Title	Comparative Study of Existing and Forthcoming WLAN Technologies
Author	Imran Khan, Haque Nawaz, M. M. Rind, Kamlesh Kumar, M. A. Chahajro, Abdullah Mailto
Citation	Vol. 18  No. 4  pp. 101-108
Keywords	Wi-Fi, Li-Fi, WLAN, Technology

Title	Hybrid heuristic algorithm for load balancing in the cloud
Author	Hamza Rahhali and Mostafa Hanoune
Citation	Vol. 18  No. 4  pp. 109-115
Keywords	Hybrid heuristic, load balancing, Cloud computing, Virtual machine.

Title	State Feedback Controller Based on Bond Graph Observers
Author	Attafi Rim and Zanzouri Nadia
Citation	Vol. 18  No. 4  pp. 116-125
Keywords	Stringing machine, state feedback controller, BG tool, LMI.

Title	Unit Selection Model in Arabic Speech Synthesis
Author	Nedhal A. Al-Saiyd and Mohammad Hijjawi
Citation	Vol. 18  No. 4  pp. 126-131
Keywords	Arabic Speech, Unit Selection, Segmentation, Syllable, Speech Analysis.