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Channel Assignment in Wireless Sensor Networks
PhD Qualifying Examination Title: "Channel Assignment in Wireless Sensor Networks" Miss Yanyan Yang Abstract: Wireless sensor networks (WSNs) are featured with low-cost, low-power and multi-functionality, which make WSN-based applications with large scale and dense deployments possible. While traditional ways are to use a single channel among the whole WSN, they cannot work well when the WSN grows larger and denser in that frequent interference and collisions among the WSN decrease the throughput dramatically. To provide higher throughput and to achieve better energy efficiency, how to use the available multiple channels effectively becomes a very attractive issue. In this survey paper, we will firstly list the unique features and challenging requirements for WSNs. Secondly, we will introduce our comprehensive studies on multi-channel availabilities of the sensor nodes. Then we will categorize the current protocols into five classes according to their objectives: interference-free; throughput improvement; data dissemination; application-oriented and co-existence of WSNs and other wireless networks. We will also make a comparative study of these protocols. Finally, we will summarize the paper along with some discussions about possible research issues in the future. Date: Friday, 19 December 2008 Time: 10:30a.m.-12:30p.m. Venue: Room 3588 lifts 27-28 Committee Members: Prof. Lionel Ni (Supervisor) Dr. Qian Zhang (Chairperson) Dr. Lei Chen Dr. Lin Gu **** ALL are Welcome ****