Journal of Applied Sciences1812-56541812-5662Asian Network for Scientific Information10.3923/jas.2005.1523.1527Shamim HossainMohammodM. Anwar Hossain9200559The recent QoS model of the Differentiated Services (DiffServ) approach including premium service, assured service and best effort service in intended for usage in wire line networks and Internet. However, cellular networks are popular and becoming more popular within the years to come. So there is a need for surveying the recent research work on QoS model for DiffServ in cellular networks. One of the QoS aware crucial problems is handover problem. Another problem of cellular network includes low channel capacity i.e. low bandwidth and classification of packets within a flow.]]>Chamlers, D. and M. Solman,1998Mahadevan, I. and K.M. Sivalingam,2001Xiao, X. and L.M. Ni,1999Liu, T.K. and J.A. Silvester,1998Mahadevan, I. and K.M. Sivalingam,1998Ramjee, R., R. Nagarajan and D. Towsley,1995Um, H.Y., S.Y. Lim and J.W. Ahn,1998Marques, V., R.L. Aguir, N. Chaher, A. Cuevas and J.I. Moreno,2003Semeria, C. and J.W. Stewart,2001Blake, S., D. Black, M. Carlson, E. Davies, Z. Wang and W. Weiss,1998Stojmenovic,2002Sadeghi, B. and E.W. Knightly,2000Blessand, R. and K. Wehrle,1999Yeom, I. and A.L.N. Reddy,1999