Li, Liang, Maunder, Robert G., Al-Hashimi, Bashir M. and Hanzo, Lajos
Design of Fixed-Point Processing Based Turbo Codes Using Extrinsic Information Transfer Charts
At IEEE Vehicular Technology Conference, Canada.
The operand-width specifications in fixed-point hardware implementations of turbo code decoders is an important design issue, since this governs the trade-off between the decoder's performance and its complexity, cost, area and energy consumption. The investigation of this issue would be extremely time-consuming in the conventional approach, which relies upon Monte-Carlo simulation based Bit Error Ratio (BER) analysis. In this paper, we propose a generic design method, which uses EXtrinsic Information Transfer (EXIT) chart analysis to simplify this design process. Our method is not only an order of magnitude faster than the conventional Monte-Carlo simulation based approach, but also offers deeper insights into why performance degradations are imposed by insufficient operand-width specifications. The benefits of our generic method are demonstrated in the context of a turbo decoder, allowing accurate specifications to be obtained and compared to those suggested by previous works.
Conference or Workshop Item
||Event Dates: September 2010
|Venue - Dates:
||IEEE Vehicular Technology Conference, Canada, 2010-09-01
||Extrinsic Information Transfer chart, EXIT chart, Fixed-point, turbo code, UMTS
||Electronic & Software Systems, Southampton Wireless Group
|6 September 2010||Published|
||28 Apr 2010 14:08
||17 Apr 2017 18:27
|Further Information:||Google Scholar|
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