Average symbol error rate and ergodic capacity of switch-and-examine combining diversity receivers over the alpha-mu fading channel

作者：Mohamed Refaat; Ismail Mahmoud H^*; Mourad Hebat Allah M

来源：Annales des Telecommunications, 2015, 70(1-2): 37-48.

DOI：10.1007/s12243-014-0432-9

• Diversity receivers
• alpha-mu fading
• Switch-and-examine combining
• Average symbol error rate
• Ergodic capacity

In this paper, we consider a switch-and-examine combining (SEC) diversity scheme operating over independent and identically distributed (i.i.d) branches assuming an alpha-mu fading channel. We derive expressions for the average symbol error rate (ASER) for a class of coherent modulation techniques considering this fading model as well as expressions for the ergodic capacity under the same assumptions. The results for the ASER and the ergodic capacity are shown to reduce to those previously reported in the literature for other channel models such as the Weibull model as a special case, which confirms the validity of the obtained expressions. Different aspects are studied including the effect of fading severity, the number of branches and the modulation scheme used. Also, insights on the optimal choice of the switching threshold are provided.

• 出版日期2015-2