Khondaker M. Salehin

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Accurate measurement of network parameters such as available bandwidth, link capacity, delay, packet loss and jitter are used to support and monitor several network functions, e.g., traffic engineering, Quality-of-Service (QoS) routing, end-to-end transport performance optimization, and link capacity planning. However, proactive network measurement schemes(More)
—Accurate measurement of available bandwidth (ABW) is an important parameter to analyze network performance. Active measurement is an attractive approach as it provides controllability and flexibility to perform network measurement and monitoring. However, active measurement can affect both the data traffic and the measurement process itself if a(More)
Software routers (SRs) are an alternative low-cost and moderate-performance router solutions implemented with general-purpose workstations able to host multiple network interface cards (NICs). Workstations can be programmed to forward packets between different NICs and to participate in routing functions. Virtualization can be used to model new protocols or(More)
—In this letter, we propose an active scheme to measure the download throughput of an IEEE 802.11 wireless access link in a hybrid wired-wireless network. The proposed scheme is based on sending pairs of probing packets to a wireless end host to determine the smallest and average intra-packet gaps of the probing packets that are used for the estimation of(More)
The packet-pair structure is a widely used probing technique for measuring link capacity over network paths. In packet-pair probing, the probe-gap value at the link of interest (e.g., the link with the smallest capacity or any link along a path) is determined for link-capacity measurement, which can be affected if dispersion (i.e., separation) of the packet(More)
—Software routers are an alternative low-cost and moderate-performance router solutions implemented with general-purpose workstations able to host two or more network interface cards (NICs). Workstations can be programmed to forward packets between different NICs and to participate in routing functions. The value of software routers lies on their low cost(More)
Accurate measurement of network parameters such as available bandwidth (ABW) and link capacity are needed for analyzing network performance. Active measurement is an attractive approach as it has the advantage of controllability and flexibility for performing network measurement. However, it can affect both the data traffic and the measurement process(More)