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Compared to the central antenna system (CAS), the distributed antenna system (DAS) improves the communication performance greatly because of the macro-diversity and the micro-diversity. However, the channel between the mobile terminal and a remote access unit (RAU) in the DAS is a composite fading channel, which makes it be difficult to achieve a closed form expression in capacity analysis. In this...
Transmit diversity (TD) is an efficient method to yield channel capacity in single-user multi-antenna system. In this paper, we first analyze scheduling based on TD in multi-user distributed antenna systems (DAS). We show that average throughput of the system grows with the total number of remote access units (RAUs) in DAS. However, when the total number of RAUs is constant, TD has little improvement...
The capacity of the BLAST system is larger than that of a single antenna system, but error propagation affects the BLAST architecture capacity. The ergodic capacity is analyzed of BLAST architecture with error propagation (EP-BLAST). We find that in EP-BLAST system, the diversity orders of all symbols transmitted by different antenna are same, which are equal to the smallest diversity order of the...
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