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- Mihaela Cardei, Ding-Zhu Du
- Wireless Networks
- 2005

A critical aspect of applications with wireless sensor networks is network lifetime. Battery-powered sensors are usable as long as they can communicate captured data to a processing node. Sensing andâ€¦ (More)

- Xiuzhen Cheng, Ding-Zhu Du, Lusheng Wang, Baogang Xu
- Wireless Networks
- 2008

This paper addresses the following relay sensor placement problem: given the set of duty sensors in the plane and the upper bound of the transmission range, compute the minimum number of relayâ€¦ (More)

- Donghui Chen, Ding-Zhu Du, Xiaodong Hu, Guohui Lin, Lusheng Wang, Guoliang Xue
- J. Global Optimization
- 2000

Given n terminals in the Euclidean plane and a positive constant, find a Steiner tree interconnecting all terminals with the minimum number of Steiner points such that the Euclidean length of eachâ€¦ (More)

- Yingshu Li, My T. Thai, Feng Wang, Chih-Wei Yi, Peng-Jun Wan, Ding-Zhu Du
- Wireless Communications and Mobile Computing
- 2005

Since no fixed infrastructure and no centralized management present in wireless networks, a Connected Dominating Set (CDS) of the graph representing the network is widely used as a virtual backbone.â€¦ (More)

- Ding-Zhu Du, Frank K. Hwang
- Algorithmica
- 1992

LetP be a set ofn points on the euclidean plane. LetL s(P) andL m (P) denote the lengths of the Steiner minimum tree and the minimum spanning tree onP, respectively. In 1968, Gilbert and Pollakâ€¦ (More)

The idea of virtual backbone routing for ad hoc wireless networks is to operate routing protocols over a virtual backbone. One purpose of virtual backbone routing is to alleviate the seriousâ€¦ (More)

- Maggie Xiaoyan Cheng, Jianhua Sun, Manki Min, Ding-Zhu Du
- IPCCC
- 2003

This paper considers the problem of broadcasting in large ad hoc wireless networks. We focus on the energyeflcient broadcast routing in stationary networks and consider the case where wireless nodesâ€¦ (More)

- My T. Thai, Feng Wang, Dan Liu, Shiwei Zhu, Ding-Zhu Du
- IEEE Transactions on Mobile Computing
- 2007

Since there is no fixed infrastructure or centralized management in wireless ad hoc networks, a Connected Dominating Set (CDS) has been proposed to serve as a virtual backbone. The CDS of a graphâ€¦ (More)

- Donghyun Kim, Yiwei Wu, Yingshu Li, Feng Zou, Ding-Zhu Du
- IEEE Transactions on Parallel and Distributedâ€¦
- 2009

Connected Dominating Sets (CDSs) can serve as virtual backbones for wireless networks. A smaller virtual backbone incurs less maintenance overhead. Unfortunately, computing a minimum size CDS isâ€¦ (More)

- Jieun Yu, Heejun Roh, Wonjun Lee, Sangheon Pack, Ding-Zhu Du
- 2010 Proceedings IEEE INFOCOM
- 2010

Cooperative Communication (CC) is a technology that allows multiple nodes to simultaneously transmit the same data. It can save power and extend transmission coverage. However, prior researchâ€¦ (More)