Title :
Comparison of channel capacity for MIMO-DAS versus MIMO-CAS
Author :
Shen, Cong ; Zhou, Shidong ; Yao, Yan
Author_Institution :
State Key Lab on Microwave & Digital Commun., Tsinghua Univ., Beijing, China
Abstract :
This paper proposes a comparative study of MIMO channel capacity for both co-located antenna system (CAS) and distributed antenna system (DAS). In DAS we consider the channel model compassing the Rayleigh fading, log-normal shadowing fading and path loss. We find that different power allocation schemes and different locations of the mobile affect the channel capacity gain of MIMO-DAS significantly, and MIMO-DAS offers large capacity gain over the traditional MIMO-CAS, which is demonstrated in our simulations.
Keywords :
MIMO systems; Rayleigh channels; channel capacity; closed loop systems; mobile communication; multipath channels; transmitting antennas; MIMO-CAS; MIMO-DAS; Rayleigh fading; closed-loop channel capacity analysis; colocated antenna system; distributed antenna system; equal-power allocation; flat quasistatic frequency-flat fading channel; log-normal shadowing fading; multiple input multiple output; path loss; transmit antennas; water-filling power allocation schemes; Analysis of variance; Channel capacity; Fading; MIMO; Power system modeling; Quality of service; Rayleigh channels; Receiving antennas; Scattering; Wireless communication;
Conference_Titel :
Communications, 2003. APCC 2003. The 9th Asia-Pacific Conference on
Print_ISBN :
0-7803-8114-9
DOI :
10.1109/APCC.2003.1274323
