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TCP, the facto standard used in today's Internet, has been found to perform poorly in Mobile Ad Hoc Networks (MANETs). This is exacerbated by contention with increasing UDP-based high priority multimedia traffic and the class differentiation introduced in current QoS protocols, which results into TCP starvation and increased spurious timeouts. In this paper, we propose a cross-layer TCP enhancement...
One of the critical issues in multimedia applications is the support of quality of service (QoS) at an acceptable level. IEEE802.11e has proposed a simple scheduler but it proves unable to support QoS in variable bit rate traffic. This paper presents a novel scheduling algorithm named adaptive transmission opportunity (ATX) to support variable bit rate in multimedia services. In the proposed scheduling...
Development in new radio technologies and increase in user demands are driving the deployment of a wide array of wireless networks, ranging from 802.11 networks in the local area, to third generation data-only wireless networks in the wide area. With their complementary characteristics, these heterogeneous radio access technologies (RATs) are expected to be integrated together to provide mobile users...
To deploy a multi-cell 802.11 wireless local area network (WLAN), access point (AP) placement and channel assignment are two primary design issues. For a given pattern of traffic demands, we aim at maximizing not only the overall system throughput, but also the fairness in resource sharing among mobile terminals. A novel method for estimating the system throughput of multi-cell WLAN is proposed. An...
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