检索结果-南通市图书馆

Enhancing bandwidth utilization of IP Telephony Over IPv6 Networks

Computer Systems Science & Engineering 2023年第2期44卷 1039-1049页

作者： Hani Al-Mimi Yousef Alrabanah Mosleh M.Abualhaj Sumaya N.Al-khatib Al-Zaytooanh University of Jordan Faculty of Science and Information TechnologyDepartment of CybersecurityAmman11733Jordan Al-Ahliyya Amman University Faculty of Information TechnologyDepartment of Software EngineeringAmman19328Jordan Al-Ahliyya Amman University Faculty of Information TechnologyDepartment of Networks and Information SecurityAmman19328Jordan

The demand for the telecommunication services,such as IP telephony,has increased dramatically during the COVID-19 pandemic lockdown.IP tele-phony should be enhanced to provide the expected quality.One of the issues that should be investigated in IP telephony is bandwidth utilization.IP telephony pro-duces very small speech samples attached to a large packet header.The header of the IP telephony consumes a considerable share of the bandwidth allotted to the IP telephony.This wastes the network's bandwidth and inﬂuences the IP telephony quality.This paper proposes a mechanism(called Smallerize)that reduces the bandwidth consumed by both the speech sample and the header.This is achieved by assembling numerous IP telephony packets in one header and use the header'sﬁelds to carry the speech sample.Several metrics have been used to measure the achievement Smallerize mechanism.The number of calls has been increased by 245.1%compared to the typical mechanism.The bandwidth saving has also reached 68%with the G.28 codec.Therefore,Smallerize is a possible mechanism to enhance bandwidth utilization of the IP telephony.

关键词： –IP telephony codec bandwidth utilization IPv6

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Dynamic bandwidth allocation algorithm for full-band utilization

引用

Journal of Systems Engineering and Electronics 2006年第1期17卷 223-229页

作者： Han Guodong Wang Hui Wu Jiangxing Information Engineering Univ. National Digital Switching System Engineering and Technological Research Center Zhengzhou 450002 P.R. China Coll. of Management Tianjin Univ. Tianjin 300072 P. R. China

To improve and optimize the bandwidth utilization for multi-service packet transporting system, a kind of Dynamic Full bandwidth Utilized （DFBU） allocation algorithm allowing a single link to use far beyond its fair share bandwidth is presented. Three important parameters as the bound on max and minimum bandwidth, the maximum packet delay and the minimum bandwidth utilization are discussed and analyzed. Results of experiments show that the DFBU-algorithm is capable of making a single link in the system use all the spare bandwidth （up to full-bandwidth） while the performance of fairness and QoS requirement is still guaranteed.

关键词： full-band utilize dynamic allocation algorithm fairness bandwidth utilization

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

An Analysis on bandwidth utilization and Traffic Pattern for Network Security Management

An Analysis on Bandwidth Utilization and Traffic Pattern for...

引用

2011 International Conference on Future Information Technology (ICFIT 2011)

作者： Murizah Kassim Hafizoah Kassim Faculty of Electrical Engineering Universiti Teknologi MARA 40450 UiTM Shah Alam Selangor Malaysia Centre for Modern Languages and Human Sciences Universiti Malaysia Pahang 26500 Gambang Kuantan Pahang

This paper presented an analysis on network bandwidth utilizations and traffic pattern in an organization. It presents pattern of network traffic used of bandwidth utilization and network trends properties. Internet traffics are analyzed and the traffic pattern behavior is identified. Network Protocol Analyzer is used as a centre agent and has been setup and plug at the main entrance of internet traffic flow from outside world into the inside network of the organization. Valuable information such as traffic pattern on category trends, protocols trends, internet traffic and bandwidth used is captured. Then all traffics flow from the internet to the inside network is filtered according to the identified policies. Both traffic filtered and unfiltered traffic then are compared and analyzed in bandwidth throughput, category trends, protocols trend, risk class trends and type of internet applications used. Research has presented all the data captured in figures and it has been analyzed into a few categories. This research has successfully gathered and analyzed the traffic flows, identified the network trends and bandwidth utilization. bandwidth shaping also has been successfully done in prioritizing the applications used.

关键词： bandwidth utilization Traffic Pattern Security Network Agent Network Management bandwidth Performance.

