Samarth H. Shah

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Bandwidth-delay product (BDP) and its upper bound (BDP-UB) have been well-understood in wireline networks such as the Internet. However, they have not been carefully studied in the multi-hop wireless ad hoc network (MANET) domain. In this paper, we show that the most significant difference of computing BDP and BDP-UB in MANET is the coupling of bandwidth(More)
Mobile ad hoc networks (MANET) are becoming an integral part of the ubiquitous computing and communication environment, providing new infrastructure for multimedia applications such as video phone, multimedia-on-demand, and others. In order to access multimedia information in MANET, Quality of Service (QoS) needs to be considered, such as high success rate(More)
Distributed weighted fair scheduling schemes for QoS support in wireless networks have not yet become standard. In this paper we propose an admission control and dynamic bandwidth management scheme that provides fairness in the absence of distributed link level weighted fair scheduling. In case weighted fair scheduling becomes available, our system assists(More)
Available bandwidth estimation is a vital component of admission control for quality-of-service (QoS) in both wireline as well as wireless networks. In wireless networks, the available bandwidth undergoes fast time-scale variations due to channel fading and error from physical obstacles. These effects are not present in wireline networks, and make(More)
Distributed weighted fair scheduling schemes for Quality of Service (QoS) support in wireless local area networks have not yet become standard. Therefore, we propose an Admission Control and Dynamic Bandwidth Management scheme that provides fairness and a soft rate guarantee in the absence of distributed MAC-layer weighted fair scheduling. This scheme is(More)
Over the couple of years, there has been a strong proliferation in the use of multimedia wireless technology all over the world, creating new research and business opportunities for producers and consumers of these technologies. There are several reasons for this fast proliferation. First, wireless networking technologies such as cellular networks, wireless(More)
In recent times, there has been a proliferation in the use of wireless communication all over the world. Several wireless networking technologies such as cellular networks, wireless local area networking (WLAN) and Bluetooth are commonly used in different environments. One problem spanning all types of wireless devices (e.g., cellular phones, PDAs, laptops,(More)
In access-point based wireless networks employing the IEEE 802.11 protocol in DCF mode, without bandwidth management and rate control, users pump data into the network as fast as it is generated. This results in a loss of QoS for the user and performance degradation of the network. There is a need for bandwidth allocation and for users to cooperatively(More)