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基于多跳D2D转发的簇内数据共享方案 被引量：5

Data Sharing Scheme Based on Multi-hop Device-to-Device(D2D)Forwarding
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摘要 为提高簇内数据分发效率,可优先选择信道质量良好、可实现较高数据速率的D2D链路,于是提出了多跳D2D转发方案。该方案根据预先设定的数据速率阈值和D2D链路质量,自适应选择最优的中继、路由和转发跳数,提高了时频资源的利用率。逐步深入地给出了3个阈值的设定规则,并推导了对应算法的资源成本表达式。仿真结果表明,3个算法的资源效率依次得到改善,其中优化速率算法与现有单跳传输方案相比获得了良好的性能。 The D2D links with good quality and high achievable data rates can be preferentially selected to improve the efficiency of data dissemination in a cluster. Therefore, a multi-hop D2D data forwarding scheme was induced. The proposed scheme can adaptively select the proper relays, routing and hop count according to the pre-defined data rate threshold and D2D links quality. In the paper, three rules were designed to set the threshold, and the formulas of resource cost for the corresponding algorithms were derived. Simulation results show that the three algorithms gradually gain an improvement of resource utilization and the best of them achieves a significant performance compared to the existing single-hop schemes.
作者 王俊义 巩志帅 符杰林 仇洪冰
机构地区 桂林电子科技大学认知无线电与信息处理重点实验室 桂林电子科技大学广西信息科学实验中心
出处 《计算机科学》 CSCD 北大核心 2015年第8期124-127,共4页 Computer Science
基金 国家自然科学基金(61261017 61172054 61362006 61371107) 广西自然科学基金(2013GXNSFAA019334) 广西无线宽带通信与信号处理重点实验室基金(11107) 广西信息科学实验中心基金(20130310)资助
关键词 蜂窝网络 D2D 多跳 数据转发 资源效率 Cellular network, D2D, Multi-hop, Data forwarding, Resource efficiency
分类号 TN929.5 [电子电信—通信与信息系统]
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参考文献10

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二级参考文献49

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共引文献32

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计算机科学
2015年 第8期

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