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ICPR
2008
IEEE
16 years 1 months ago
A new HMM for on-line character recognition using pen-direction and pen-coordinate features
A new hidden Markov model (HMM) is proposed for on-line character recognition using two typical features, pen-direction feature and pen-coordinate feature. These two features are ...
Yoshinori Katayama, Seiichi Uchida, Hiroaki Sakoe
ICPR
2008
IEEE
16 years 1 months ago
Optimal feature weighting for the continuous HMM
We propose new Continuous Hidden Markov Model (CHMM) structure that integrates feature weighting component. We assume that each feature vector could include different subsets of f...
Oualid Missaoui, Hichem Frigui
GLOBECOM
2007
IEEE
16 years 1 months ago
Opportunistic Access with Random Subchannel Backoff (OARSB) for OFDMA Uplink
Abstract— A distributed medium access control (MAC) algorithm for uplink OFDMA networks under the IEEE 802.16 framework is proposed and analyzed in this work. We present a simple...
Yu-Jung Chang, Feng-Tsun Chien, C. C. Jay Kuo
GLOBECOM
2007
IEEE
16 years 1 months ago
Content-Aware Cooperative Multiple Access Protocol for Packet Speech Communications
— A novel cooperative multiple access protocol for packet speech communications is proposed. Cooperation is achieved through a relay node and by exploiting the silence periods du...
Amr El-Sherif, Andres Kwasinski, Ahmed K. Sadek, K...
GLOBECOM
2007
IEEE
16 years 1 months ago
Cognitive Medium Access: A Protocol for Enhancing Coexistence in WLAN Bands
— In this paper we propose Cognitive Medium Access (CMA), a protocol aimed at improving coexistence with a set of independently evolving WLAN bands. A time-slotted physical layer...
Stefan Geirhofer, Lang Tong, Brian M. Sadler