Performance evaluation of packet aggregation scheme for VoIP service in wireless multi-hop network

Jung, Ji-Young; Kang, Hyunsik; Lee, Jung-Ryun

doi:10.1016/j.adhoc.2012.11.006

Cited by 8 publications

(6 citation statements)

References 8 publications

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“…where R-factor is the resulting voice quality, which ranges from 0 to 100; 𝑅 0 is the initial signal-to-noise ratio; 𝐼 𝑠 is the simultaneous impairment factor; 𝐼 𝑑 is the mouth-to-air delay; 𝐼 𝑒 is the equipment impairment factor, which includes codecs, packet loss, and end-to-end delay; and A is the advantage factor, which can be acquired through specific applications to improve voice quality [24,25].…”

Section: Codecsmentioning

confidence: 99%

“…In [25], the authors investigated the effect of packet aggregation variation on VoIP QoS using an R-factor that consisted of end-to-end delay, packet loss, Id, Ie, and energy consumption of mobile nodes within an ad hoc network. This investigation revealed that an optimum amount of VoIP packets should be aggregated with the packets; this process is applicable irrespective of wireless channel conditions.…”

Section: Related Workmentioning

confidence: 99%

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Novel Method of Improving Quality of Service for Voice over Internet Protocol Traffic in Mobile Ad Hoc Networks

Shakir

Alsaqour

Abdelhaq

et al. 2022

Int. j. commun. netw. inf. secur.

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In recent years, the application of Mobile Ad-hoc Network (MANET) with Voice over Internet Protocol (VoIP) has been increased. However, the level of Quality of Service (QoS) for VoIP traffic in MANET, while there is no infrastructure, will reduce when dealing with a large number of calls. In this type of dynamic environment, the developing of a new infrastructure becomes more costly and time-consuming. In this paper, we proposed an efficient method, called the Quality of Service-Nearest Neighbor (QoS-NN), to improve the QoS level for VoIP in order to manage the huge number of calls over MANET network. We utilized the Ad-hoc On-demand Distance Vector (AODV) protocol as the underlying routing protocol to implement our proposed method. We evaluated the proposed QoS-NN method using Network Simulator version 2 (NS2). The performance of the proposed QoS-NN method was compared with Lexicographic order method. The comparison was evaluated in terms of R-factor, end-to-end delay, packet loss ratio, and packet delivery ratio performance metrics. In addition, the proposed method evaluated under different network parameters such as VoIP CODECs, node mobility speed, number of calls and number of nodes. The comparison results indicate that the proposed QoS-NN outperform the Lexicographic order method.

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Section: Codecsmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Novel Method of Improving Quality of Service for Voice over Internet Protocol Traffic in Mobile Ad Hoc Networks

Shakir

Alsaqour

Abdelhaq

et al. 2022

Int. j. commun. netw. inf. secur.

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show abstract

“…In addition, the route between the two hops limits the maximum size of mux-pkt. In particular, a high-quality route carries large mux-pkt, and a low-quality route carries small mux-pkt, thereby improving the bandwidth utilization of multiplexing methods [14], [29].…”

Section: Hop-to-hop Multiplexingmentioning

confidence: 99%

“…However, this approach achieves lower bandwidth utilization than the previous approach does because packet multiplexing occurs at the source hop only. In addition, the mux-pkt size is limited by the weakest link; hence, the bandwidth utilization of multiplexing methods is degraded [14], [29].…”

Section: End-to-end Multiplexingmentioning

confidence: 99%

“…The combination can be achieved by forcing multiplexing delay only on the ingress hop and using the natural queuing delay for multiplexing at the intermediate hops. Specifically, the additional delay is imposed only at the ingress/egress node as in the end-to-end methods, and multiplexing is conducted at each hop to achieve bandwidth utilization close to that in hop-to-hop methods [14], [29], [35]. A robust and efficient multiplexing method can be designed when these issues are considered.…”

Section: Guidelines and Potential Researchmentioning

confidence: 99%

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Multiplexing VoIP Packets over Wireless Mesh Networks: A Survey

2016

KSII TIIS

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Wireless mesh networks (WMNs) have been increasingly applied in private and public networks during the last decade. In a different context, voice over IP (VoIP) has emerged as a new technology for making voice calls around the world over IP networks and is replacing traditional telecommunication systems. The popularity of the two technologies motivated the deployment of VoIP over WMNs. However, VoIP over WMNs suffers from inefficient bandwidth utilization because of two reasons: i) attaching 40-byte RTP/UDP/IP header to a small VoIP payload (e.g., 10 bytes) and ii) 841 µs delay overhead of each packet in WMNs. Among several solutions, VoIP packet multiplexing is the most prominent one. This technique combines several VoIP packets in one header. In this study, we will survey all the VoIP multiplexing methods over WMNs. This study provides a clear understanding of the VoIP bandwidth utilization problem over WMNs, discusses the general approaches in which packet multiplexing methods could be performed, provides a detailed study of present multiplexing techniques, shows the aspects that hinder the VoIP multiplexing methods, discusses the factors affected by VoIP multiplexing schemes, shows the merits and demerits of different multiplexing approaches, provides guidelines for designing a new improved multiplexing technique, and provides directions for future research. This study contributes by providing guidance for designing a suitable and robust method to multiplex VoIP packets over WMNs.

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Extending AES with DH Key-Exchange to Enhance VoIP Encryption in Mobile Networks

Zaghal¹,

Salah²,

jabali³

2018

Advances in Intelligent Systems and Computing

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Performance evaluation of packet aggregation scheme for VoIP service in wireless multi-hop network

Cited by 8 publications

References 8 publications

Novel Method of Improving Quality of Service for Voice over Internet Protocol Traffic in Mobile Ad Hoc Networks

Novel Method of Improving Quality of Service for Voice over Internet Protocol Traffic in Mobile Ad Hoc Networks

Multiplexing VoIP Packets over Wireless Mesh Networks: A Survey

Extending AES with DH Key-Exchange to Enhance VoIP Encryption in Mobile Networks

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