Title :
Coordinated Transmission with Block Diagonalization in MIMO Broadcast
Author :
Wang, Yachen ; Jiang, Jingsai ; Fan, Yanhong ; Ye Li
Author_Institution :
Shandong Comput. Sci. Center, Jinan, China
Abstract :
In this paper, we investigate coordinated multiple-input multiple-output (MIMO) transmission schemes in an interference-limited cellular downlink. We propose a novel block diagonalization (BD) scheme which is combined with zero-forcing (ZF) criterion. In the scheme, multi-user interference is mitigated by BD while interference among spatial data streams for a user is mitigated by ZF. Also an efficient power allocation is proposed. Sum rate is largely increased by combining the novel coordinated scheme with the power allocation. Computer simulations demonstrate the effectiveness of the proposed coordinated scheme and its corresponding power allocation.
Keywords :
MIMO communication; cellular radio; radiofrequency interference; MIMO broadcast; block diagonalization scheme; coordinated multiple-input multiple-output transmission schemes; interference-limited cellular downlink; multiuser interference; power allocation; zero-forcing criterion; Complexity theory; Interference; MIMO; Receiving antennas; Resource management; Spatial databases; Wireless communication;
Conference_Titel :
Wireless Communications Networking and Mobile Computing (WiCOM), 2010 6th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-3708-5
Electronic_ISBN :
978-1-4244-3709-2
DOI :
10.1109/WICOM.2010.5600797
