Forgot Password Sign Up
 
 
Advanced Search
Home   Editorial Board   Author Information   Reviewer Information   Journal Information   Contact Us  
 
Home
Editorial Board
Members IE&AB
Author Information
Author Incentives
Reviewer Information
Reviewer Incentives
Journal Information
Advanced Search
Browse Journals
Call For Papers
Announcements
Formatting Template
Page Charges
Payment Options
Discounts on payments
FAQs
Contact Us

Browse Journal: IST Transactions of Electrical and Electronic Systems-Theory and Applications


Year: Issue Number:

Paper No Title Abstract
08-10-008 Packet VoIP Aggregation: A Mechanism to Improve the Performance of VoIP in Wireless Mesh Networks (WMNs) Show Abstract PDF
  Okech JM, Odhiambo MO, KurienA
As Voice over IP (VoIP) becomes a reality, service providers will be able to offer the service to remote, over and under populated areas that currently are not or are only partially reached by available Public Switched Telephone Network (PSTN). The combination of wireless mesh networks (WMNs) with VoIP is an attractive solution for enterprise infrastructures, presenting availability and reduced cost for both consumers and service providers. The large number of clients in WMNs leads to an increased number of concurrent flows. However, only a handful of these flows reach their destination while still within the quality of service (QoS) bound for VoIP. This performance degradation can be attributed to protocol overhead, packet collision and interferences. This paper introduces VoIP over WMNs and uses a link-based packet aggregation scheme to improve VoIP performance in IEEE 802.11 based WMNs operating under distributed coordinate function (DCF). Simulation results show that the proposed aggregation scheme increases the number of supported flows while also reducing end-to-end delay, jitter, and packet loss of VoIP in WMNs.
 
Home Editorial Board Author Information Reviewer Information Journal Information Contact Us