A new criterion for retransmission in type I H-ARQ schemes of LDPC coded OFDM systems
- Authors
- Jang, Min-Ho; Shin, Beomkyu; No, Jong-Seon; Kim, Sang-Hyo; Shin, Dong-Joon
- Issue Date
- Sep-2009
- Publisher
- IEEE
- Citation
- IEEE Vehicular Technology Conference, pp.1 - 4
- Indexed
- SCOPUS
- Journal Title
- IEEE Vehicular Technology Conference
- Start Page
- 1
- End Page
- 4
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/176213
- DOI
- 10.1109/VETECF.2009.5378749
- ISSN
- 1550-2252
- Abstract
- In this paper, a new criterion for reordering of lowdensity parity-check (LDPC) coded orthogonal frequency division multiplexing (OFDM) subframes is proposed for type I hybrid automatic repeat request (H-ARQ) systems. It is verified from numerical analysis that a subframe reordering pattern having larger channel capacity shows better bit error rate (BER). Also, it is shown that the subframe reordering pattern achieving equal combined power allocation for each subframe maximizes the channel capacity and outperforms other subframe reordering patterns in terms of BER performance. Simulation results are provided to confirm that for a very slow varying fading channel, the proposed subframe reordering scheme for achieving equal combined power allocation gives better BER performance than the conventional Chase combining scheme without increasing the decoding complexity.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 공과대학 > 서울 융합전자공학부 > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.