Performance evaluation of AMC turbo coded OFDM for 3GPP Long Term Evolution downlink system

Author

El Makhtari, S. ; Moussaoui, Mohamed ; Samadi, Hassan

Author_Institution

Lab. des Technol. de l´´Inf. et de la Commun., Ecole Nat. des Sci. Appl., Tangier, Morocco

fYear

2012

fDate

10-12 May 2012

Firstpage

490

Lastpage

494

Abstract

This paper presents a performance evaluation of OFDM LTE downlink physical layer according to the latest 3GPP specifications. Particularly, adaptive modulation and coding (AMC) is described and analyzed. This is in conjunction with the turbo decoding algorithm Max-Log-Maximum A Posteriori (Max-Log-MAP) used in soft input soft output (SISO) decoders. The performance analysis is carried out in terms of bit error rate (BER) and throughput by varying parameters such as signal to noise ratio (SNR), modulation schemes, coding rates and decoding iterations number.

Keywords

Long Term Evolution; OFDM modulation; adaptive codes; adaptive modulation; decoding; error statistics; maximum likelihood estimation; modulation coding; turbo codes; 3GPP long term evolution downlink system; AMC turbo coded OFDM; Max-Log-MAP; adaptive modulation and coding; bit error rate; coding rates; decoding iterations number; max-log-maximum a posteriori; orthogonal frequency division multiplexing; performance evaluation; signal to noise ratio; soft input soft output decoders; turbo decoding algorithm; AWGN; Decoding; Encoding; Iterative decoding; OFDM; Phase shift keying; Quadrature amplitude modulation; 3GPP LTE; Adaptive Modulation and Coding; BER; OFDM; Throughput; Turbo Coding;

fLanguage

English

Publisher

ieee

Conference_Titel

Multimedia Computing and Systems (ICMCS), 2012 International Conference on

Conference_Location

Tangier

Print_ISBN

978-1-4673-1518-0

Type

conf

DOI

10.1109/ICMCS.2012.6320194

Filename

6320194