Title	Channel Estimation for MIMO OFDM beamforming Systems
Author	Najoua Achoura, Ridha Bouallegue
Citation	Vol. 8  No. 3  pp. 106-111
Keywords	MIMO, OFDM, beamforming, CSI, estimation

Title	Analysis and Estimation of Playout Delay in VoIP Communications
Author	F?bio Sakuray, Robinson S. V. Hoto, Leonardo S. Mendes
Citation	Vol. 8  No. 3  pp. 98-105
Keywords	Playout Delay, VoIP, Computer Network, Buffer Delay

Title	A Realization of the Persistence of Petri Net State Spaces using XML Data Deployment
Author	Katsumi Wasaki
Citation	Vol. 8  No. 3  pp. 92-97
Keywords	System Reliability, Petri Nets, State Space Persistency and XML

Title	Opto-Electro-Thermal Model for MQW Laser Including Self-Heating and Chirping effects
Author	M.Dehghan, V.Ahmadi
Citation	Vol. 8  No. 3  pp. 88-91
Keywords	Self heating, frequency chirp, MQW laser