Title :
Low SNR capacity of multi-base station cooperative transmission
Author :
Zhang, Jun ; Jiang, Bin ; Jin, Shi ; Gao, Xiqi
Author_Institution :
Nat. Mobile Commun. Res. Lab., Southeast Univ., Nanjing, China
Abstract :
This paper investigates the ergodic sum capacity of the downlink transmission for cooperative cellular networks with multi-base stations (BSs) and single user in the low signal-to-noise ratio (SNR) regime. We consider a general jointly correlated MIMO channel model and assume all BSs only have statistical channel state information (CSI), the user has perfect CSI. We first derive analytical expressions for the two key low SNR parameters: the minimum required Eb/No for reliable communications and the wideband slope So. Based on these results, we study the effects of transmit and receive correlation, as well as the number of BSs. Monte-Carlo simulations are performed to validate our analytical results.
Keywords :
MIMO communication; Monte Carlo methods; cellular radio; channel capacity; cooperative communication; statistical analysis; telecommunication network reliability; Monte-Carlo simulations; cooperative cellular networks; ergodic sum capacity; general jointly correlated MIMO channel model; low SNR capacity; low signal-to-noise ratio; multibase station cooperative transmission; receive correlation; statistical channel state information; transmit correlation; wideband slope; Correlation; Downlink; MIMO; Receiving antennas; Signal to noise ratio; Wideband; Multi-base station; cooperative network; ergodic capacity; low SNR;
Conference_Titel :
Wireless Communications and Signal Processing (WCSP), 2011 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4577-1009-4
Electronic_ISBN :
978-1-4577-1008-7
DOI :
10.1109/WCSP.2011.6096750
