Wireless systems
High Efficiency Transmission Techniques for Broadband Wireless Systems
... Due to high transmission rates, the multi-path propagation can lead to severe time- dispersion effects. For this reason, block transmission techniques combined with FDE techniques such as OFDM [Cim85] and SC-FDE ...
146
Letter Wireless Systems New quasi-orthogonal BCH-derived sequences for CDMA applications
... these systems, each user is identified by a specific pseudo-noise (PN) code ...these systems can degrade significantly when the number of active users increases, due to the increase in the level of ...
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Distribution of the Residual Self-Interference Power in In-Band Full-Duplex Wireless Systems
... Current wireless communication systems, including but not limited to cellular and local area networks, are half-duplex communication systems, meaning that the available re- sources are divided either ...
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Mobility management for multiuser sessions in next generation wireless systems art mobility
... An interface with mobility controllers allows MUSC to provide QoS and connectivity support also for ongo- ing sessions. The interaction between MUSC and MIP- alike controllers, such as MIPv4, MIPv6 and FMIP, aims to ...
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Intentional control of invasive mobile wireless systems
... Satellite Systems (GNSS) such as GPS or Galileo to calculate their position and navigation paths [2], ...These systems are widely used and, in the case of GPS, are the standard in situations where ...
125
Multiuser Detection for the Uplink of Prefix-Assisted DS-CDMA Systems Employing Multiple Transmit and Receive Antennas
... broadband wireless systems should com- bine spatial multiplexing techniques employing multiple transmit and receive antennas with transmission schemes suitable to severely time-dispersive channels such as ...
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Code Division Multiplexing Using AI Based Custom Constellation Scheme - Efficient Modulation for High Data rate Transmission
... Proposed scheme uses custom constellation ordering of QAM modulator as code . It uses 8 QAM , the same carrier frequency within same frequency band can be used for four wireless systems. In the proposed ...
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High Performance Faster-than-Nyquist Signaling
... a wireless broadband context, multi-path dispersive channels can severely affect data communication of Mobile Terminals (MTs) ...broadband wireless systems. However, current systems rely on ...
142
A Constraint Programming Approach to Optimize Network Calls by Minimizing Variance in Data Availability Times
... 5G wireless communication systems are expected to share some common features like having a large number of transmit and receive antennas also called massive multiple input mul- tiple output (MIMO) [8]–[11] ...
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Design of a 11-Band 3-10GHz Frequency Synthesizer for Multi-Band OFDM UWB Transceiver in 90nm CMOS Technology
... UWB systems for short-range and high-data rate wireless communications has increased ...802.11a/b/g wireless systems, which use frequency bands around ...
5
eve cccavalcante on adaptive
... communications systems have experienced a great development in the last few ...of wireless systems. A key aspect on the success of the systems is the ability to handle with many different ...
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Single Carrier Modulation With Nonlinear Frequency Domain Equalization: An Idea Whose Time Has Come—Again
... broadband wireless systems, again with OFDMA used in the downlink [24], ...802.16 Wireless metropolitan area network standards group has recently been formed to contribute to ...WiMAX wireless ...
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PERFORMANCE ANALYSIS AND SPECIAL ISSUES OF WIRELESS BROADBAND SYSTEMS IN THE INFORMATION AND COMMUNICATION ENVIRONMENT
... The frequency band determines the type of receiving antenna and the coverage, or range, of the transmitter. MMDS, instructional television fixed service (ITFS) and multipoint distribution service (MDS) analog television ...
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Performance Evaluation and Traffic Modeling
... Frequency bands allocated for the WiMAX system are within the 2.5-GHz, 3.5-GHz, and 5.8-GHz spectrum with a maximum effective isotropic radiated power (EIRP) around 30 dBm. A maximum allowed guard time ratio of one ...
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A New Smith Predictor and Fuzzy RBF Neural Network Control for Wireless Networked Control Systems
... for systems with constant time delays [12], but variable time delays can be much more difficult to compensate ...control systems (NCS) on random delay ...control systems implemented over industrial ...
6
Towards 5G: performance evaluation of 60 GHz UWB OFDM communications under both channel and RF impairments
... Task Group 3c [2], is earmarked as the Wireless Personal Area Network (WPAN) standard for the band 57-66 GHz in Europe [3], with expected data rate targets ranging between 2 and 5 Gb/s. This standard details the ...
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Detecção multiusuário baseada em tensores para sistemas de comunicação sem fio cooperativos
... The wireless links have frequency-flat Rayleigh fading with path loss expoent equal to 3, the base station antenna array is composed by K antennas, 16-QAM modulation is used and Hadamard codes are considered for ...
115
Interference alignment in wireless communication systems: precoding design, scheduling and channel imperfections
... of the two-user Gaussian interference channel (with single antennas) was considered an open problem for 30 years until 2008 when Tse et al. [4] derived the capacity for such systems. Unfortunately, the ...
91
New Broadband Wireless Technologies - WiMax
... Securitate mare - WiMAX suportă stan- dardele AES (Advanced Encryption Stan- dard) şi 3DES (Triple DES - Data Encryption Standard). Prin criptarea leg ăturilor dintre sta ţia de bază şi staţiile abonat, WiMAX asi- gur ...
4
The benefits of soft sensor and multi-rate control for the implementation of wireless networked control systems
... For control and energy saving in WNCS, one solution that is gaining attention is the aperiodic control theory, which does not require the periodic transmission of measurements and computation of control inputs [15]. It ...
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