An MGF-based performance analysis of generalized selection combining over Rayleigh fading channels
Using the notion of the "spacing" between ordered exponential random variables, a performance analysis of the generalized selection combining (GSC) diversity scheme over Rayleigh fading channels is presented and compared with that of the conventional maximal-ratio combining and selection c...
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| Veröffentlicht in: | IEEE transactions on communications 2000-03, Vol.48 (3), p.401-415 |
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| container_title | IEEE transactions on communications |
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| creator | Alouini, M.-S. Simon, M.K. |
| description | Using the notion of the "spacing" between ordered exponential random variables, a performance analysis of the generalized selection combining (GSC) diversity scheme over Rayleigh fading channels is presented and compared with that of the conventional maximal-ratio combining and selection combining schemes. Starting with the moment generating function (MGF) of the GSC output signal-to-noise ratio (SNR), we derive closed-form expressions for the average combined SNR, outage probability, and average error probability of a wide variety of modulation schemes operating over independently, identically distributed (i.i.d.) diversity paths. Because of their simple form, these expressions readily allow numerical evaluation for cases of practical interest. The results are also extended to the case of non-i.i.d. diversity paths. |
| doi_str_mv | 10.1109/26.837044 |
| format | Article |
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Starting with the moment generating function (MGF) of the GSC output signal-to-noise ratio (SNR), we derive closed-form expressions for the average combined SNR, outage probability, and average error probability of a wide variety of modulation schemes operating over independently, identically distributed (i.i.d.) diversity paths. Because of their simple form, these expressions readily allow numerical evaluation for cases of practical interest. 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Starting with the moment generating function (MGF) of the GSC output signal-to-noise ratio (SNR), we derive closed-form expressions for the average combined SNR, outage probability, and average error probability of a wide variety of modulation schemes operating over independently, identically distributed (i.i.d.) diversity paths. Because of their simple form, these expressions readily allow numerical evaluation for cases of practical interest. The results are also extended to the case of non-i.i.d. diversity paths.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/26.837044</doi><tpages>15</tpages></addata></record> |
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| source | IEEE Electronic Library (IEL) |
| subjects | Channel estimation Channels Closed-form solution Diversity reception Error analysis Exact solutions Fading Mathematical analysis Mathematical models Modulation Performance analysis Permissible error RAKE receivers Random variables Signal to noise ratio Switches Wideband |
| title | An MGF-based performance analysis of generalized selection combining over Rayleigh fading channels |
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