Title :
Ergodic and Outage Capacity Analysis of Amplify-And-Forward MIMO Relay with OSTBCs
Author :
Chen, Shuping ; Wang, Wenbo ; Zhang, Xiang ; Zhang, Xing ; Peng, Mugen ; Li, Yong
Author_Institution :
Key Lab. of Universal Wireless Commun., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
Wireless cooperative relay is an efficient way in obtaining diversity in distributed manner, and it can also be used as a way in extending the cell coverage in cellular systems. In this paper, assuming receiver channel state information (CSI) only, the ergodic and outage capacity analysis are presented for amplify-and-forward (AF) multiple-input multiple-output(MIMO) relay channels deploying orthogonal space-time block codes (OSTBCs). Under flat Rayleigh fading environment, we derive closed-form analytical expressions for the calculation of the ergodic capacity and outage capacity for both the OSTBC transmission with and without the direct link. Numerical results show that all the derived analytical expressions are very tight and are valid for evaluations of the ergodic and outage capacity under various antenna configurations. The results also show how the number of transmit antennas and receives antennas affect the overall channel capacity under fading channel environments.
Keywords :
MIMO communication; Rayleigh channels; antenna arrays; block codes; orthogonal codes; space-time codes; amplify-and-forward MIMO relay; antenna configurations; channel state information; ergodic capacity analysis; flat Rayleigh fading environment; multiple-input multiple-output relay channels; orthogonal space-time block codes; outage capacity analysis; receives antennas; transmit antennas; wireless cooperative relay; Block codes; Channel capacity; Channel state information; Fading; Information analysis; MIMO; Rayleigh channels; Receiving antennas; Relays; Transmitting antennas;
Conference_Titel :
Wireless Communications and Networking Conference (WCNC), 2010 IEEE
Conference_Location :
Sydney, NSW
Print_ISBN :
978-1-4244-6396-1
DOI :
10.1109/WCNC.2010.5506772