Approximate Expression of Bit Error Rate in Uplink MC-CDMA Systems with Equal Gain Combining

DEVELİ I., Akdagli A.

JOURNAL OF COMMUNICATIONS AND NETWORKS, cilt.15, sa.1, ss.25-30, 2013 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 15 Sayı: 1
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1109/jcn.2013.000006
  • Dergi Adı: JOURNAL OF COMMUNICATIONS AND NETWORKS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.25-30
  • Erciyes Üniversitesi Adresli: Evet

Özet

Uplink multicarrier code-division multiple-access (MCCDMA) with equal gain combining (EGC) over Nakagami fading channels is considered. An improved expression which is a feasible alternative for the bit error rate (BER) performance evaluation of MC-CDMA signals is proposed. Simulated annealing algorithm is employed to obtain the optimum value of the coef?cients belonging to the proposed expression. Numerical examples show that the performance curves computed by the improved expression are in good agreement with the results obtained by the exact expression. Thus, the proposed expression can improve the accuracy of BER performance evaluation that has been realized by the approximate expression.