Opportunistic Scheduling for Wireless Networks

Opportunistic Downlink Scheduling for Multiuser OFDM Systems ; Opportunistic Downlink Scheduling for Multiuser Orthogonal Frequency Division Multiplexing Systems

Opportunistic Scheduling for Wireless Networks

Opportunistic Downlink Scheduling for Multiuser OFDM Systems ; Opportunistic Downlink Scheduling for Multiuser Orthogonal Frequency Division Multiplexing Systems

Zhang, Zhi

We consider the problem of downlink scheduling for multi-user OFDM (Orthogonal Frequency Division Multiplexing) systems. We derive optimal scheduling policies under three QoS/fairness constraints -- temporal fairness, utilitarian fairness, and minimum-performance guarantees. To calculate these optimal policies, we interpret the problem as a maximal bipartite matching problem. To solve this problem, we apply the modified Hungarian algorithm and a practical suboptimal algorithm. The simulation results show that our schemes achieve significant improvement in system performance compared with a non-opportunistic scheme.

Colorado State University. Libraries

Chong, Edwin Kah Pin

2006

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STUF2006100019ISTC

eng

English

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