WCDMA for UMTS: Radio Access for Third Generation Mobile Communications
WCDMA for UMTS: Radio Access for Third Generation Mobile Communications
Reconfiguration Aspects and a Reconfigurable Outer Block Interleaver for 3G Applications
Wireless Personal Communications: An International Journal
Efficient TTI for 3G multimedia applications
Advances in Multimedia
Implementation of a reconfigurable turbo decoder in 3GPP for flat Rayleigh fading
Digital Signal Processing
Novel Results on 3G Reconfigurable Outer Block Interleaving Based on FER
Wireless Personal Communications: An International Journal
Design and analysis of turbo codes on Rayleigh fading channels
IEEE Journal on Selected Areas in Communications
Novel Results on 3G Reconfigurable Outer Block Interleaving Based on FER
Wireless Personal Communications: An International Journal
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Outer block interleaving improves the performance of turbo codes, especially in correlated Rayleigh fading wireless channels. The choice of inappropriate number of columns for the outer block interleaver can increase BER. Therefore, the idea of an adaptive outer block interleaver with column number optimized according to the operating environment or mobile terminal speed and date rate has gained considerable attention. SOVA and log-MAP represent the main algorithms for turbo decoding. This work presents simulation scenarios for urban or suburban outdoor operating environment (50 km/h terminal speed) for the different UMTS outer block interleaver configurations. Particularly, simulation results are demonstrated using four different data rates, 5114 bits frame length and SOVA turbo decoding algorithm. Comparing the corresponding outer block interleaver number of columns proposed in [6, 7] for log-MAP turbo decoding algorithm, in this work we observe different values for a data rate of 384 kbps and BER performance. For higher data rates, as well as FER performance, the proposed values are the same.