Performance Analysis for Decode-and-Forward Two-Way Relay Networks with Limited Feedback Beamforming

Author

Jia Zhou ; Xiaoxiang Wang ; Mingming Li

Author_Institution

Key Lab. of Universal Wireless Commun., Beijing Univ. of Posts & Telecommun., Beijing, China

fYear

2014

fDate

18-21 May 2014

Firstpage

1

Lastpage

5

Abstract

In this paper, we study the performance of fixed decode-and-forward (DF) two-way relay cooperative networks with multi-antenna sources employing limited feedback beamforming (LFBF) for signal transmission. The closed-form expressions for the overall outage probability and sum symbol error rate (SSER) are derived using the moment generation function (MGF) of the signal- to-noise-ratio (SNR) at the relay. Subject to total power constraint, we also explore an optimal power allocation scheme between sources and relay to minimize the system outage probability and symbol error rate. Simulations are given to verify the correctness of the theoretical derivations. Results show that the proposed LFBF scheme can achieve considerable tradeoff between performance and complexity.

Keywords

array signal processing; cooperative communication; decode and forward communication; error statistics; multifrequency antennas; relay networks (telecommunication); telecommunication network reliability; LFBF scheme; MGF; SNR; SSER; closed-form expressions; decode and forward two-way relay networks; fixed DF two-way relay cooperative networks; limited feedback beamforming; moment generation function; multintenna sources; optimal power allocation scheme; overall outage probability minimization; performance analysis; signal transmission; signal-to-noise-ratio; sum symbol error rate; total power constraint; Array signal processing; Channel estimation; Error analysis; MIMO; Nickel; Relays; Resource management;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference (VTC Spring), 2014 IEEE 79th

Conference_Location

Seoul

Type

conf

DOI

10.1109/VTCSpring.2014.7023043

Filename

7023043