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We present a hybrid architecture, inspired by asynchronous BVH construction <xref ref-type="bibr" rid="ref1">[1] </xref>, for ray tracing animated scenes. Our hybrid architecture utilizes heterogeneous hardware resources: dedicated ray-tracing hardware for BVH updates and ray traversal and a CPU for BVH reconstruction. We also present a traversal scheme using a primitive’s...
In this paper, we propose a novel multi-hop transmission scheme for minimization of the end-to-end delay between source and destination. The simulation results show that proposed protocol can enhance the end-to-end delay performance and improve energy efficiency by minimizing the idle period of DRP reservation block.
The paper considers a hybrid ARQ (HARQ) scheme for a linear pre-coding-based closed-loop multiple-input multiple- output (MIMO) system, in which a pre-coding matrix is dynamically selected for every retransmission by taking into account a symbol-level combining gain obtained from the previous receptions. A new retransmission structure with a sequence of multiple codebooks is proposed that are optimized...
While the conventional codebook is defined only for the initial transmission in the closed-loop MIMO system, this paper proposes a new retransmission structure with a sequence of multiple codebooks, rather than using a single identical codebook for every retransmission. The pre-coding matrices, in each codebook, are sequentially linked so that each one can be used for a sequential hybrid ARQ transmission...
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