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Conference Paper
A Hardware Architecture for MAP Decoding Based on Nibble Alignment
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- Authors
- Seungkwon Cho, Sok-Kyu Lee, Youngnam Han
- Issue Date
- 2011-10
- Citation
- International Conference on Mobile Services, Resources, and Users (MOBILITY) 2011, pp.146-150
- Language
- English
- Type
- Conference Paper
- Abstract
- In IEEE 802.16-2009 standard, a Subscriber Station (SS) has to meet timing constraints imposed by uplink and downlink MAP relevance. Thus, the standard adopts nibble alignment in MAP Information Elements (IEs) in order to support fast MAP decoding. However, some MAP IEs are not nibble-aligned with increased implementation complexity of a MAP decoder. In this paper, we present a hardware architecture designed to efficiently decode MAP message on a nibble basis while suppressing the increase in implementation complexity. The feasibility of the proposed architecture is verified by FPGA synthesis and its performance is presented in terms of MAP decoding time.
- KSP Keywords
- Decoding time, IEEE 802.16(WIMAX), Implementation complexity, Information Element, MAP decoding, Map Information, Subscriber station, hardware architecture, timing constraints, uplink and downlink