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 adaptive UMTS outer block interleaving using SOVA turbo decoder
ISWCS'09 Proceedings of the 6th international conference on Symposium on Wireless Communication Systems
Design and analysis of turbo codes on Rayleigh fading channels
IEEE Journal on Selected Areas in Communications
Novel results on adaptive UMTS outer block interleaving using SOVA turbo decoder
ISWCS'09 Proceedings of the 6th international conference on Symposium on Wireless Communication Systems
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Outer block interleaving and time transmission interval (TTI) are two interrelated parameters for the design of 3G systems. Particularly, they represent a critical issue for the implementation of UMTS turbo coding in flat Rayleigh fading channels. Thus, an efficient TTI choice can save computational complexity. In this paper different scenarios are investigated using the maximum UMTS frame length and simulation results are presented for the four possible outer block interleaver configurations in the case of flat Rayleigh fading channel. Considering frame error rate (FER) performance we propose a TTI of 80 ms for rural and urban/suburban outdoor operating environments for the majority of scenarios. For indoor/low range outdoor operating environment 20 ms is the proposed choice apart from low data rates.