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Abstruct-In mobile communications, one way to combat both fading and cochannel interference is diversity reception. Thug we proposed a novel SIR weighting postdetection combing diversity scheme. The SIR is estimated and used as the weighting factor to compensate severe cochannel interference. The most distinctive feature of the proposed method is that the weighting factor (SIR) is esthated from both the matched filter output and a simple equation. Computer simulations c o n f i that the proposed diversity scheme achieves a better performance than the conventional method. Keyworak-mobile communication systems, cochannel interfireme, diversity, matchedJilter.

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This electronic docume AVS is domestic Audio Video-coding Standard series standards. AVS emploies RDO technique in mode decision but traversal mode increase computational complexity. In order to reduce model number ,the paper proposes a SKIP mode decision algorithm ,fast inter mode decision and selective Intra mode decision. Results show that the algorithm can increases coding efficiency while maintaining similar video quality.