• Publications
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Vertex Cover: Further Observations and Further Improvements
Recently, there has been increasing interest and progress in lowering the worst-case time complexity for well-known NP-hard problems, particularly for the Vertex Cover problem. In this paper, newExpand
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Rendezvous design algorithms for wireless sensor networks with a mobile base station
Recent research shows that significant energy saving can be achieved in wireless sensor networks with a mobile base station that collects data from sensor nodes via short-range communications.Expand
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Performance evaluation of scheduling in IEEE 802.16 based wireless mesh networks
IEEE 802.16 employs TDMA (Time Division Multiple Access) as the access method and the policy for selecting scheduled links in a given time slot will definitely impact the system performance. WeExpand
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Adaptive location updates for mobile sinks in wireless sensor networks
Mobile sinks can be used to balance energy consumption for sensor nodes in Wireless Sensor Networks (WSNs). Mobile sinks are required to inform sensor nodes about their new location informationExpand
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Centralized Scheduling and Channel Assignment in Multi-Channel Single-Transceiver WiMax Mesh Network
The IEEE 802.16a standard defines WiMax mesh network, using the base station (BS) as a coordinator for the centralized scheduling. This paper proposes a centralized scheduling algorithm for WiMaxExpand
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Vertex Cover: Further Observations and Further Improvements
Recently, there have been increasing interests and progresses in lowering the worst case time complexity for well-known NP-hard problems, in particular for the VERTEX COVER problem. In this paper,Expand
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Rendezvous Planning in Wireless Sensor Networks with Mobile Elements
Recent research shows that significant energy saving can be achieved in wireless sensor networks by using mobile elements (MEs) capable of carrying data mechanically. However, the low movement speedExpand
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Rendezvous Planning in Mobility-Assisted Wireless Sensor Networks
Research shows that significant energy saving can be achieved in wireless sensor networks by using mobile elements (MEs) capable of carrying data mechanically. However, the low movement speed of MEsExpand
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VC-MAC: A Cooperative MAC Protocol in Vehicular Networks
Vehicular networks are experiencing rapid growth and evolution under the increasing demand of vehicular traffic management and ubiquitous network connectivity. In particular, the amount ofExpand
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Aggregation Aware Spectrum Assignment in Cognitive Ad-hoc Networks
Contiguous spectrum assignment generates many small spectrum fragments that cannot be fully utilized, which leads to low spectrum utilization. With the development of advanced wireless radioExpand
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