Title :
Average sum-BER analysis of AF two-way relay networks with direct links
Author :
Hyunjun Kim ; Tepedelenlioglu, Cihan
Author_Institution :
Sch. of Electr., Comput., & Energy Eng., Arizona State Univ., Tempe, AZ, USA
Abstract :
Unified average sum-bit error rate (BER) analysis is carried out for amplify-and-forward (AF) two-way relay networks with direct links in Rayleigh fading. Average combined sum-BER bounds are provided in closed-form with a simple expression for different protocols including a novel one using four time slots. High signal-to-noise ratio (SNR) performance is also presented for its simplicity. Finally, all performance is compared using simulations, and it can be seen that the proposed protocol with normalized rate and power outperforms other protocols when average transmit powers from two sources are sufficiently different.
Keywords :
Rayleigh channels; amplify and forward communication; error statistics; protocols; relay networks (telecommunication); AF two-way relay networks; Rayleigh fading channel; SNR performance; amplify-and-forward two-way relay networks; average combined sum-BER bounds; average sum-BER analysis; closed-form expression; direct links; four time slots; high signal-to-noise ratio performance; protocols; unified average sum-bit error rate analysis;
Conference_Titel :
Signals, Systems and Computers (ASILOMAR), 2012 Conference Record of the Forty Sixth Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
978-1-4673-5050-1
DOI :
10.1109/ACSSC.2012.6489243
