• Nenhum resultado encontrado

SC-FDE

Receptor no Domínio da Frequência para Modulações SC-FDE com STBC

Receptor no Domínio da Frequência para Modulações SC-FDE com STBC

... em SC-FDE permite colmatar esta limitação de potências, mantendo a capacidade de tirar partido das vantagens que advêm da utilização de igualação no domínio da ...em SC- FDE foi também ...

16

State-Space estimation for OFDM and SC-FDE Schemes with Strongly Varying Carrier Frequency Offset

State-Space estimation for OFDM and SC-FDE Schemes with Strongly Varying Carrier Frequency Offset

... the SC-FDE schemes presents significantly better results than that of ...the SC-FDE BER performance can achieve results near the Matched Filter Bound (MFB) (see the appendix for the ...

9

Receiver design for the uplink of base station cooperation systems employing SC-FDE modulations

Receiver design for the uplink of base station cooperation systems employing SC-FDE modulations

... In this paper, we consider the uplink of broadband wireless systems with BS cooperation architectures with the employment of SC-FDE modulation schemes. MTs in adjacent cells can share the same physical ...

15

Analytical BER Performance Evaluation in SISO and MIMO Environments with SC-FDE Modulations and IB-DFE Receivers

Analytical BER Performance Evaluation in SISO and MIMO Environments with SC-FDE Modulations and IB-DFE Receivers

... linear FDE equalizer is employed with SC-FDE ...nonliner FDE is the Iterative Block Decision Feedback Equalization (IB-DFE) [5,6], which is an iterative FDE implemented in the ...

25

MIMO SC-FDE Transmission Techniques with Channel Estimation and High-Order Modulations

MIMO SC-FDE Transmission Techniques with Channel Estimation and High-Order Modulations

... FFT block and S k,l pilot is the corresponding implicit pilot. In Figure 1, we show a transmitter chain that incorporates for the SC-FDE scheme. The pilot symbols are added in the frequency domain, and the ...

8

Analytical BER Performance Evaluation in SISO and MIMO Environments with SC-FDE Modulations and IB-DFE Receivers

Analytical BER Performance Evaluation in SISO and MIMO Environments with SC-FDE Modulations and IB-DFE Receivers

... for SC-FDE, which makes SC-FDE preferable for the uplink transmission while OFDM is interesting mainly for the downlink ...linear FDE equalizer is employed with SC-FDE ...

20

Optimization of a p-persistent Network Diversity Multiple Access Protocol for a SC-FDE System

Optimization of a p-persistent Network Diversity Multiple Access Protocol for a SC-FDE System

... This section evaluates the system throughput and delay for homogeneous Poisson traffic, on a wireless network with J MTs. Its main objective is to obtain an analytical model for the behavior of the MAC protocol on a ...

5

Analytical performance evaluation of massive MIMO techniques for SC-FDE modulations

Analytical performance evaluation of massive MIMO techniques for SC-FDE modulations

... 23. Casal Ribeiro, F.; Dinis, R.; Cercas, F.; Silva, A. On the performance of SC-FDE receivers for Base Station cooperation systems with rate-limited backhaul links. In Proceedings of 2013 9th International ...

12

Low complexity detection for SC-FDE massive MIMO systems

Low complexity detection for SC-FDE massive MIMO systems

... ploying FDE techniques, have been shown to be suitable for high data rate trans- mission over severely time-dispersive channels ...and SC modulation using FDE (or ...Ratio), SC-FDE ...

79

Implicit Pilots for an Efficient Channel Estimation in Simplified Massive MIMO Schemes with Precoding

Implicit Pilots for an Efficient Channel Estimation in Simplified Massive MIMO Schemes with Precoding

... that N >> 1). We considered 10000 independent channel realizations for obtaining the average error rates. A Rayleigh fading channel was considered with 16 uncorrelated equal power paths (it was assumed invariant ...

