spectral band and geographical area, in an uncoordinated and asynchronous manner.
Bader, Faouzi +2 more
core +2 more sources
A Reconfigurable 26‐GHz 128‐Element Transceiver Featuring Broad Gain Control for ISAC Applications
Electronics Letters, Volume 61, Issue 1, January/December 2025.ABSTRACT This letter presents a 128‐element millimetre‐wave integrated sensing and communication (ISAC) system. The proposed system integrates the radio frequency (RF) front‐end, RF‐to‐intermediate frequency (IF) converters, IF, and local oscillator (LO) modules into a compact chassis. Multi‐stage gain enables a total transmit gain of up to 62 dB and a
Li Qian +4 more
wiley +1 more source
Applying EVM to Satellite on Ground and In-Orbit Testing - Better Data in Less Time [PDF]
Using Error Vector Magnitude (EVM) in satellite integration and test allows rapid verification of the Bit Error Rate (BER) performance of a satellite link and is particularly well suited to measurement of low bit rate satellite links where it can result ...
Lebbink, Elizabeth-Klein +5 more
core +1 more source
Carrier Aggregated Radio-Over-Fiber Downlink for Achieving 2Gbps for 5G Applications
IEEE Access, 2019 We demonstrate experimentally, for the first time, a distributed digital predistortion model for radio-over-fiber (RoF) downlink suitable for broadband 5G signals.
Mahmood Noweir +3 more
doaj +1 more source