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To mitigate inter-cell interference (ICI) and achieve higher spectrum efficiency, fractional frequency reuse (FFR) has been widely adopted by the next generation wireless systems, wherein different frequency reuse factors are applied to cell center and cell edge zones. In such conventional FFR, a contiguous radio spectrum is partitioned in a fixed fashion across all cells for edge and cell center...
Next generation wireless system such as advanced WiMAX (i.e., IEEE802.16m) and LTE advanced will fully embrace multi-hop relay architecture. The conventional Automatic Repeat reQuest (ARQ) and the more recent Hybrid ARQ (HARQ) are two simple yet highly effective error control techniques designed for single hop system. Nevertheless, extending them in a synergistic manner to support multi-hop relay...
The technology of wireless mesh network (WMN) provides a flexible Internet access service in a wide region by employing multi-hop wireless routing and enhances the network performance by utilizing multi-radio and multi-channel. Delay analysis is a fundamental issue for delay-sensitive application such as VoIP and video conference, and delay constrained capacity is essential for a network to provide...
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