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Multi-antenna Blind Space-time Signal Reception,

Posted on:2007-03-08Degree:MasterType:Thesis
Country:ChinaCandidate:B GuFull Text:PDF
GTID:2208360185483399Subject:Communication and Information System
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From the invention of the telegram to the commercial use of the third Generation (3G) communications, and from the emergence of wired communications to the rush of wireless communications, communication techniques are influencing people's lives deeply and transforming the whole society. As the developmental tendency of the communications, wireless communications has become an important sign of the social development. The future communication systems are expected to satisfy higher requirements, it needs offer not only large coverage and reliable transmission but also high data rate and spectrum efficiency, etc.However, practical communication systems are facing lots of complicated problems, such as multi-path fading, time variation of channel, noise, multi-access interference (MAI), inter-symbol interference (1SI) and the limitation of bandwidth, which affect the quality of communication links and system capacity greatly, and also become the key factors obstructing the development of wireless communications. Meanwhile, how to optimize the assignment of system resources without increasing the consumption of transmission power and sacrificing the bandwidth, and how to fulfill the quality of service (QoS) of different users in a multiuser system are practical problems to be solved.Space time processing technique offers an effective way to solve the above-mentioned problems, and it has become a hot research topic during these years. Multi-antenna space time processing theory belongs to the field of information science, which relates to temporal domain signal processing, spatial domain signal processing, adaptive signal processing and blind signal processing, etc.Transmitter and receiver are the main parts to construct the space time system, and it is a very challenging task to change and optimize the traditional system construction and signal processing methods in order to improve the system performances. Whereas diversity and beamforming are two important...
Keywords/Search Tags:diversity, beamforming, space time processing, independent component analysis, antenna selection
PDF Full Text Request
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