TY  - JOUR
T1  - Memory sub-banking scheme for high throughput MAP-based SISO decoders.
JF  - IEEE Transactions on VLSI systems
A1  - Tiwari, M.
LA  - English
UL  - https://tuklas.up.edu.ph/Record/UP-99796217609611393
AB  - The sliding window (SW) approach has been proposed as an effective means of reducing the memory requirements as well as the decoding latency of the maximum a posteriori (MAP) based soft-input soft-output (SISO) decoder in a Turbo decoder. In this paper, we present sub-banked memory implementations (both single port and dual port) of the SW SISO decoder that achieves high throughput, low decoding latency, and reduced memory energy consumption. Our contributions include derivation of the optimal memory sub-banked structure for different SW configurations, study of the relationship between memory size and energy consumption for different SW configurations and study of the effect of number of sub-banks on the throughput/decoding latency for a given SW configuration.
KW  - SISO decoders.
KW  - Decoding latency.
KW  - High throughput MAP.
KW  - Maximum a posteriori.
KW  - Memory energy consumption.
KW  - Memory requirements.
KW  - Memory size.
KW  - Memory sub-banking.
KW  - Sliding window.
KW  - Soft-input soft-output decoder.
KW  - Throughput/decoding latency.
KW  - Turbo decoder.
ER  -