30th VNITC Offline Meeting (6/6/2010)

Chương trình:

14h00-15h30: A method to speedup compound searching by grouped similar compounds using the Tanimoto coefficient (Nguyễn Cẩm Ly - Tokyo University)

15h30-17h00: MIMO Network Coding based PHY/MAC Protocol for Replacement of CSMA/CA (Trần Gia Khánh - Tokyo Institute of Technology)

Đăng kí tại đây.

1. Thời gian:
Từ 14h, ngày chủ nhật, 6 tháng 6 năm 2010.

2. Địa điểm:
Phòng 101B, tầng 10, nhà New Faculty of Engineering Bldg.2 Hongo Campus, Đại học Tokyo.
URL Map: http://www.u-tokyo.ac.jp/campusmap/cam01_04_18_e.html

3. Nội dung phát biểu:

3.1 Nguyễn Cẩm Ly (M1 - Tokyo University)

3.1.1 Title: A method to speedup compound searching by grouped similar compounds using the Tanimoto coefficient

3.1.2 Outline: Searching for similar chemical compounds is a key element in Bio-informatics. Nowadays, as the volume of compound databases is rapidly increasing, accelerating the compound search is crucial. We propose a method to speed up the search by grouped similar compounds (clustering) that uses a compound structure key and Tanimoto coefficient.

3.1.3 Keywords:
- chemical compound database
- compound searching
- clustering
- compound structure key
- Tanimoto coefficient

3.2 Trần Gia Khánh (Post Doc - Tokyo Institute of Technology)

3.2.1 Title: MIMO Network Coding based PHY/MAC Protocol for Replacement of CSMA/CA

3.2.2 Abstract: Backbone wireless mesh network has been attracted much of attention due to a wide range of its application such as smart utility network, sensor network, etc. The employment of CSMA/CA based MAC protocols to mesh network, however, reveals low resource utilization and high latency due to problems of hidden terminal, exposed terminal, information asymmetry etc. Several alternative protocols including directional MAC, multichannel MAC only provide marginal improvement. We propose a cross-layer design employing multiple antenna techniques and network coding called MIMO network coding. Owing to multiple access interference cancellation ability of MIMO, bi-directional flow multiplexing capability of network coding in combination with an efficient channel access scheme of TDMA/TDD, MIMO two-way relay provides significantly high end-to-end capacity. We consider MIMO network coding as an alternative PHY/MAC protocol of CSMA/CA. A network simulator employing MIMO network coding is developed and more details on packet relaying mechanism of the algorithm are presented. We show that MIMO network coding achieves significant network performance improvement with respect to CSMA/CA mesh networks.