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Survey and Analysis of VoIP Frame Aggregation Methods over A-MSDU IEEE 802.11n Wireless Networks

引用

Computers, Materials & Continua 2021年第2期66卷 1283-1300页

作者： Mosleh M.Abualhaj Abdelrahman H.Hussein Manjur Kolhar Mwaffaq Abu AlHija Al-Ahliyya Amman University AmmanJordan Prince Sattam Bin Abdulaziz University Al-KharjSaudi Arabi

The IEEE 802.11n standard has provided prominent features that greatly contribute to ubiquitous wireless networks.Over the last ten years,voice over IP(VoIP)has become widespread around the globe owing to its low-cost or even free call rate.The combination of these technologies(VoIP and wireless)has become desirable and inevitable for organizations.However,VoIP faces a bandwidth utilization issue when working with 802.11 wireless networks.The bandwidth utilization is inefficient on the grounds that(i)80 bytes of 802.11/RTP/UDP/IP header is appended to 10–730 bytes of VoIP payload and(ii)765μs waiting intervals follow each 802.11 VoIP frame.Without considering the quality requirements of a VoIP call,be including frame aggregation in the IEEE 802.11n standard has been suggested as a solution for the bandwidth utilization issue.Consequently,several aggregation methods have been proposed to handle the quality requirements of VoIP calls when carried over an IEEE 802.11n wireless network.In this survey,we analyze the existing aggregation methods of VoIP over the A-MSDU IEEE 802.11n wireless standard.The survey provides researchers with a detailed analysis of the bandwidth utilization issue concerning the A-MSDU 802.11n standard,discussion of the main approaches of frame aggregation methods and existing aggregation methods,elaboration of the impact of frame aggregation methods on network performance and VoIP call quality,and suggestion of new areas to be investigated in conjunction with frame aggregation.The survey contributes by offering guidelines to design an appropriate,reliable,and robust aggregation method of VoIP over 802.11n standard.

关键词： VoIP VoIP frame aggregation IEEE 802.11n bandwidth utilization A-MSDU A-MPDU

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Down to Zero Size of VoIP Packet Payload

引用

Computers, Materials & Continua 2021年第7期68卷 1271-1283页

作者： Mosleh M.Abualhaj Qusai Y.Shambour Abdelrahman H.Hussein Qasem M.Kharma Faculty of Information Technology Al-Ahliyya Amman UniversityAmmanJordan

Voice over Internet Protocol(VoIP)is widely used by companies,schools,universities,and other institutions.However,VoIP faces many issues that slow down its propagation.An important issue is poor utilization of the VoIP service network bandwidth,which results from the large header of the VoIP packet.The objective of this study is to handle this poor utilization of the network bandwidth.Therefore,this study proposes a novel method to address this large header overhead problem.The proposed method is called zero size payload(ZSP),which aims to reemploy and use the header information(fields)of the VoIP packet that is dispensable to the VoIP service,particularly the unicast IP voice calls.In general,these fields are used to carry the VoIP packet payload.Therefore,the size of the payload is reduced to save bandwidth.The performance estimation results of the proposed ZSP method showed a considerable improvement in the bandwidth utilization of the VoIP service.For example,the saved bandwidth in the tested scenario with the G.723.1,G.729,and LPC codecs reached 32%,28%,and 26%respectively.

关键词： Voice over internet protocol VoIP protocols bandwidth utilization

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Research on optimization for static segment of in-vehicle Flex Ray network protocol under consideration of Slot-Multiplexing

Research on optimization for static segment of in-vehicle Fl...

引用

2015全国嵌入式仪表及系统技术会议

作者： LIU Ya-ni ZHANG Feng-deng TONG Chang-sheng University of Shanghai for Science and Technology

In order to improve bandwidth utilization and real time performance of static segment of Flex Ray communication protocol, we had studied the scheduling problem of periodic signals in the static segment, and proposed a frame-packing algorithm based on multiple period, which is formulated as generalized integer linear programming with lower and upper bounds of the size of static slot, then the optimal message set and optimal slot length of static segment are offered. To allocate a minimum number of frame IDs in the static segment, the optimal schemes without jitter of static segment has been put forward under consideration of slot-multiplexing. Numerical experiments verify the reasonableness of optimization.

关键词： bandwidth utilization Flex Ray static segment slot-multiplexing

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：