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Exact Symbol Error Probability of Hybrid/Integrated Satellite-Terrestrial Cooperative Network

Abstract : In this paper, we study the Symbol Error Probability (SEP) performance of a hybrid/integrated satellite-terrestrial cooperative network. In particular, we focus on the case of mobile relays that forward the satellite signal to a masked mobile destination node. The Selective Decode-and-Forward (SDF) transmission scheme is implemented and only the relay nodes which can successfully decode the satellite message are selected to retransmit the signal. The destination node exploits the spatial diversity advantages by implementing a typical Maximum Ratio Combining (MRC) technique. The closed-form expressions for the exact average SEP of the arbitrary M-ary phase shift keying and M-ary quadrature amplitude modulation signaling with MRC diversity reception over independent but not necessarily identically distributed fading channels are derived using a Moment Generating Function (MGF) approach. These closed-form expressions are represented in terms of a finite sum of Lauricella hypergeometric functions. The analytical expressions show excellent agreement with the simulation results. Numerical results show that for a system using QPSK under the frequent heavy shadowed fading condition, the diversity gain of approximately 7 dB can be obtained at the SEP of 10^{-1} with respect to the direct transmission, when only one relay is used. It increases to around 12 dB in the case of 3 relays.
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Sokchenda Sreng, Benoît Escrig, Marie-Laure Boucheret. Exact Symbol Error Probability of Hybrid/Integrated Satellite-Terrestrial Cooperative Network. IEEE Transactions on Wireless Communications, Institute of Electrical and Electronics Engineers, 2013, vol. 12 (n° 3), pp. 1310-1319. ⟨10.1109/TWC.2013.013013.120899⟩. ⟨hal-01154192⟩

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