Title :
An Improved Low-Feedback Scheduling Scheme in MU-MIMO
Author :
Xie, Peizhong ; Zheng, Baoyu
Author_Institution :
Coll. of Telecommun. & Inf. Eng., Nanjing Univ. of Posts & Telecommun., Nanjing, China
Abstract :
An improved multiuser scheduling scheme which can reduce feedback load and preserve most of the capacity performance in MIMO channels is proposed in this paper. Each user compares its maximum SINR to a threshold and only those who fall above it along with the index transmit antenna are sent back to the base station. The base station allocates independent channels to the users with the highest SINR .The average capacity of the proposed method is obtained and shown to match the simulation.
Keywords :
MIMO communication; channel allocation; channel capacity; multi-access systems; scheduling; wireless channels; MIMO channel; MU-MIMO; base station; channel allocation; channel capacity performance; low-feedback scheduling scheme; multiuser scheduling scheme; transmit antenna; Antenna feeds; Downlink; Feedback; MIMO; Receiving antennas; Scheduling algorithm; Signal to noise ratio; Slot antennas; Throughput; Transmitting antennas;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-3692-7
Electronic_ISBN :
978-1-4244-3693-4
DOI :
10.1109/WICOM.2009.5305329
