TAILIEUCHUNG - Báo cáo hóa học: " Research Article Distributed Space-Time Block Code over Mixed Rayleigh and Rician Frequency-Selective Fading Channels"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Distributed Space-Time Block Code over Mixed Rayleigh and Rician Frequency-Selective Fading Channels | Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2010 Article ID 385872 9 pages doi 2010 385872 Research Article Distributed Space-Time Block Code over Mixed Rayleigh and Rician Frequency-Selective Fading Channels Quoc-Tuan Vien 1 2 Le-Nam Tran 1 and Een-Kee Hong1 1 School of Electronics and Information Kyung Hee University Yongin Geonggi 446-701 Republic of Korea 2 School of Engineering and Computing Glasgow Caledonian University Cowcaddens Road Glasgow G4 0BA UK Correspondence should be addressed to Een-Kee Hong ekhong@ Received 28 October 2009 Revised 18 March 2010 Accepted 9 June 2010 Academic Editor Mohamed Hossam Ahmed Copyright 2010 Quoc-Tuan Vien et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. This paper proposes a new distributed space-time block code DSTBC over frequency-selective fading channels for two-hop amplify and forward relay networks consisting of a source node S two relay nodes R1 and R2 and a destination node D . The proposed DSTBC is designed to achieve maximal spatial diversity gain and decoupling detection of data blocks with a low-complexity receiver. To achieve these two goals S uses zero-sequence padding and relay nodes precode the received signals with a proper precoding matrix. The pairwise error probability PEP analysis is provided to investigate the achievable diversity gain of the proposed DSTBC for a general channel model in which one hop is modeled by Rayleigh fading and the other by Rician fading. This mixed Rayleigh-Rician channel model allows us to analyze two typical scenarios where are in the neighborhood of either S or D. 1. Introduction The reliability of wireless communications over fading channels can be greatly improved by the use of diversity schemes. For multiple-input multiple-output .

TÀI LIỆU LIÊN QUAN
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.