TY - GEN
T1 - The application of EESM and MI-based link quality models for rate compatible LDPC codes
AU - Chen, Xiang
AU - Wan, Lei
AU - Gao, Zhenyuan
AU - Fei, Zesong
AU - Kuang, Jingming
PY - 2007
Y1 - 2007
N2 - System evaluation of different resource allocation, power control and link adaptation (LA) solutions require the multi-cell system simulations, which provide important reference to the standardization and system design. Such a system-level simulator is expected to be reliable and quick enough, which requires a very accurate and simple link quality model. The exponential effecrive-SNR mapping (EESM) model [1, 2] and mutual information-based (MI-based) model [3] were proposed recently, which have been proved to be pretty accurate and independent of fading for 3GPP Turbo-coded orthogonal frequency division multiplexing (OFDM) system [3, 4]. This paper investigates the accuracies of the above two models for the low-density parity-check (LDPC) codes, in terms of veracity and complexity for different coding rates, block lengths, mobile speeds and modulation schemes. Simulation results verify that both methods show quite good performance in different multi-state channels. The simpler MI-based model performs even better. Especially its coding model is independent of modulation schemes.
AB - System evaluation of different resource allocation, power control and link adaptation (LA) solutions require the multi-cell system simulations, which provide important reference to the standardization and system design. Such a system-level simulator is expected to be reliable and quick enough, which requires a very accurate and simple link quality model. The exponential effecrive-SNR mapping (EESM) model [1, 2] and mutual information-based (MI-based) model [3] were proposed recently, which have been proved to be pretty accurate and independent of fading for 3GPP Turbo-coded orthogonal frequency division multiplexing (OFDM) system [3, 4]. This paper investigates the accuracies of the above two models for the low-density parity-check (LDPC) codes, in terms of veracity and complexity for different coding rates, block lengths, mobile speeds and modulation schemes. Simulation results verify that both methods show quite good performance in different multi-state channels. The simpler MI-based model performs even better. Especially its coding model is independent of modulation schemes.
KW - Exponential effective-SNR-mapplng (EESM) model
KW - Link quality model
KW - Multi-state channels
KW - Mutual information-based (MI-based) model
UR - http://www.scopus.com/inward/record.url?scp=47649128091&partnerID=8YFLogxK
U2 - 10.1109/VETECF.2007.276
DO - 10.1109/VETECF.2007.276
M3 - Conference contribution
AN - SCOPUS:47649128091
SN - 1424402646
SN - 9781424402649
T3 - IEEE Vehicular Technology Conference
SP - 1288
EP - 1292
BT - 2007 IEEE 66th Vehicular Technology Conference, VTC 2007-Fall
T2 - 2007 IEEE 66th Vehicular Technology Conference, VTC 2007-Fall
Y2 - 30 September 2007 through 3 October 2007
ER -