한국멀티미디어학회논문지 (Journal of Korea Multimedia Society)
- 제9권6호
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- Pages.728-734
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- 2006
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- 1229-7771(pISSN)
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- 2384-0102(eISSN)
Space-Time Carrier Interferometry Techniques with Low-density Parity Check Code for High-speed Multimedia Communications
- Chung Yeon-Ho (Division of Electronics, Computer and Telecommunications, Pukyong National University)
- 발행 : 2006.06.01
초록
Carrier interferometry code is considered as a promising scheme that provides significant performance improvement via frequency diversity effect. Space-time coding is commonly employed to achieve a performance gain through space diversity. The combination of these techniques and forward error correction coding will lead to enhanced system capacity and performance. This paper presents a low-density parity check (LDPC) coded space-time orthogonal frequency division multiplexing (OFDM) transmission scheme with carrier interferometry code for high-capacity and high-performance mobile multimedia communications. Computer simulations demonstrate that the proposed mobile multimedia transmission system offers a considerable performance improvement of approximately 9dB in terms of Eb/No in the Rayleigh fading channel with relatively low delay spread, in comparison with space-time OFDM. Performance gains are further increased, comparing with traditional OFDM systems.