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Abstract-Network Coding Opportunistic Routing (NCOR) methods of wireless mesh networks have the advantage of high throughput and high reliability. However, they suffer problems of higher decoding latency and frequent packet collisions. Also, they have the deficiency in supporting multi-type services. Focusing on the QoS problems of multi-service supporting, we study the optimized NCOR routing methods...
This paper proposes an effective control method aimed at the linear system with time-varying delay. We address the problem by means of switching among a finite family of candidate controllers. Our control method is based on semi-discretization method and hysteresis-based switching algorithms, where the former is introduced to design the candidate controller under one fixed time delay and the latter...
Developing routing protocol for vehicular ad hoc networks (VANET) is a challenging task due to potentially large network sizes, rapidly changing topology and frequent network disconnections, which can cause failure or inefficiency in traditional ad hoc routing protocols. We propose an adaptive connectivity aware routing (ACAR) protocol that addresses these problems by adaptively selecting an optimal...
Real-time multimedia transport has stringent QoS requirements, such as bandwidth, delay, jitter, and loss ratio. Wireless sensor networks are useful for streaming multimedia data in infrastructure-free and hazardous environments. However, these networks are composed of nodes with constrained bandwidth and energy. In QoS routing for wired networks, multipath routing is widely used. Some existing ad...
Wireless sensor networks are distributed event-based systems with severe energy constraints, variable quality links, low data-rate and many-to-one event-to-sink flows. Communication algorithms for sensor networks, such as directed diffusion, are designed to operate efficiently under these constraints. However, directed diffusion is not efficient in more challenging domains, such as video sensor networks,...
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