| 采用双层子网动态虚通道的片上网络 |
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| 引用本文： | 凌翔,沈慧,汪凡,胡剑浩.采用双层子网动态虚通道的片上网络[J].电子科技大学学报（自然科学版）,2013,42(2):193-199. |
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| 作者姓名： | 凌翔 沈慧 汪凡 胡剑浩 |
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| 作者单位： | 1.电子科技大学通信抗干扰技术国家级重点实验室 成都 611731 |
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| 基金项目： | 国家科技重大专项(2011ZX03003-003-04,2013ZX03003015) |
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| 摘 要： | 通过片上网络(NoC)连接多个处理器核是一种新的片上系统结构,其核间的数据交换机制是影响数据传输服务质量(QoS)的关键要素之一。在虚通道数目受限的情况下,提出了动态虚通道分配和双层子网相结合的交换单元结构。动态分配虚通道技术可以有效提高建链成功率;双层子网结构分散了业务数据流,避免数据传输拥塞,减小了数据包传输延时。仿真显示两种技术的结合,在不增加硬件资源开销的情况下,可以为各种业务等级的数据包传输提供良好的QoS保障。
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| 关 键 词： | 拥塞控制 多核互联网络 片上网络 服务质量保障 交换电路 虚通道 |
| 收稿时间： | 2011-09-05 |
Network-on-Chip Based on Dualnet Dynamic Virtual Channel Strategy |
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| Affiliation: | 1.National Key Laboratory of Science and Technology on Communications,University of Electronic Science and Technology of China Chengdu 611731 |
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| Abstract: | Network-on-chip (NoC) is a new interconnection structure which connects multiprocessors by network-based infrastructure. The data switching strategy between multiprocessors has great influence on the quality of service (QoS) of data transmission. A new switching structure which combines the dynamic virtual channels (VC) allocation and the dual-subnets infrastructure is proposed. The dynamic VC allocation is applied in order to increase the success-connection probability; while the dual-subnets infrastructure disperses data flows into XY-subnet and YX-subnet, avoids transmission congestion, and thus reduces packet transmission delay. The simulation results show that this Dyn-Dualnet-QoS strategy can provide great QoS guarantee for various levels of packet transmissions. |
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