Design and Implementation of a Memory-Reduced Turbo Parallel Decoding

Abstract

Turbo-decoding for the Long Term Evolution (LTE) wireless communication standard is the most challenging tasks in terms of computational complexity and power consumption of corresponding cellular devices. This paper represents a parameterized parallel Turbo decoder for LTE terminals. For supporting the high peak data-rate defined in the forthcoming 3GPP LTE standard, Turbo decoder is needed as a key component of the radio baseband chip. By exploiting the trade-off of precision, speed and area consumption, a Turbo decoder with eight parallel SISO units is implemented to meet the throughput requirement.