Open Access Open Access  Restricted Access Subscription Access

Prominent Causes of Poor Quality of Service in Network Communication

Ijaz Ali Shoukat,
Abdullah Al-Dhelaan,
Mohsin Iftikhar,
Mznah Al-Rodhaan,

Abstract


Capacity overflows, heterogeneous delay and packet losses are the resultant factors of network congestion and overloading. Such sort of dominant factors degrade the Quality of Service (QoS) and finally the network enters in a state of communication cut off. In this article, firstly we have discussed salient foundations of poor QoS such as network congestion, link overloading, routing metrics, design conflicts, server-side-scripting, denial of service attacks, RFC congestion schemes and weakness of existing TCP protocols with comparative analysis. Secondly, we have contributed some experimental observations against social, non-social and multimedia networks to realize QoS through comparison of response latencies and transmission errors. The scope of this study is to identify maximum causes of poor QoS in order to judge the effect of loaded and normal network conditions upon end-to-end service quality in both experimental and theoretical prospective. Such sort of comprehensive effort has not been attempted yet in such capacity, as we have conducted in this article. Presented analysis and experimental observations are significantly noticeable to evolve forthcoming congestion control policies.

Keywords


Network congestion; Quality of service; Traffic overloading; Transmission failures

Citation Format:
Ijaz Ali Shoukat, Abdullah Al-Dhelaan, Mohsin Iftikhar, Mznah Al-Rodhaan, "Prominent Causes of Poor Quality of Service in Network Communication," Journal of Internet Technology, vol. 18, no. 3 , pp. 533-549, May. 2017.

Full Text:

PDF

Refbacks

  • There are currently no refbacks.





Published by Executive Committee, Taiwan Academic Network, Ministry of Education, Taipei, Taiwan, R.O.C
JIT Editorial Office, Library and Information Center, National Dong Hwa University
No. 1, Sec. 2, Da Hsueh Rd. Shoufeng, Hualien 97401, Taiwan, R.O.C.
Tel: +886-3-931-7017  E-mail: jit.editorial@gmail.com