Principles of mobile communication (2nd ed.)
Principles of mobile communication (2nd ed.)
On the capacity of multiuser wireless channels with multiple antennas
IEEE Transactions on Information Theory
Spectral efficiency of multicarrier CDMA
IEEE Transactions on Information Theory
Impact of antenna correlation on the capacity of multiantenna channels
IEEE Transactions on Information Theory
Antenna location design for generalized distributed antenna systems
IEEE Communications Letters
On the Deployment of Antenna Elements in Generalized Multi-User Distributed Antenna Systems
Mobile Networks and Applications
Wireless Personal Communications: An International Journal
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We investigate the uplink of a power-controlled multi-user distributed antenna system (DAS) with antennas deployed on a circle. Applying results from random matrix theory, we prove that for such a DAS, the per-user sum rate and the total transmit power both converge as user number and antenna number go to infinity with a constant ratio. The relationship between the asymptotic per-user sum rate and the asymptotic total transmit power is revealed for all possible values of the radius of the circle on which antennas are placed. We then use this rate-power relationship to find the optimal radius. With this optimal radius, the circular layout DAS (CL-DAS) is proved to offer a significant gain compared with a traditional colocated antenna system (CAS). Simulation results are provided, which demonstrate the validity of our analysis.