9

UNIVERSIDADE NOVA DE LISBOA Faculdade de Ciˆ encias e Tecnologia Departamento de Engenharia Electrot´ ecnica e de Computadores

UNIVERSIDADE NOVA DE LISBOA Faculdade de Ciˆ encias e Tecnologia Departamento de Engenharia Electrot´ ecnica e de Computadores

... employing FDE techniques, are suitable for high data rate transmission over severely time dispersive ...for SC-FDE schemes is a linear ...iterative FDE technique, for ...iterative FDE ...

131

Frequency-Domain Receiver Design for Transmission Through Multipath Channels with Strong Doppler Effects

Frequency-Domain Receiver Design for Transmission Through Multipath Channels with Strong Doppler Effects

... In broadband wireless systems the channel’s impulse response can be very long leading to very large blocks, with hundreds or even thousands of symbols. Under these conditions it can be difficult to ensure a stationary ...

16

Frequency-Domain Receivers for Rate-1 Space-Time Block Codes

Frequency-Domain Receivers for Rate-1 Space-Time Block Codes

... between SC-FDE and OFDM when channel coding is considered (it is well-know that uncoded performances are very poor for OFDM ...the SC-FDE STBC4. The pro- posed Turbo FDE receiver for ...

7

High Performance Faster-than-Nyquist Signaling

High Performance Faster-than-Nyquist Signaling

... of SC-FDE can be severely affected by a deep-fade and or poor channel conditions; to cope with such difficulties Diversity Combining (DC) Hybrid ARQ (H-ARQ) is a viable technique, since it combines the ...

142

A spectrally efficient transmission scheme for signals with large bandwidth

A spectrally efficient transmission scheme for signals with large bandwidth

... It is widely accepted that single-carrier with frequency- domain equalization (SC-FDE) schemes [1] are the best candi- dates for the uplink of broadband wireless systems since they can have excellent ...

5

Estudo de viabilidade de implantação de contorno viário entre as rodovias SC-453, SC-150 E BR-282 entre os Municípios de Luzerna e Joaçaba

Estudo de viabilidade de implantação de contorno viário entre as rodovias SC-453, SC-150 E BR-282 entre os Municípios de Luzerna e Joaçaba

... Os problemas relacionados ao trânsito nos municípios de Luzerna, Joaçaba e Herval d’Oeste vêm se agravando diariamente, em que além de veículos de passeio, existe a circulação de grande volume de veículos de carga e ...

14

IB-DFE receiver techniques for CP-assisted block transmission within DS-CDMA and MC-CDMA systems

IB-DFE receiver techniques for CP-assisted block transmission within DS-CDMA and MC-CDMA systems

... In this section we describe the CP-assisted DS-CDMA and MC-CDMA schemes to be considered, involving a multicode transmission with constant spreading factor (the extension to VSF schemes (Variable Spreading Factor) is ...

5

MODELO DE AQUISIÇÃO DO MPS.BR APLICADO A AQUISIÇÃO DE  SISTEMAS DE INFORMAÇÃO PARA GERENCIAMENTO DE PROJETOS NO  SETOR PÚBLICO

MODELO DE AQUISIÇÃO DO MPS.BR APLICADO A AQUISIÇÃO DE SISTEMAS DE INFORMAÇÃO PARA GERENCIAMENTO DE PROJETOS NO SETOR PÚBLICO

... Com o aumento da competição entre as empresas em geral e entre as empresas de software em particular, a necessidade de qualidade vem exigindo um maior acompanhamento no processo de aquisição de Software e Serviços ...

18

Hiperplasia adrenal macronodular independente de ACTH (AIMAH): aspectos clínicos e moleculares.

Hiperplasia adrenal macronodular independente de ACTH (AIMAH): aspectos clínicos e moleculares.

... uma SC causada por AIMAH, cujo quadro clínico apareceu claramente cerca de 10 anos após sua menopausa ...de SC, como hipertensão arterial, estrias violáceas ou hir- ...

17

: Brapci ::

: Brapci ::

... Promoção: Associação Catarinense de Bibliotecários, apoiadora pelo CRB14/SC, SindBiblio/SC, Grupo de Acadêmicos de Biblioteconomia (GAB) da UFSC/UDESC e Grupo de Bibliotecários[r] ...

8

Show all 1543 documents...

temas relacionados