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This paper proposes an H.263 based DCT-domain video combinel; which is suitable for a multipoint continuous presence videoconference system and supports up to six conferees. Main Iissues of the H.263 video combiner are discussed. A software-based combiner is implemented and tested for various test sequences. The combined videos have promising quality and(More)
A study of space-time block coding in analytical form-multiple input and multiple output (STBC-MIMO) system was done in various cases. Initially, a basic Alamouti scheme for encoding was illustrated. Then, the performance of proposed STBC-MIMO was studied under varying a number of transmitting antennas, varying number of receiving antennas, varying(More)
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