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- Hua Wang, Hong Xu, Shanwen Yi, Zhao Shi
- Expert Syst. Appl.
- 2011

QoS multicast routing is a non-linear combinatorial optimization problem. It tries to find a multicast routing tree with minimal cost that can satisfy constraints such as bandwidth, delay, and delay jitter. This problem is NP-complete. The solution to such problems is often to search first for paths from the source node to each destination node and then… (More)

- Chuangen Gao, Hua Wang, Linbo Zhai, Yanqing Gao, Shanwen Yi
- 2016 IEEE 22nd International Conference on…
- 2016

The energy cost is one of the major concerns for the cloud providers. Virtual machine placement has been demonstrated as an effective method for energy saving. In addition to constraints caused by the physical machine resources such as CPU and memory (PM-constraints), the constraints caused by the network resource such as bandwidth (Net-constraints) are… (More)

- Fangjin Zhu, Xiangxu Meng, Hua Wang, Shanwen Yi
- 2009 IEEE Youth Conference on Information…
- 2009

Large-scale deployment of multicast applications is limited by the number of states that are set in routers for multicast groups. As a new approach to multicast state reduction, aggregated multicast forces multiple multicast groups sharing a common distribution tree. An ant colony optimization algorithm to aggregated multicast is proposed. Inspired by bin… (More)

- Yanqing Gao, Hua Wang, Runshui Zhu, Shanwen Yi, Chuangen Gao, Fuqiang Huang
- 2015 IEEE 17th International Conference on High…
- 2015

Energy saving in the ICT equipments has been an urgent problem recently. Although the average utilization of network is less than 40% most of the time, its energy consumption is almost the same as peak-hour's. In order to minimize energy consumption and improve resource utilization, we aggregate traffic into a network subset and turn off the remaining… (More)

- Shanshan Zhou, Hua Wang, Shanwen Yi, Fangjin Zhu
- ICA3PP
- 2015

- Shuai Liu, Hua Wang, Shanwen Yi, Fangjin Zhu
- ICA3PP
- 2015

- Shanwen Yi, Hua Wang, Rui Zhang
- 2012 IEEE 14th International Conference on High…
- 2012

IP multicast faces a serious state scalability problem when there are large numbers of groups in the network. Aggregated Multicast has been proposed as a novel solution to solve this problem, in which multiple groups shared one aggregated tree, so as to reduce the multicast forwarding states. In this paper, we propose a Ant Colony Optimization Algorithm for… (More)

- Chuangen Gao, Hua Wang, Fangjin Zhu, Linbo Zhai, Shanwen Yi
- ICA3PP
- 2015

- Guohong Kong, Hua Wang, Fuqiang Huang, Shanwen Yi, Yaqing Wang
- 2013 IEEE 10th International Conference on High…
- 2013

With the widespread of internet deployment and the increase of the users, energy consumption in wired network such as in the data center network, backbone computer network, financial network and so on, has become the main topic concerned in the industry and academic filed. However, energy efficiency is not an easy problem in wired network owing to the… (More)

- Shanwen Yi, Hua Wang, Xibo Yao, Chuangen Gao, Linbo Zhai
- 2016 IEEE 18th International Conference on High…
- 2016

Software-Defined Network (SDN) allows a centralized controller to globally plan packets forwarding according to the operator's objectives. It may require more forwarding rules, and multi-path routing which is allowed in SDN to improve network utilization and throughput means more forwarding rules. However, the forwarding table in TCAM-based SDN switch is an… (More)