Link Scheduling with QoS Guarantee for Wireless Relay Networks

The emerging wireless relay networks (WRNs) are expected to provide significant improvement on throughput and extension of coverage area for next-generation wireless systems. We study an optimization problem for multi-hop link scheduling with bandwidth and delay guarantees over WRNs. Our optimization problem is investigated under a general interference model with a generic objective. The objective can be based on various kinds of performance indexes (e.g., throughput, fairness and capacity) determined by service providers. We present efficient algorithms for maximizing the objective function. The experimental results indicate that our presented algorithms yield near-optimal performance.