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An Adaptive Resource Allocation Algorithm Based on Spatial Subchannel in Multiuser MIMO/OFDM Systems

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4 Author(s)
X. Lu ; State Key Lab. of Integrated Services, Networks Xidian Univ., Xian ; Z. Li ; J. Cai ; X. Chen

Spatial subchannels in multiuser multiple-input multiple-output/orthogonal frequency-division multiplexing (MIMO/OFDM) systems are invested. With the goal of maximizing the overall system throughput, we derive the criterion of subcarrier allocation and introduce an adaptive resource allocation algorithm. Furthermore, a time-frequency blockwise loading design which may decrease the computational complexity is suggested. The simulation results show that the algorithm can achieve good performance and high transmission rate efficiently.

Published in:

2008 IEEE International Conference on Communications

Date of Conference:

19-23 May 2008