Performance of generalized multicarrier DS-CDMA over Nakagami-m fading channels

Yang, Lie‐Liang; Hanzo, Lajos

doi:10.1109/tcomm.2002.1010615

Cited by 192 publications

(7 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Parte-se, inicialmente, da caracterizac ¸ão de um sistema DS-CDMA, como em [7]. Os parâmetros dos sistemas CDMA multiportadora são então derivados respeitando a largura de banda de canal e a taxa de transmissão de dados do sistema DS-CDMA original.…”

Section: M  C ¸  S Cdma Munclassified

“…• Número de componentes multipercurso discerníveis: L DS . O número de percursos discerníveis em um sistema DS-CDMA é dado por [7], [8]:…”

Section: M  C ¸  S Cdma Munclassified

“…No sistema MC DS-CDMA Generalizado proposto em [7], o espac ¸amento de freqüência entre subportadoras adjacentes é dado por ∆ f = Λ N T s , Λ = inteiro positivo. Se Λ = 1, o sistema reduz-se ao MT-CDMA, ao passo que, se Λ = G MD , o sistema reduz-se ao MC DS-CDMA ortogonal.…”

Section: M  C ¸  S Cdma Munclassified

See 2 more Smart Citations

Comparação de Sistemas CDMA Multiportadora

Angélico,

Jeszensky,

Abrão

2005

Anais Do XXII Simpósio Brasileiro De Telecomunicações

View full text Add to dashboard Cite

Resumo-Este trabalho faz uma análise comparada de três sistemas CDMA multiportadora: MC-CDMA, MC DS-CDMA ortogonal e MT-CDMA. Os resultados apresentados são obtidos analiticamente a partir de desenvolvimentos encontrados na literatura e também via simulac ¸ão computacional Monte Carlo. Entre os esquemas analisados, o MC-CDMA apresentou o melhor desempenho em termos de probabilidade de erro de bit. Entretanto, tal conclusão se restringe às configurac ¸ões utilizadas e às simplificac ¸ões adotadas para a obtenc ¸ão das figuras de mérito dos sistemas.

show abstract

Section: M  C ¸  S Cdma Munclassified

“…• Número de componentes multipercurso discerníveis: L DS . O número de percursos discerníveis em um sistema DS-CDMA é dado por [7], [8]:…”

Section: M  C ¸  S Cdma Munclassified

See 1 more Smart Citation

Comparação de Sistemas CDMA Multiportadora

Angélico,

Jeszensky,

Abrão

2005

Anais Do XXII Simpósio Brasileiro De Telecomunicações

View full text Add to dashboard Cite

show abstract

“…In this paper we propose a tri-functional MIMO scheme that intrinsically amalgamates STS, V-BLAST and beamforming with generalised MC DS-CDMA [15]. The proposed system is referred to as Layered Steered Space-Time Spreading (LSSTS) aided generalised MC DS-CDMA.…”

Section: Introductionmentioning

confidence: 99%

Iteratively Detected Generalised MC DS-CDMA Using Layered Steeered Space-Time Spreading

El‐Hajjar

Alamri

Maunder

et al. 2009

2009 IEEE International Conference on Communications

Self Cite

View full text Add to dashboard Cite

We present a novel tri-functional Multiple-Input Multiple-Output (MIMO) scheme that intrinsically amalgamates Space-Time Spreading (STS), the Vertical Bell Labs Layered Space-Time (V-BLAST) scheme and beamforming with generalised MultiCarrier Direct Sequence Code Division Multiple Access (MC DS-CDMA). Further system performance improvements can be attained by employing channel coding, where the source bits are serial-to-parallel converted to two layers, each constituted by a serial concatenation of an outer code amalgamated with a unity-rate code for the sake of improving the convergence behaviour of the proposed system. Additionally, the convergence behaviour of the iteratively detected scheme is evaluated with the aid of Extrinsic Information Transfer (EXIT) charts. We also propose a novel Logarithmic Likelihood Ratio (LLR) postprocessing technique for improving the iteratively detected system's performance. Explicitly, after I=10 decoding iterations and employing an interleaver depth of Dint=160, 000 bits, the proposed system supporting K=4 users attains a BER below 10 −5 for E b /N0 values in excess of −2.8 dB.

show abstract

“…Using the derivations found in [3], the average BER P e in Rayleigh fading approximated by the SGA can be shown to be:…”

Section: Standard Gaussian Approximationmentioning

confidence: 99%

Accurate BER of MC-DS-CDMA over Rayleigh fading channels

Smida

Hanzo

Affes

Lecture Notes Electrical Engineering

View full text Add to dashboard Cite

In this paper, we derive an accurate average bit error rate (BER) of Rayleighfaded MC-DS-CDMA in the context of asynchronous transmission and random spreading sequences. The analysis is based on the characteristic function, and does not resort to any assumption on the statistical behavior of the interference. We develop a new closed-form expression for the conditional characteristic function of the inter-carrier interference and a single integration for the BER calculation. The accuracy of the standard Gaussian approximation (SGA) method is also evaluated.

show abstract

Performance of generalized multicarrier DS-CDMA over Nakagami-m fading channels

Cited by 192 publications

References 33 publications

Comparação de Sistemas CDMA Multiportadora

Comparação de Sistemas CDMA Multiportadora

Iteratively Detected Generalised MC DS-CDMA Using Layered Steeered Space-Time Spreading

Accurate BER of MC-DS-CDMA over Rayleigh fading channels

Contact Info

Product

Resources

About