Outage performance of fixed-gain and variable-gain AF full-duplex relaying in non-identical Nakagami-m fading channels

Koc A., Altunbaş İ., Yongacoglu A.

EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND NETWORKING, 2017 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1186/s13638-017-0888-1
  • Dergi Adı: EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND NETWORKING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anahtar Kelimeler: Full-duplex relaying, Nakagami-m, Amplify and forward, Fixed-gain, Variable-gain, Outage analysis, POWER ALLOCATION, NETWORKS
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

We investigate outage performance of fixed-gain and variable-gain amplify-and-forward (AF) full-duplex (FD) relaying systems under residual loop-interference (LI) in non-identical Nakagami-m fading channels. New exact outage probability expressions are derived analytically in a single-integral form by using the cumulative distribution function approach. Moreover, tight lower-bound and asymptotic outage probability expressions are derived in closed-form for the evaluated systems. It is shown that the fixed-gain AF-FD relaying outperforms the variable-gain AF-FD relaying when LI power and/or signal-to-noise ratio increase. The analytical results are verified by Monte-Carlo simulations.