MC-CDMA performance evaluation over a multipath fading channel using the characteristic function method

Smida, Besma; Despins, Charles; Delisle, G.Y.

doi:10.1109/26.939842

Cited by 20 publications

(14 citation statements)

References 5 publications

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“…The authors Karagiannidis et al have completed the performance analysis of linear combining, EGC (equal gain combining) and MRC, over Weibull fading [20]. The results of performance evaluation of MC-CDMA system over a multipath fading channel using the CHF (characteristic function) method has been arrived at in [21] by the researches Smida et al Besides, in [22] the authors claimed that the results should not accuracy if the assumption of interdependence among the input diversity channel without sufficient separation between antennas. It means that multivariate Weibull distribution could be involved in the analysis for reception with multiple access techniques.…”

Section: Introductionmentioning

confidence: 98%

On the Impact of CFO for an MC-DS-CDMA System in Weibull Fading Environments

Chen

Kuo

2010

Wireless Pers Commun

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On the basis of CFO (carrier frequency offset) point of view, the system performance results from the analysis by adopting the channel scenarios characterized as Weibull fading for an MC-DS-CDMA (multi-carrier direct-sequence coded-division multipleaccess) system is proposed in this article. Moreover, an approximate simple expression with the criterion of BER (bit error rate) versus SNR (signal-to-noise ratio) method is derived for an MC-DS-CDMA system combining with RAKE receiver, which is a special case of MRC (maximal ratio combining) diversity, based on the MGF (moment generating function) formula of Weibull statistics, and it associates with an alternative expression of Gaussian Q-function. In addition, the other point of view on the BER performance evaluation of an MC-DS-CDMA system is not only the assumption of both single-user and multi-user cases applied, but the phenomena of PBI (partial band interference) is also included. Furthermore, with several of the system parameters, such as CFO values, ε, Weibull fading parameter, β, user number, K , spreading chip number, N , branch number, L, and the PBI values, JSR, etc., are compared with each other in the numerical results in order to validate the accuracy in the derived formulas. To the best of author's knowledge, it is a brain fresh idea proposed in this paper to evaluate the system performance for an MC-DS-CDMA system on the point of the CFO view over Weibull fading.Keywords CFO (carrier frequency offset) · MC-DS-CDMA system · MGF (moment generating function) · MRC (maximal ratio combining) · PBI (partial band interference) · Weibull fading

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Section: Introductionmentioning

confidence: 98%

On the Impact of CFO for an MC-DS-CDMA System in Weibull Fading Environments

Chen

Kuo

2010

Wireless Pers Commun

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“…A saddle point integration-based MGF oriented approach was proposed for computing the error probability of DS-CDMA systems communicating over both Rician [9] and Nakagami-fading [10] channels. This approach has been applied for studying the performance of MC-DS-CDMA systems using deterministic spreading sequences [11].…”

Section: Introductionmentioning

confidence: 99%

“…Our analysis is based on the CF, and does not rely on any simplifying assumptions concerning the statistical behavior of the interference. A new closed-form expression, rather than an integral [11] is derived for the conditional CF of the intercarrier interference (ICI).…”

Section: Introductionmentioning

confidence: 99%

Exact BER Performance of Asynchronous MC-DS-CDMA over Nakagami-m Fading Channels

Smida

Hanzo

Affes

2008

2008 IEEE Wireless Communications and Networking Conference

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Abstract-In this contribution an accurate average bit error rate (BER) formula is derived for Nakagami-faded MC-DS-CDMA in the context of asynchronous transmissions and random spreading sequences. Our analysis is based on the Characteristic Function (CF) and does not rely on any assumption concerning the statistical behavior of the interference. We develop a new closed-form expression for the conditional CF of the inter-carrier interference and provide a procedure for calculating the exact BER expressed in the form of a single numerical integration. The accuracy of the standard Gaussian approximation (SGA) technique is also evaluated. Link-level results confirm the accuracy of the SGA for most practical conditions.

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“…A saddle point integration-based MGF approach was proposed to compute the error probabilities of DS-CDMA systems over Rician [8] and Nakagami-fading [9] channels. This approach has been applied to study the performance of MC-DS-CDMA systems with deterministic spread sequences [10]. However, to the author's best knowledge, the accurate BER analysis of asynchronous Rayleigh-faded MC-DS-CDMA using random sequences is still an open problem.…”

Section: Introductionmentioning

confidence: 99%

“…The analysis is based on the CF, and does not resort to any assumption on the statistical behavior of the interference. A new closed-form expression, rather than an integral [10], is derived for the conditional characteristic function of the inter-carrier interference.…”

Section: Introductionmentioning

confidence: 99%

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

Smida

Hanzo

Affes

Lecture Notes Electrical Engineering

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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.

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MC-CDMA performance evaluation over a multipath fading channel using the characteristic function method

Cited by 20 publications

References 5 publications

On the Impact of CFO for an MC-DS-CDMA System in Weibull Fading Environments

On the Impact of CFO for an MC-DS-CDMA System in Weibull Fading Environments

Exact BER Performance of Asynchronous MC-DS-CDMA over Nakagami-m Fading Channels

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

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