On the voice-data integration in third generation wireless access communication networks

2010 ◽  
Vol 5 (1) ◽  
pp. 11-18 ◽  
Author(s):  
Michael Paterakis ◽  
Allan C. Cleary
Author(s):  
Aigul Ospanovna Dauitbayeva ◽  
Elmira Nurlanovna Tulegenova ◽  
Sapar Omir ◽  
Mukhtar Kozhan

Nowadays, it is important for users to know how to contact a corporate information system. There is a need for broadband connection, whether it’s fixed line or Wi-Fi, as it’s not rare for users to work on the road. At the moment, virtual technologies are widely popular, they have a high place in modern companies. Because they allow the voice server to communicate to one workplace. It does not require staff always to keep up-to-date with the Service, and there’s no need to be there, so use remote access. Many institutions have been fixed or fixed through a mobile connection that ensures optimal connection of mobile workers through the terminal. They work with voice data transmission services. It ensures that employees are always in touch.


2017 ◽  
Vol 4 (2) ◽  
pp. 151-163 ◽  
Author(s):  
Dionysios Tafiadis ◽  
◽  
Georgios Tatsis ◽  
Nausica Ziavra ◽  
Eugenia I. Toki

Author(s):  
Guan-Hsiung Liaw et al.

In 802.11 Wireless Mesh Network (WMN), bandwidth will be wasted much for transferring VoIP flows since each voice frame must contain relatively large amount of protocol data. “Packet Aggregation” mechanism can be applied to merge the voice data of multiple VoIP flows into one frame for transmission. It reduces the waste on bandwidth and increases the maximum number of successful VoIP calls. In addition, the mechanism “MCF controlled channel access” (MCCA) defined in 802.11 standard can be used to obtain better QoS than adopting default EDCA mechanism. In MCCA, mesh stations which wants to transfer VoIP flows can reserve time intervals of the medium for transmission and this reservation will be advertised to their neighbors. It is why MCCA causes less medium contentions than EDCA. In this paper, a mechanism to transfer VoIP flows in IEEE 802.11 WMN by MCCA with packet aggregation scheme is proposed. The effectiveness of the proposed mechanism is shown by simulation results. In addition, the problem named as Routing-Packet Aggregation / De-aggregation-Scheduling optimization problem (abbr. RPADS problem) derived from the proposed mechanism is also studied. A heuristic algorithm for RPADS problem to maximize the total number of supported calls is also proposed.


Author(s):  
Norah Jean-Charles ◽  
Paola Spoletini

This research is being conducted to provide requirements analysts with a supportive tool to use during elicitation interviews. In these interviews that were conducted as part of the overall project, stakeholders were asked a series of questions while wearing the Empatica E4 wristband and being recorded through various voice recording platforms. As a part of an ongoing research project, stakeholders have been interviewed using voice recordings and the Empatica E4 wristband to gather biofeedback data. Requirements analyst need support during elicitation interviews because of the ambiguity that arises during communication making it harder to collect proper requirements. In order to provide features such as visualizing the biofeedback collected from the Empatica E4 wristband and the voice waves, questions such as how to create a user-friendly application and how to synchronize the biofeedback and voice data must be researched. In conclusion, creating this mobile application would to assist requirements analysts in carrying out assessments during elicitation interviews.


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