ISSN 0253-2778

CN 34-1054/N

Open AccessOpen Access JUSTC

Analysis and comparison of transmission capacity for multiuser distributed and co-located antenna systems

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  • Received Date: 11 May 2009
  • Rev Recd Date: 20 July 2009
  • Publish Date: 31 October 2009
  • In order to quantificationally compare the supported user distribution density and quality of service (QoS) by distributed antenna system (DAS) and co-located antenna system (CAS) under multiuser condition, a stochastic geometry based performance analysis method is proposed. When the users have a Poisson distribution in the cell, this method can obtain the exact expression of transmission capacity for the two multi-antenna systems. From the expression of transmission capacity for DAS, it is found that, given the user distribution density, in order to satisfy a certain QoS requirement, there is an upper bound of user access distance. Both theoretical analysis and simulation results show that, under the same condition, compared with CAS, DAS is able to admit more users and support higher QoS.
    In order to quantificationally compare the supported user distribution density and quality of service (QoS) by distributed antenna system (DAS) and co-located antenna system (CAS) under multiuser condition, a stochastic geometry based performance analysis method is proposed. When the users have a Poisson distribution in the cell, this method can obtain the exact expression of transmission capacity for the two multi-antenna systems. From the expression of transmission capacity for DAS, it is found that, given the user distribution density, in order to satisfy a certain QoS requirement, there is an upper bound of user access distance. Both theoretical analysis and simulation results show that, under the same condition, compared with CAS, DAS is able to admit more users and support higher QoS.
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