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Providing ubiquitous very high data rate coverage in next generation wireless networks is a formidable goal, requiring cost-effective Radio Access Network (RAN) devices, such as multi-user enabled Amplify-and-Forward (AF) relays, and fair Radio Resource Management (RRM). To further this goal, the authors investigate multi-user enabled AF relays which multiplex user's data in Orthogonal Frequency Division Multiple Access (OFDMA). These relays are cost-effective, simpler to implement, and introduce less delay in comparison to other relay based routers. They devise a Generalized Proportionally Fair (GPF) RRM framework for multi-user enabled AF relays. In GPF scheduling a single parameter is used to gradually change schedules from throughput optimal to proportionally fair.
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