Iterate ZF-SO beam forming algorithm on sum capacity criteria

作者：Xing Zhi Qiang^*; Guo Shu Jun; Liu Wen Kai; Meng Wei Xiao

来源：Journal of Harbin Institute of Technology, 2008, 40(SUPPL.): 5-9.

• Lterate
• Multi-user MIMO
• Successive optimization
• Sum-capacity
• Zero-forcing

The combination of beam forming and multi-user MIMO is seen as one of the key technologies to meet the requirements of, higher data transmission rate, larger system capacity and better communication QoS for the next generation of mobile communication system. An iterate Zero-forcing-successive optimization (ZF-SO) beam forming algorithm is proposed for such system. The algorithm allows parts of interferences from other users left at the receiver, which can take noise canceling into the optimization object. Iteration is used to realize the cooperated optimization of weight matrixes with all users in the system. Theoretical analysis and simulation results all show using such algorithm, the system can obtain higher sum capacity at lower SNR than other existing algorithms.

• 出版日期2008