Sang-Seol Lee

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To achieve better sound quality and to improve data reception, digital radio mondiale (DRM) offers a worldwide initiative to bring analog amplitude modulation (AM) radio into the digital era. DRM systems use coded orthogonal frequency division multiplexing (COFDM) modulation with a multilevel coding scheme to get high resistance to the multipath padding and(More)
This paper presents a novel low-cost high-performance CAVLC decoder for H.264/AVC. The proposed CAVLC decoder generates the length of coeff token and total zeros symbols with simple arithmetic operation. So, it can be implemented with reduced look-up table. And we propose multi-symbol run before decoder which has enhanced throughput. It can decode more than(More)
This paper proposes the design and VLSI implement of high efficient Context-based Adaptive Variable Length Coding (CAVLC) encoder which adopted a modified Variable Length Coding (VLC) look up table technique and parallel processing. The proposed CAVLC encoder used upper and under buffer as input buffer to perform zigzag scanning with both way ordering.(More)
There are so many needs for image transmission through the sensor network. To meet these needs, we propose AUEP(Adaptive Unequal Error Protection) scheme for JPEG2000 image transmission through the IEEE 802.15.4. The AUEP method assign adaptive code rate resulting from PER(Packet Error Rate). The results which are given through the experiments show that the(More)