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http://dx.doi.org/10.5909/JBE.2010.15.6.749

On the Gain of Component-Swapping Technique with DVB-T2 16K LDPC Codes in MIMO-OFDM Systems  

Jeon, Sung-Ho (KBS Technical Research Institute)
Yim, Zung-Kon (KBS Technical Research Institute)
Kyung, Il-Soo (KBS Technical Research Institute)
Kim, Man-Sik (KBS Technical Research Institute)
Publication Information
Journal of Broadcast Engineering / v.15, no.6, 2010 , pp. 749-756 More about this Journal
Abstract
The signal space diversity is one of the promising transmission techniques in next generation mobile TV service. However, DVB-T2 does not consider the multiple antennas (MIMO) so that the cyclic Q-delay method, a component interleaver in DVB-T2, causes a critical issue in detecting symbols at the receiver side by increasing the inter-symbol dependency. To solve this problem, the component-swapping technique is proposed, which limits the inter-symbol dependency in order to reduce detection complexity. In this paper, the achievable gain of a component-swapping technique combined with 16K LDPC code defined in DVB-T2 is evaluated by computer simulations. From the results, the gain is confirmed in terms of BER and receive complexity compared to legacy component interleaver methods.
Keywords
DVB; NGH; LDPC; Component-Swapping; Signal Space Diversity (SSD); MIMO-OFDM;
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