Look-up Table Based Deferred-Iteration Aided Low-Complexity Turbo Hybrid ARQ
Chen, Hong, Maunder, Robert G. and Hanzo, Lajos (2011) Look-up Table Based Deferred-Iteration Aided Low-Complexity Turbo Hybrid ARQ. IEEE Transactions on Vehicular Technology, 60, (7), 3045-3053.
- Accepted Version
Since the introduction of turbo code aided Hybrid Automatic Repeat reQuest (HARQ) schemes, their complexity reduction has drawn research attention. In our previous work, we proposed an Early Stopping (ES) strategy for a turbo HARQ scheme, which results in a beneficial complexity reduction, while maintaining a high throughput. However, this scheme was designed to strike a compromise across the full range of channel conditions. As a further advance, in this paper, we propose a new Deferred Iterations (DI) strategy, which is specifically designed for taking into account the prevalent channel conditions, as characterized by the Extrinsic Information Transfer (EXIT) chart tunnel opening. More specifically, the DI strategy delays the commencement of turbo decoding until an open EXIT chart tunnel appears. Our simulation results demonstrate that the complexity of the proposed DI aided turbo HARQ schemes is reduced by up to 50%, which is achieved without compromising the Packet Loss Ratio (PLR) or throughput.
|Divisions:||Faculty of Physical and Applied Science > Electronics and Computer Science > Comms, Signal Processing & Control
|Date Deposited:||05 Jul 2011 11:00|
|Last Modified:||19 Jul 2012 12:47|
|Contributors:||Chen, Hong (Author)
Maunder, Robert G. (Author)
Hanzo, Lajos (Author)
|Further Information:||Google Scholar|
|ISI Citation Count:||0|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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