Abstract
This paper provides Closed-form expressions for the average channel capacity and probability of outage of dual-branch Selection Combining (SC) over uncorrelated Nakagami-0.5 fading channels. This channel capacity and probability of outage are evaluated under Optimum Power with Rate Adaptation (OPRA) and Truncated channel Inversion with Fixed Rate transmission (TIFR) schemes. Since, the channel capacity and probability of outage expressions contain an infinite series, the series are truncated and bounds on the truncated errors are presented. The corresponding expressions for Nakagami-0.5 fading are called expressions under worst fading condition with severe fading. Finally, numerical results are presented, which are then compared to the channel capacity and probability of outage results for no diversity case, which has been previously published under OPRA and TIFR schemes. It has been observed that OPRA provides improved average channel capacity and probability of outage, as compared to TIFR under worst case of fading.
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