BLER and spectral efficiency performances of a two-way relay channel scheme

Author

Bota, Vasile ; Bartha, Barna Janos ; Varga, M.

Author_Institution

Commun. Dept., Tech. Univ. of Cluj-Napoca, Cluj-Napoca, Romania

fYear

2014

fDate

29-31 May 2014

Firstpage

1

Lastpage

4

Abstract

This paper analyzes the block error rate and spectral efficiency performances of an Enhanced Two-Way Relay Channel (2wRCE) scheme over block Rayleigh-faded channels in a generic cellular environment. It presents the derivation of the theoretical expressions of the Block Error Rate (BLER) and spectral efficiency provided by the studied scheme, using an approximate method to compute the BLER ensured by the channel-code, and validates them by comparison to simulation results. The performances of 2wRCE are analyzed for different modulation orders and for various positions of the User Terminal (UT) vs. the Base Station (BS) and Relay Node (RN), and compared to the performances of the non-cooperative transmission in the same environment, pointing out the SNR domains for which the 2wRCE provides greater spectral efficiency, while observing a target BLER.

Keywords

Rayleigh channels; cellular radio; channel coding; error statistics; 2wRCE; BLER; base station; block Rayleigh-faded channels; block error rate; channel code; generic cellular environment; noncooperative transmission; relay node; spectral efficiency; two-way relay channel scheme; user terminal; Bit error rate; Decoding; Encoding; Quadrature amplitude modulation; Relays; Signal to noise ratio; Throughput; BLER; spectral efficiency; two-way relay channel;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications (COMM), 2014 10th International Conference on

Conference_Location

Bucharest

Type

conf

DOI

10.1109/ICComm.2014.6866681

Filename

6866681