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Efficient symbol error rate analysis of cooperative non-regenerative relay systems over generalized fading channels

ISSN : 0975-3834
Journal from gdlhub / 2017-08-14 11:52:34
Oleh : Oluwatobi Olabiyi1 and Annamalai Annamalai2, International Journal of Wireless & Mobile Networks (IJWMN)
Dibuat : 2012-07-02, dengan 1 file

Keyword : Asymptotic analysis, cooperative diversity systems, MGF method, amplify-and-forward relay networks
Subjek : Efficient symbol error rate analysis of cooperative non-regenerative relay systems over generalized fading channels
Url : http://airccse.org/journal/jwmn/0212wmn01.pdf
Sumber pengambilan dokumen : Internet

In this article, we develop a unified approach to the asymptotic performance analysis of symbol error


rates for two-hop cooperative non-regenerative multi-relay networks over a myriad of stochastic channel


models. Our proposed moment generating function (MGF) based analytical framework is also sufficiently


general to encapsulate all types of coherent, differentially-coherent and non-coherent digital modulation


schemes. In addition to simplifying the computation complexity of average symbol error rate (ASER) for


cooperative amplify-and-forward (CAF) diversity systems treated in the literature, we also provide an


accurate approximation for the desired ASER in a number of fading environments that heretofore had


resisted a simple solution. The accuracy of our approximations has been validated with the closed-form


formulas that are available for specific fading environments (e.g., Rayleigh and Nakagami-m channels)


and via computer (Monte Carlo) simulations. Our analytical approach may also be extended to other


types of cooperative strategies and multi-hop networks, although it is beyond the scope of this article.

Deskripsi Alternatif :

In this article, we develop a unified approach to the asymptotic performance analysis of symbol error


rates for two-hop cooperative non-regenerative multi-relay networks over a myriad of stochastic channel


models. Our proposed moment generating function (MGF) based analytical framework is also sufficiently


general to encapsulate all types of coherent, differentially-coherent and non-coherent digital modulation


schemes. In addition to simplifying the computation complexity of average symbol error rate (ASER) for


cooperative amplify-and-forward (CAF) diversity systems treated in the literature, we also provide an


accurate approximation for the desired ASER in a number of fading environments that heretofore had


resisted a simple solution. The accuracy of our approximations has been validated with the closed-form


formulas that are available for specific fading environments (e.g., Rayleigh and Nakagami-m channels)


and via computer (Monte Carlo) simulations. Our analytical approach may also be extended to other


types of cooperative strategies and multi-hop networks, although it is beyond the scope of this article.

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