A Fair Score-Based Scheduler for Spatial Transmission Mode Selection

Multi-antenna radio systems which are capable to select the spatial transmission mode according to the current channel conditions promise to achieve high transmission rates. Considering multiple users, the rates can be further increased if the multi-user diversity is properly utilized. However, fairness constraints have to be taken into account here to ensure that each user will be assigned any resources at all. We present a score-based scheduling solution which enables to adapt the degree of fairness supposed to be provided in the resource allocation process, and which further supports spatial transmission mode selection to attain a high overall throughput.

[1]  Carles Antón-Haro,et al.  Adaptive Switching between Spatial Diversity and Multiplexing : a Cross-layer Approach , 2005 .

[2]  Angel E. Lozano,et al.  Approaching the MIMO Capacity with a Low-Rate Feedback Channel in V-BLAST , 2004, EURASIP J. Adv. Signal Process..

[3]  Robert W. Heath,et al.  Switching between diversity and multiplexing in MIMO systems , 2005, IEEE Transactions on Communications.

[4]  Thomas Bonald.  A Score-Based Opportunistic Scheduler for Fading Radio Channels , 2004 .

[5]  Holger Boche,et al.  Multiple antenna multiple user channels: optimisation in low SNR , 2004, 2004 IEEE Wireless Communications and Networking Conference (IEEE Cat. No.04TH8733).

[6]  Babak Hassibi,et al.  On the capacity of MIMO broadcast channels with partial side information , 2005, IEEE Transactions on Information Theory.

[7]  A. Goldsmith,et al.  Sum power iterative water-filling for multi-antenna Gaussian broadcast channels , 2002, Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002..

[8]  V. Jungnickel,et al.  Rate-Maximized Switching Between Spatial Transmission Modes , 2006, 2006 Fortieth Asilomar Conference on Signals, Systems and Computers.

[9]  Shlomo Shamai,et al.  On the achievable throughput of a multiantenna Gaussian broadcast channel , 2003, IEEE Transactions on Information Theory.

[10]  David Tse,et al.  Sum capacity of the vector Gaussian broadcast channel and uplink-downlink duality , 2003, IEEE Trans. Inf. Theory.

[11]  L. Thiele,et al.  Capacity Scaling of Multi-User MIMO with Limited Feedback in a Multi-Cell Environment , 2007, 2007 Conference Record of the Forty-First Asilomar Conference on Signals, Systems and Computers.

[12]  Babak Hassibi,et al.  On the capacity of MIMO broadcast channel with partial side information , 2003, The Thrity-Seventh Asilomar Conference on Signals, Systems & Computers, 2003.

[13]  David Tse,et al.  Opportunistic beamforming using dumb antennas , 2002, IEEE Trans. Inf. Theory.

[14]  Lizhong Zheng,et al.  Diversity and multiplexing: a fundamental tradeoff in multiple-antenna channels , 2003, IEEE Trans. Inf. Theory.