ISSN 2708-244X
 

Original Article 


Design & Simulation of Voice QoS Performance in Data Network Congestion for M/D/1 Queuing Model

Mohamed A. Alkelsh, Walid K A Hasan, Emhamed A. Adaba, Albahlool M. Abood, Johnson Agbinya.

Abstract
Voice in IP networks is transmitted as packets over IP (VoIP), the voice signals are converted to IP packets after being digitized and compressed for transmission. However, some packets can be missed in their way to the receiving side, due to network congestion. The loss of these packets degrades the speech quality in the listener side at VoIP system transmission. Since voice is transmitted is real time, the receiver cannot request a retransmission for any lost packets. Voice and data multiplexing in VoIP network always face problems when huge TCP traffic is transmitted resulting the voice packet to be stuck in the network during congestion. Therefore, VoIP packets will be delayed. Since delay and loss are the main parameters that affect the quality of a voice signal in a VoIP network.
This paper presents a design and a simulation study of voice and data integration in a VoIP network and analyses which scenario will suite the best performance for voice packets in traffic congestion to have a high voice quality rating when using a single data TCP source and a multiple TCP sources when multiplexed with a UDP voice source. This is accomplished by using NS-2 network simulator (version 2), and M/D/1 queue type with various queuing systems such as First in First out (FIFO), Fair queue (FQ) and Deficit Round Robin (DRR), which represent the technique mechanism to serve voice and data packets in a queueing system. Then loss and delay are measured for each scenario to determine the quality of voice.

Key words: VOIP, TCP, UDP FIFO, FQ, DRR


 
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How to Cite this Article
Pubmed Style

Mohamed A. Alkelsh, Walid K A Hasan, Emhamed A. Adaba, Albahlool M. Abood, Johnson Agbinya. Design & Simulation of Voice QoS Performance in Data Network Congestion for M/D/1 Queuing Model. AJAS. 2021; 2(1): 37-45.


Web Style

Mohamed A. Alkelsh, Walid K A Hasan, Emhamed A. Adaba, Albahlool M. Abood, Johnson Agbinya. Design & Simulation of Voice QoS Performance in Data Network Congestion for M/D/1 Queuing Model. http://www.albahitjas.com/?mno=50681 [Access: January 31, 2021].


AMA (American Medical Association) Style

Mohamed A. Alkelsh, Walid K A Hasan, Emhamed A. Adaba, Albahlool M. Abood, Johnson Agbinya. Design & Simulation of Voice QoS Performance in Data Network Congestion for M/D/1 Queuing Model. AJAS. 2021; 2(1): 37-45.



Vancouver/ICMJE Style

Mohamed A. Alkelsh, Walid K A Hasan, Emhamed A. Adaba, Albahlool M. Abood, Johnson Agbinya. Design & Simulation of Voice QoS Performance in Data Network Congestion for M/D/1 Queuing Model. AJAS. (2021), [cited January 31, 2021]; 2(1): 37-45.



Harvard Style

Mohamed A. Alkelsh, Walid K A Hasan, Emhamed A. Adaba, Albahlool M. Abood, Johnson Agbinya (2021) Design & Simulation of Voice QoS Performance in Data Network Congestion for M/D/1 Queuing Model. AJAS, 2 (1), 37-45.



Turabian Style

Mohamed A. Alkelsh, Walid K A Hasan, Emhamed A. Adaba, Albahlool M. Abood, Johnson Agbinya. 2021. Design & Simulation of Voice QoS Performance in Data Network Congestion for M/D/1 Queuing Model. Albahit journal of applied sciences, 2 (1), 37-45.



Chicago Style

Mohamed A. Alkelsh, Walid K A Hasan, Emhamed A. Adaba, Albahlool M. Abood, Johnson Agbinya. "Design & Simulation of Voice QoS Performance in Data Network Congestion for M/D/1 Queuing Model." Albahit journal of applied sciences 2 (2021), 37-45.



MLA (The Modern Language Association) Style

Mohamed A. Alkelsh, Walid K A Hasan, Emhamed A. Adaba, Albahlool M. Abood, Johnson Agbinya. "Design & Simulation of Voice QoS Performance in Data Network Congestion for M/D/1 Queuing Model." Albahit journal of applied sciences 2.1 (2021), 37-45. Print.



APA (American Psychological Association) Style

Mohamed A. Alkelsh, Walid K A Hasan, Emhamed A. Adaba, Albahlool M. Abood, Johnson Agbinya (2021) Design & Simulation of Voice QoS Performance in Data Network Congestion for M/D/1 Queuing Model. Albahit journal of applied sciences, 2 (1), 37-45.





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